Merge pull request #4 from espruino/master

update from upstream
2021-03-07 19:29:44 +01:00 · 2021-03-07 19:29:44 +01:00 · e0084e6333
parent 79fe999588 a7efdb9724
commit e0084e6333
40 changed files with 1324 additions and 94 deletions
--- a/apps.json
+++ b/apps.json
@ -80,7 +80,7 @@
    "name": "Notifications (default)",
    "shortName":"Notifications",
    "icon": "notify.png",
-    "version":"0.06",
+    "version":"0.07",
    "description": "A handler for displaying notifications that displays them in a bar at the top of the screen",
    "tags": "widget",
    "type": "notify",
@ -139,7 +139,7 @@
  { "id": "gbridge",
    "name": "Gadgetbridge",
    "icon": "app.png",
-    "version":"0.20",
+    "version":"0.21",
    "description": "The default notification handler for Gadgetbridge notifications from Android",
    "tags": "tool,system,android,widget",
    "readme": "README.md",
@ -584,7 +584,7 @@
  { "id": "hrm",
    "name": "Heart Rate Monitor",
    "icon": "heartrate.png",
-    "version":"0.02",
+    "version":"0.03",
    "description": "Measure your heart rate and see live sensor data",
    "tags": "health",
    "storage": [
@ -1590,7 +1590,7 @@
    "name": "BangleRun",
    "shortName": "BangleRun",
    "icon": "banglerun.png",
-    "version": "0.09",
+    "version": "0.10",
    "interface": "interface.html",
    "description": "An app for running sessions. Displays info and logs your run for later viewing.",
    "tags": "run,running,fitness,outdoors",
@ -2822,8 +2822,8 @@
  "name": "Walkers Clock",
  "shortName":"Walkers Clock",
  "icon": "walkersclock48.png",
-  "version":"0.02",
-  "description": "A larg font watch, displays steps, can switch GPS on/off, displays grid reference",
+  "version":"0.03",
+  "description": "A large font watch, displays steps, can switch GPS on/off, displays grid reference",
  "type":"clock",
  "tags": "clock, gps, tools, outdoors",
  "readme": "README.md",
@ -2856,6 +2856,18 @@
    {"name":"widhrt.wid.js","url":"widget.js"}
  ]
 },
+{ "id": "countdowntimer",
+  "name" : "Countdown Timer",
+  "icon": "countdowntimer.png",
+  "version": "0.01",
+  "description": "A simple countdown timer with a focus on usability",
+  "tags": "timer, tool",
+  "readme": "README.md",
+  "storage": [
+    {"name": "countdowntimer.app.js", "url": "countdowntimer.js"},
+    {"name": "countdowntimer.img", "url": "countdowntimer-icon.js", "evaluate": true}
+  ]
+},
 { "id": "helloworld",
  "name": "hello,world!",
  "shortName":"helloworld",
@ -2868,5 +2880,44 @@
    {"name":"helloworld.app.js","url":"app.js"},
    {"name":"helloworld.img","url":"app-icon.js","evaluate":true}
  ]
+},
+{ "id": "widcom",
+  "name": "Compass Widget",
+  "icon": "widget.png",
+  "version":"0.01",
+  "description": "Tiny widget to show the power on/off status of the Compass. Requires firmware v2.08.167 or later",
+  "tags": "widget, compass",
+  "type":"widget",
+  "readme": "README.md",
+  "storage": [
+    {"name":"widcom.wid.js","url":"widget.js"}
+  ]
+},
+{ "id": "arrow",
+  "name": "Arrow Compass",
+  "icon": "arrow.png",
+  "type":"app",
+  "version":"0.02",
+  "description": "Moving arrow compass that points North, shows heading, with tilt correction. Based on jeffmer's Navigation Compass",
+  "tags": "tool,outdoors",
+  "readme": "README.md",
+  "storage": [
+    {"name":"arrow.app.js","url":"app.js"},
+    {"name":"arrow.img","url":"icon.js","evaluate":true}
+  ]
+},
+{ "id": "waypointer",
+  "name": "Way Pointer",
+  "icon": "waypointer.png",
+  "version":"0.01",
+  "description": "Navigate to a waypoint using the GPS for bearing and compass to point way, uses the same waypoint interface as GPS Navigation",
+  "tags": "tool,outdoors,gps",
+  "readme": "README.md",
+  "interface":"waypoints.html",
+  "storage": [
+    {"name":"waypointer.app.js","url":"app.js"},
+    {"name":"waypoints.json","url":"waypoints.json","evaluate":false},
+    {"name":"waypointer.img","url":"icon.js","evaluate":true}
+  ]
 }
 ]
--- a/apps/arrow/README.md
+++ b/apps/arrow/README.md
@ -0,0 +1,41 @@
+# Arrow Compass
+
+A variation of jeffmer's Navigation Compass.  The compass points
+North and shows the current heading.
+
+This is a tilt and roll compensated compass with a linear
+display. The compass will display the same direction that it shows
+when flat as when it is tilted (rotation around the W-S axis) or
+rolled (rotation around the N-S) axis. *Even with compensation, it
+would be beyond foolish to rely solely on this app for any serious
+navigational purpose.*
+
+![](arrow_screenshot.jpg)
+
+## Calibration
+
+Correct operation of this app depends critically on calibration. When
+first run on a Bangle, the app will request calibration. This lasts
+for 30 seconds during which you should move the watch slowly through
+figures of 8. It is important that during calibration the watch is
+fully rotated around each of it axes. If the app does give the
+correct direction heading or is not stable with respect to tilt and
+roll - redo the calibration by pressing *BTN3*. Calibration data is
+recorded in a storage file named `magnav.json`.
+
+It is also worth noting that the presence of the magnetic charging
+clamps will require the compass to be recalibrated after every
+charge.
+
+## Controls
+
+*BTN1* - switches to your selected clock app.
+
+*BTN2* - switches to the app launcher.
+
+*BTN3* - invokes calibration ( can be cancelled if pressed accidentally)
+
+
+## Acknowledgement
+
+This app is based in the work done by [jeffmer](https://github.com/jeffmer/JeffsBangleAppsDev)
--- a/apps/arrow/app.js
+++ b/apps/arrow/app.js
@ -0,0 +1,179 @@
+var pal1color = new Uint16Array([0x0000,0xFFC0],0,1);
+var pal2color = new Uint16Array([0x0000,0xffff],0,1);
+var buf1 = Graphics.createArrayBuffer(160,160,1,{msb:true});
+var buf2 = Graphics.createArrayBuffer(80,40,1,{msb:true});
+var img = require("heatshrink").decompress(atob("lEowIPMjAEDngEDvwED/4DCgP/wAEBgf/4AEBg//8AEBh//+AEBj///AEBn///gEBv///wmCAAImCAAIoBFggE/AkaaEABo="));
+
+var bearing=0; // always point north
+var heading = 0;
+var candraw = false;
+var CALIBDATA = require("Storage").readJSON("magnav.json",1)||null;
+
+Bangle.setLCDTimeout(30);
+
+function flip1(x,y) {
+ g.drawImage({width:160,height:160,bpp:1,buffer:buf1.buffer, palette:pal1color},x,y);
+ buf1.clear();
+}
+
+function flip2(x,y) {
+ g.drawImage({width:80,height:40,bpp:1,buffer:buf2.buffer, palette:pal2color},x,y);
+ buf2.clear();
+}
+
+function radians(d) {
+  return (d*Math.PI) / 180;
+}
+
+function drawCompass(course) {
+  if(!candraw) return;
+
+  buf1.setColor(1);
+  buf1.fillCircle(80,80,79,79);
+  buf1.setColor(0);
+  buf1.fillCircle(80,80,69,69);
+  buf1.setColor(1);
+  buf1.drawImage(img, 80, 80, {scale:3,  rotate:radians(course)} );
+  flip1(40, 30);
+}
+
+function newHeading(m,h){ 
+    var s = Math.abs(m - h);
+    var delta = (m>h)?1:-1;
+    if (s>=180){s=360-s; delta = -delta;} 
+    if (s<2) return h;
+    var hd = h + delta*(1 + Math.round(s/5));
+    if (hd<0) hd+=360;
+    if (hd>360)hd-= 360;
+    return hd;
+}
+
+function tiltfixread(O,S){
+  var start = Date.now();
+  var m = Bangle.getCompass();
+  var g = Bangle.getAccel();
+  m.dx =(m.x-O.x)*S.x; m.dy=(m.y-O.y)*S.y; m.dz=(m.z-O.z)*S.z;
+  var d = Math.atan2(-m.dx,m.dy)*180/Math.PI;
+  if (d<0) d+=360;
+  var phi = Math.atan(-g.x/-g.z);
+  var cosphi = Math.cos(phi), sinphi = Math.sin(phi);
+  var theta = Math.atan(-g.y/(-g.x*sinphi-g.z*cosphi));
+  var costheta = Math.cos(theta), sintheta = Math.sin(theta);
+  var xh = m.dy*costheta + m.dx*sinphi*sintheta + m.dz*cosphi*sintheta;
+  var yh = m.dz*sinphi - m.dx*cosphi;
+  var psi = Math.atan2(yh,xh)*180/Math.PI;
+  if (psi<0) psi+=360;
+  return psi;
+}
+
+// Note actual mag is 360-m, error in firmware
+function reading() {
+  var d = tiltfixread(CALIBDATA.offset,CALIBDATA.scale);
+  heading = newHeading(d,heading);
+  var dir = bearing - heading;
+  if (dir < 0) dir += 360;
+  if (dir > 360) dir -= 360;
+  drawCompass(dir);  // we want compass to show us where to go
+  buf2.setColor(1);
+  buf2.setFontAlign(-1,-1);
+  buf2.setFont("Vector",38);
+  var course = Math.round(heading);
+  var cs = course.toString();
+  cs = course<10?"00"+cs : course<100 ?"0"+cs : cs;
+  buf2.drawString(cs,0,0);
+  flip2(90, 200);
+}
+
+function calibrate(){
+  var max={x:-32000, y:-32000, z:-32000},
+      min={x:32000, y:32000, z:32000};
+  var ref = setInterval(()=>{
+      var m = Bangle.getCompass();
+      max.x = m.x>max.x?m.x:max.x;
+      max.y = m.y>max.y?m.y:max.y;
+      max.z = m.z>max.z?m.z:max.z;
+      min.x = m.x<min.x?m.x:min.x;
+      min.y = m.y<min.y?m.y:min.y;
+      min.z = m.z<min.z?m.z:min.z;
+  }, 100);
+  return new Promise((resolve) => {
+     setTimeout(()=>{
+       if(ref) clearInterval(ref);
+       var offset = {x:(max.x+min.x)/2,y:(max.y+min.y)/2,z:(max.z+min.z)/2};
+       var delta  = {x:(max.x-min.x)/2,y:(max.y-min.y)/2,z:(max.z-min.z)/2};
+       var avg = (delta.x+delta.y+delta.z)/3;
+       var scale = {x:avg/delta.x, y:avg/delta.y, z:avg/delta.z};
+       resolve({offset:offset,scale:scale});
+     },30000);
+  });
+}
+
+function docalibrate(e,first){
+  const title = "Calibrate";
+  const msg = "takes 30 seconds";
+  function action(b){
+    if (b) {
+      buf1.setColor(1);
+      buf1.setFont("Vector", 30);
+      buf1.setFontAlign(0,-1);
+      buf1.drawString("Figure 8s",80, 40);
+      buf1.drawString("to",80, 80);
+      buf1.drawString("Calibrate",80, 120);
+      flip1(40,40);
+
+      calibrate().then((r)=>{
+        require("Storage").write("magnav.json",r);
+        Bangle.buzz();
+        CALIBDATA = r;
+        startdraw();
+        setButtons();
+      });
+    } else {
+      startdraw();
+      setTimeout(setButtons,1000);
+    }
+  }   
+  if (first===undefined) first=false;
+  stopdraw();
+  clearWatch();
+  if (first) 
+    E.showAlert(msg,title).then(action.bind(null,true));
+  else 
+    E.showPrompt(msg,{title:title,buttons:{"Start":true,"Cancel":false}}).then(action);
+}
+
+var intervalRef;
+
+function startdraw(){
+  g.clear();
+  g.setColor(1,1,1);
+  Bangle.drawWidgets();
+  candraw = true;
+  intervalRef = setInterval(reading,200);
+}
+
+function stopdraw() {
+  candraw=false;
+  if(intervalRef) {clearInterval(intervalRef);}
+}
+
+function setButtons(){
+  setWatch(()=>{load();}, BTN1, {repeat:false,edge:"falling"});
+  setWatch(Bangle.showLauncher, BTN2, {repeat:false,edge:"falling"});
+  setWatch(docalibrate, BTN3, {repeat:false,edge:"falling"});
+}
+ 
+Bangle.on('lcdPower',function(on) {
+  if (on) {
+    startdraw();
+  } else {
+    stopdraw();
+  }
+});
+
+Bangle.on('kill',()=>{Bangle.setCompassPower(0);});
+
+Bangle.loadWidgets();
+Bangle.setCompassPower(1);
+startdraw();
+setButtons();
--- a/apps/arrow/arrow.png
+++ b/apps/arrow/arrow.png
--- a/apps/arrow/arrow_screenshot.jpg
+++ b/apps/arrow/arrow_screenshot.jpg
--- a/apps/arrow/icon.js
+++ b/apps/arrow/icon.js
@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mUywIebg/4AocP//AAoUf//+BYgMDh/+j/8Dol/wEAgYFBg/wgEBFIV+AQIVCh4fBnwFBgISBj8AhgJCh+Ag4BB4ED8ED+ASCAYJDBnkAvkAIYIWBjw8B/EB8AcBn//gF4DwJdBAQMA/EP738FYM8g/nz+A+EPgHx8YKBgfAjF4sAKBHIItBBQJMBFoJEBHII1BIQIDCvAUCAYYUBHIIDBMIXACgQpBRAIUBMIIrBDAIWCVYaiBTYQJCn4FBQgIIBEYKrDQ4MBVYUf8CQCCoP/w6DBAAKIBAocHAoIwBBgb5DDoYAZA="))
--- a/apps/banglerun/ChangeLog
+++ b/apps/banglerun/ChangeLog
@ -7,3 +7,7 @@
 0.07: Fixed GPS update, added guards against NaN values
 0.08: Fix issue with GPS coordinates being wrong after the first one
 0.09: Another GPS fix (log raw coordinates - not filtered ones)
+0.10: Removed kalman filtering to allow distance log to work
+      Only log data every 5 seconds (not 1 sec)
+      Don't create a file until the first log entry is ready
+      Add labels for buttons
--- a/apps/banglerun/app.js
+++ b/apps/banglerun/app.js
@ -1 +1 @@
-!function(){"use strict";const t={STOP:63488,PAUSE:65504,RUN:2016};function n(t,n,r){g.setColor(0),g.fillRect(n-60,r,n+60,r+30),g.setColor(65535),g.drawString(t,n,r)}function r(r){var e;g.setFontVector(30),g.setFontAlign(0,-1,0),n((r.distance/1e3).toFixed(2),60,55),n(function(t){const n=Math.round(t),r=Math.floor(n/3600),e=Math.floor(n/60)%60,o=n%60;return(r?r+":":"")+("0"+e).substr(-2)+":"+("0"+o).substr(-2)}(r.duration),180,55),n(function(t){if(t<.1667)return"__'__\"";const n=Math.round(1e3/t),r=Math.floor(n/60),e=n%60;return("0"+r).substr(-2)+"'"+("0"+e).substr(-2)+'"'}(r.speed),60,115),n(r.hr.toFixed(0),180,115),n(r.steps.toFixed(0),60,175),n(r.cadence.toFixed(0),180,175),g.setFont("6x8",2),g.setColor(r.gpsValid?2016:63488),g.fillRect(0,216,80,240),g.setColor(0),g.drawString("GPS",40,220),g.setColor(65535),g.fillRect(80,216,160,240),g.setColor(0),g.drawString(("0"+(e=new Date).getHours()).substr(-2)+":"+("0"+e.getMinutes()).substr(-2),120,220),g.setColor(t[r.status]),g.fillRect(160,216,240,240),g.setColor(0),g.drawString(r.status,200,220)}function e(t){g.clear(),g.setColor(50712),g.setFont("6x8",2),g.setFontAlign(0,-1,0),g.drawString("DIST (KM)",60,32),g.drawString("TIME",180,32),g.drawString("PACE",60,92),g.drawString("HEART",180,92),g.drawString("STEPS",60,152),g.drawString("CADENCE",180,152),r(t),Bangle.drawWidgets()}var o;function a(t){t.status===o.Stopped&&function(t){const n=(new Date).toISOString().replace(/[-:]/g,""),r=`banglerun_${n.substr(2,6)}_${n.substr(9,6)}`;t.file=require("Storage").open(r,"w"),t.file.write(["timestamp","latitude","longitude","altitude","duration","distance","heartrate","steps"].join(",")+"\n")}(t),t.status===o.Running?t.status=o.Paused:t.status=o.Running,r(t)}!function(t){t.Stopped="STOP",t.Paused="PAUSE",t.Running="RUN"}(o||(o={}));const s={fix:NaN,lat:NaN,lon:NaN,alt:NaN,vel:NaN,dop:NaN,gpsValid:!1,x:NaN,y:NaN,z:NaN,v:NaN,t:NaN,dt:NaN,pError:NaN,vError:NaN,hr:60,hrError:100,file:null,drawing:!1,status:o.Stopped,duration:0,distance:0,speed:0,steps:0,cadence:0};var i;i=s,Bangle.on("GPS",t=>function(t,n){t.lat=n.lat,t.lon=n.lon,t.alt=n.alt,t.vel=n.speed/3.6,t.fix=n.fix,t.dop=n.hdop,t.gpsValid=t.fix>0&&t.dop<=5,function(t){const n=Date.now();let r=(n-t.t)/1e3;if(isFinite(r)||(r=0),t.t=n,t.dt+=r,t.status===o.Running&&(t.duration+=r),!t.gpsValid)return;const e=6371008.8+t.alt,a=t.lat*Math.PI/180,s=t.lon*Math.PI/180,i=e*Math.cos(a)*Math.cos(s),d=e*Math.cos(a)*Math.sin(s),u=e*Math.sin(a),g=t.vel;if(!t.x)return t.x=i,t.y=d,t.z=u,t.v=g,t.pError=2.5*t.dop,void(t.vError=.05*t.dop);const l=i-t.x,c=d-t.y,p=u-t.z,f=g-t.v,N=Math.sqrt(l*l+c*c+p*p),h=Math.abs(f);t.pError+=t.v*t.dt,t.dt=0;const S=N+2.5*t.dop,E=h+.05*t.dop,w=t.pError/(t.pError+S)||0,x=t.vError/(t.vError+E)||0;t.x+=l*w,t.y+=c*w,t.z+=p*w,t.v+=f*x,t.pError+=(S-t.pError)*w,t.vError+=(E-t.vError)*x,t.status===o.Running&&(t.distance+=N*w,t.speed=t.distance/t.duration||0,t.cadence=60*t.steps/t.duration||0)}(t),r(t),t.gpsValid&&t.status===o.Running&&function(t){t.file.write([Date.now().toFixed(0),t.lat.toFixed(6),t.lon.toFixed(6),t.alt.toFixed(2),t.duration.toFixed(0),t.distance.toFixed(2),t.hr.toFixed(0),t.steps.toFixed(0)].join(",")+"\n")}(t)}(i,t)),Bangle.setGPSPower(1),function(t){Bangle.on("HRM",n=>function(t,n){if(0===n.confidence)return;const r=n.bpm-t.hr,e=Math.abs(r)+101-n.confidence,o=t.hrError/(t.hrError+e)||0;t.hr+=r*o,t.hrError+=(e-t.hrError)*o}(t,n)),Bangle.setHRMPower(1)}(s),function(t){Bangle.on("step",()=>function(t){t.status===o.Running&&(t.steps+=1)}(t))}(s),function(t){Bangle.loadWidgets(),Bangle.on("lcdPower",n=>{t.drawing=n,n&&e(t)}),e(t)}(s),setWatch(()=>a(s),BTN1,{repeat:!0,edge:"falling"}),setWatch(()=>function(t){t.status===o.Paused&&function(t){t.duration=0,t.distance=0,t.speed=0,t.steps=0,t.cadence=0}(t),t.status===o.Running?t.status=o.Paused:t.status=o.Stopped,r(t)}(s),BTN3,{repeat:!0,edge:"falling"})}();
+!function(){"use strict";var t;!function(t){t.Stopped="STOP",t.Paused="PAUSE",t.Running="RUN"}(t||(t={}));const n={STOP:63488,PAUSE:65504,RUN:2016};function e(t,n,e){g.setColor(0),g.fillRect(n-60,e,n+60,e+30),g.setColor(65535),g.drawString(t,n,e)}function i(i){var s;g.setFontVector(30),g.setFontAlign(0,-1,0),e((i.distance/1e3).toFixed(2),60,55),e(function(t){const n=Math.round(t),e=Math.floor(n/3600),i=Math.floor(n/60)%60,s=n%60;return(e?e+":":"")+("0"+i).substr(-2)+":"+("0"+s).substr(-2)}(i.duration),172,55),e(function(t){if(t<.1667)return"__'__\"";const n=Math.round(1e3/t),e=Math.floor(n/60),i=n%60;return("0"+e).substr(-2)+"'"+("0"+i).substr(-2)+'"'}(i.speed),60,115),e(i.hr.toFixed(0),172,115),e(i.steps.toFixed(0),60,175),e(i.cadence.toFixed(0),172,175),g.setFont("6x8",2),g.setColor(i.gpsValid?2016:63488),g.fillRect(0,216,80,240),g.setColor(0),g.drawString("GPS",40,220),g.setColor(65535),g.fillRect(80,216,160,240),g.setColor(0),g.drawString(("0"+(s=new Date).getHours()).substr(-2)+":"+("0"+s.getMinutes()).substr(-2),120,220),g.setColor(n[i.status]),g.fillRect(160,216,230,240),g.setColor(0),g.drawString(i.status,200,220),g.setFont("6x8").setFontAlign(0,0,1).setColor(-1),i.status===t.Paused?g.drawString("START",236,60,1).drawString(" CLEAR ",236,180,1):i.status===t.Running?g.drawString(" PAUSE ",236,60,1).drawString(" PAUSE ",236,180,1):g.drawString("START",236,60,1).drawString("      ",236,180,1)}function s(t){g.clear(),g.setColor(50712),g.setFont("6x8",2),g.setFontAlign(0,-1,0),g.drawString("DIST (KM)",60,32),g.drawString("TIME",180,32),g.drawString("PACE",60,92),g.drawString("HEART",180,92),g.drawString("STEPS",60,152),g.drawString("CADENCE",180,152),i(t),Bangle.drawWidgets()}function a(n){n.status===t.Stopped&&function(t){const n=(new Date).toISOString().replace(/[-:]/g,""),e=`banglerun_${n.substr(2,6)}_${n.substr(9,6)}`;t.file=require("Storage").open(e,"w"),t.fileWritten=!1}(n),n.status===t.Running?n.status=t.Paused:n.status=t.Running,i(n)}const r={fix:NaN,lat:NaN,lon:NaN,alt:NaN,vel:NaN,dop:NaN,gpsValid:!1,x:NaN,y:NaN,z:NaN,t:NaN,timeSinceLog:0,hr:60,hrError:100,file:null,fileWritten:!1,drawing:!1,status:t.Stopped,duration:0,distance:0,speed:0,steps:0,cadence:0};var o;o=r,Bangle.on("GPS",n=>function(n,e){n.lat=e.lat,n.lon=e.lon,n.alt=e.alt,n.vel=e.speed/3.6,n.fix=e.fix,n.dop=e.hdop,n.gpsValid=n.fix>0,function(n){const e=Date.now();let i=(e-n.t)/1e3;if(isFinite(i)||(i=0),n.t=e,n.timeSinceLog+=i,n.status===t.Running&&(n.duration+=i),!n.gpsValid)return;const s=6371008.8+n.alt,a=n.lat*Math.PI/180,r=n.lon*Math.PI/180,o=s*Math.cos(a)*Math.cos(r),g=s*Math.cos(a)*Math.sin(r),d=s*Math.sin(a);if(!n.x)return n.x=o,n.y=g,void(n.z=d);const u=o-n.x,l=g-n.y,c=d-n.z,f=Math.sqrt(u*u+l*l+c*c);n.x=o,n.y=g,n.z=d,n.status===t.Running&&(n.distance+=f,n.speed=n.distance/n.duration||0,n.cadence=60*n.steps/n.duration||0)}(n),i(n),n.gpsValid&&n.status===t.Running&&n.timeSinceLog>5&&(n.timeSinceLog=0,function(t){t.fileWritten||(t.file.write(["timestamp","latitude","longitude","altitude","duration","distance","heartrate","steps"].join(",")+"\n"),t.fileWritten=!0),t.file.write([Date.now().toFixed(0),t.lat.toFixed(6),t.lon.toFixed(6),t.alt.toFixed(2),t.duration.toFixed(0),t.distance.toFixed(2),t.hr.toFixed(0),t.steps.toFixed(0)].join(",")+"\n")}(n))}(o,n)),Bangle.setGPSPower(1),function(t){Bangle.on("HRM",n=>function(t,n){if(0===n.confidence)return;const e=n.bpm-t.hr,i=Math.abs(e)+101-n.confidence,s=t.hrError/(t.hrError+i)||0;t.hr+=e*s,t.hrError+=(i-t.hrError)*s}(t,n)),Bangle.setHRMPower(1)}(r),function(n){Bangle.on("step",()=>function(n){n.status===t.Running&&(n.steps+=1)}(n))}(r),function(t){Bangle.loadWidgets(),Bangle.on("lcdPower",n=>{t.drawing=n,n&&s(t)}),s(t)}(r),setWatch(()=>a(r),BTN1,{repeat:!0,edge:"falling"}),setWatch(()=>function(n){n.status===t.Paused&&function(t){t.duration=0,t.distance=0,t.speed=0,t.steps=0,t.cadence=0}(n),n.status===t.Running?n.status=t.Paused:n.status=t.Stopped,i(n)}(r),BTN3,{repeat:!0,edge:"falling"})}();
--- a/apps/banglerun/src/display.ts
+++ b/apps/banglerun/src/display.ts
@ -1,4 +1,4 @@
-import { AppState } from './state';
+import { ActivityStatus, AppState } from './state';

 declare var Bangle: any;
 declare var g: any;
@ -26,11 +26,11 @@ function drawBackground(): void {
  g.setFont('6x8', 2);
  g.setFontAlign(0, -1, 0);
  g.drawString('DIST (KM)', 60, 32);
-  g.drawString('TIME', 180, 32);
+  g.drawString('TIME', 172, 32);
  g.drawString('PACE', 60, 92);
-  g.drawString('HEART', 180, 92);
+  g.drawString('HEART', 172, 92);
  g.drawString('STEPS', 60, 152);
-  g.drawString('CADENCE', 180, 152);
+  g.drawString('CADENCE', 172, 152);
 }

 function drawValue(value: string, x: number, y: number) {
@ -45,11 +45,11 @@ function draw(state: AppState): void {
  g.setFontAlign(0, -1, 0);

  drawValue(formatDistance(state.distance), 60, 55);
-  drawValue(formatTime(state.duration), 180, 55);
+  drawValue(formatTime(state.duration), 172, 55);
  drawValue(formatPace(state.speed), 60, 115);
-  drawValue(state.hr.toFixed(0), 180, 115);
+  drawValue(state.hr.toFixed(0), 172, 115);
  drawValue(state.steps.toFixed(0), 60, 175);
-  drawValue(state.cadence.toFixed(0), 180, 175);
+  drawValue(state.cadence.toFixed(0), 172, 175);

  g.setFont('6x8', 2);

@ -64,9 +64,18 @@ function draw(state: AppState): void {
  g.drawString(formatClock(new Date()), 120, 220);

  g.setColor(STATUS_COLORS[state.status]);
-  g.fillRect(160, 216, 240, 240);
+  g.fillRect(160, 216, 230, 240);
  g.setColor(0x0000);
  g.drawString(state.status, 200, 220);
+
+  g.setFont("6x8").setFontAlign(0,0,1).setColor(-1);
+  if (state.status === ActivityStatus.Paused) {
+    g.drawString("START",236,60,1).drawString(" CLEAR ",236,180,1);
+  } else if (state.status === ActivityStatus.Running) {
+    g.drawString(" PAUSE ",236,60,1).drawString(" PAUSE ",236,180,1);
+  } else {
+    g.drawString("START",236,60,1).drawString("      ",236,180,1);
+  }
 }

 function drawAll(state: AppState) {
--- a/apps/banglerun/src/gps.ts
+++ b/apps/banglerun/src/gps.ts
@ -14,8 +14,6 @@ interface GpsEvent {
 }

 const EARTH_RADIUS = 6371008.8;
-const POS_ACCURACY = 2.5;
-const VEL_ACCURACY = 0.05;

 function initGps(state: AppState): void {
  Bangle.on('GPS', (gps: GpsEvent) => readGps(state, gps));
@ -29,13 +27,17 @@ function readGps(state: AppState, gps: GpsEvent): void {
  state.vel = gps.speed / 3.6;
  state.fix = gps.fix;
  state.dop = gps.hdop;
-
-  state.gpsValid = state.fix > 0 && state.dop <= 5;
+  state.gpsValid = state.fix > 0;

  updateGps(state);
  draw(state);

-  if (state.gpsValid && state.status === ActivityStatus.Running) {
+  /* Only log GPS data every 5 secs if we
+  have a fix and we're running. */
+  if (state.gpsValid &&
+      state.status === ActivityStatus.Running &&
+      state.timeSinceLog > 5) {
+    state.timeSinceLog = 0;
    updateLog(state);
  }
 }
@ -44,9 +46,8 @@ function updateGps(state: AppState): void {
  const t = Date.now();
  let dt = (t - state.t) / 1000;
  if (!isFinite(dt)) dt=0;
-
  state.t = t;
-  state.dt += dt;
+  state.timeSinceLog += dt;

  if (state.status === ActivityStatus.Running) {
    state.duration += dt;
@ -62,52 +63,25 @@ function updateGps(state: AppState): void {
  const x = r * Math.cos(lat) * Math.cos(lon);
  const y = r * Math.cos(lat) * Math.sin(lon);
  const z = r * Math.sin(lat);
-  const v = state.vel;

  if (!state.x) {
    state.x = x;
    state.y = y;
    state.z = z;
-    state.v = v;
-    state.pError = state.dop * POS_ACCURACY;
-    state.vError = state.dop * VEL_ACCURACY;
    return;
  }

  const dx = x - state.x;
  const dy = y - state.y;
  const dz = z - state.z;
-  const dv = v - state.v;
  const dpMag = Math.sqrt(dx * dx + dy * dy + dz * dz);
-  const dvMag = Math.abs(dv);

-  state.pError += state.v * state.dt;
-  state.dt = 0;
-
-  const pError = dpMag + state.dop * POS_ACCURACY;
-  const vError = dvMag + state.dop * VEL_ACCURACY;
-
-  const pGain = (state.pError / (state.pError + pError)) || 0;
-  const vGain = (state.vError / (state.vError + vError)) || 0;
-
-  state.x += dx * pGain;
-  state.y += dy * pGain;
-  state.z += dz * pGain;
-  state.v += dv * vGain;
-  state.pError += (pError - state.pError) * pGain;
-  state.vError += (vError - state.vError) * vGain;
-
-/*// we're not currently updating lat/lon with the kalman filter
-  // as it seems not to update them correctly at the moment
-  // and we only use them for logging (where it makes sense to use
-  // raw GPS coordinates)
-  const pMag = Math.sqrt(state.x * state.x + state.y * state.y + state.z * state.z);
-  state.lat = (Math.asin(state.z / pMag) * 180 / Math.PI) || 0;
-  state.lon = (Math.atan2(state.y, state.x) * 180 / Math.PI) || 0;
-  state.alt = pMag - EARTH_RADIUS;*/
+  state.x = x;
+  state.y = y;
+  state.z = z;

  if (state.status === ActivityStatus.Running) {
-    state.distance += dpMag * pGain;
+    state.distance += dpMag;
    state.speed = (state.distance / state.duration) || 0;
    state.cadence = (60 * state.steps / state.duration) || 0;
  }
--- a/apps/banglerun/src/log.ts
+++ b/apps/banglerun/src/log.ts
@ -8,6 +8,11 @@ function initLog(state: AppState): void {
  const time = datetime.substr(9, 6);
  const filename = `banglerun_${date}_${time}`;
  state.file = require('Storage').open(filename, 'w');
+  state.fileWritten = false;
+}
+
+function updateLog(state: AppState): void {
+  if (!state.fileWritten) {
    state.file.write([
      'timestamp',
      'latitude',
@ -18,9 +23,8 @@ function initLog(state: AppState): void {
      'heartrate',
      'steps',
    ].join(',') + '\n');
-}
-
-function updateLog(state: AppState): void {
+    state.fileWritten = true;
+  }
  state.file.write([
    Date.now().toFixed(0),
    state.lat.toFixed(6),
--- a/apps/banglerun/src/state.ts
+++ b/apps/banglerun/src/state.ts
@ -14,15 +14,14 @@ interface AppState {
  dop: number;
  gpsValid: boolean;

-  // GPS Kalman data
+  // Absolute position data
  x: number;
  y: number;
  z: number;
-  v: number;
+  // Last fix time
  t: number;
-  dt: number;
-  pError: number;
-  vError: number;
+  // Last time we saved log info
+  timeSinceLog : number;

  // HRM data
  hr: number,
@ -30,6 +29,7 @@ interface AppState {

  // Logger data
  file: File;
+  fileWritten: boolean;

  // Drawing data
  drawing: boolean;
@ -62,16 +62,14 @@ function initState(): AppState {
    x: NaN,
    y: NaN,
    z: NaN,
-    v: NaN,
    t: NaN,
-    dt: NaN,
-    pError: NaN,
-    vError: NaN,
+    timeSinceLog : 0,

    hr: 60,
    hrError: 100,

    file: null,
+    fileWritten: false,

    drawing: false,

--- a/apps/countdowntimer/ChangeLog
+++ b/apps/countdowntimer/ChangeLog
@ -0,0 +1 @@
+0.01: Initial version
--- a/apps/countdowntimer/README.md
+++ b/apps/countdowntimer/README.md
@ -0,0 +1,12 @@
+# countdown-timer
+
+A basic bangle.js timer with a focus on usability.
+
+* Start or Pause the timer with BTN1
+* Reset the timer with BTN2
+* Exit the application with BTN3
+* Touch the right side of the screen to increase the time amount by 1 second
+* Touch the left side of the scren to decrease the time amount by 1 second
+* Touching and holding the screen will increase or decrease the time amount by 60 seconds at a time.
+
+Icons made by [Freepik](https://www.freepik.com) from [Flaticon](https://www.flaticon.com/).
--- a/apps/countdowntimer/countdowntimer-icon.js
+++ b/apps/countdowntimer/countdowntimer-icon.js
@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEwwgMJhvd7tEogkSC4lAC6xWUgUgNysiC6hGBL58BiMQLoYXDMJkRAAIWEC4gYJFwIABCwgXFDBAWCpoXLMYwuCigUD6czmUSmQYKC4QuD6f//8xiUzmckJJIuECwQXEDAgXGFwc/C4XykYXCmZIJCwVPCwQABCwczmgwHXYXUCwgXFGBAXC74XLGAQXELowXIVgYXF6QWF+Z3EJAhGFUganHJAoXFRooXLMAQXCLwwXHMAQXUMAQXCRwQWFC9HSiMvC40iCocxiKoEC4cTC4sRiLBDC5MiF4wXFmQXHL4/zkRHEO6H/OwwXFX5IXfd5HfC5s0C4/TC5skRwZ4LLxAXHMAxeIC4hIJLxYXEJAxGMJAgwFFw4XGGAZhD+UjLoxGEC4owDmMSIoouGJAgYBGIIXDCwYuGGAoABIQMiaIQuKDA/dCoguJJIwXHCxQYGCyIYFCyRjELZYA="))
--- a/apps/countdowntimer/countdowntimer.js
+++ b/apps/countdowntimer/countdowntimer.js
@ -0,0 +1,232 @@
+const heatshrinkDecompress = require("heatshrink").decompress;
+
+const playIcon = heatshrinkDecompress(atob("jEYwhC/gFwBZV3BhV3u4LLBhILCEpALCBhALDu9gBaojKHZZrVQZSbLAG4A="));
+const pauseIcon = heatshrinkDecompress(atob("jEYwhC/xGIAYoL/Bf4LfAHA="));
+const resetIcon = heatshrinkDecompress(atob("jEYwg30h3u93gAgIKHBgXuBYgIBoEEBoQWFAgQMCBYgrBE4giEBYYjGAgY+DBY4AHBZlABZQ7DLIpTFAo5ZJLYYDFTZKzLAGQA=="));
+const closeIcon = heatshrinkDecompress(atob("jEYwhC/4AEDhgKEhnMAofMCIgGECAoHFCwwIDCw4YDCxAYCCxALMEZY7KKZZrKQZibKAHIA="));
+
+const timerState = {
+    IDLE: 0,
+    RUNNING: 1
+};
+
+let currentState = timerState.IDLE;
+let remainingSeconds = 0;
+let countdownInterval = null;
+let increasingInterval = null;
+let decreasingInterval = null;
+let isDecreasingRemainingSeconds = false;
+let isIncreasingRemainingSeconds = false;
+
+function main() {
+    g.clear();
+    g.setFont("Vector", 40);
+    g.setFontAlign(0, 0);
+
+    registerInputHandlers();
+
+    draw();
+}
+
+function registerInputHandlers() {
+    setWatch(onPrimaryButtonPressed, BTN1, { repeat: true });
+    setWatch(onResetButtonPressed, BTN2, { repeat: true });
+    setWatch(onExitButtonPressed, BTN3, { repeat: true });
+    setWatch(onDecreaseRemainingSecondsPressed, BTN4, { repeat: true, edge: "rising" });
+    setWatch(onIncreaseRemainingSecondsPressed, BTN5, { repeat: true, edge: "rising" });
+    setWatch(onDecreaseRemainingSecondsReleased, BTN4, { repeat: true, edge: "falling" });
+    setWatch(onIncreaseRemainingSecondsReleased, BTN5, { repeat: true, edge: "falling" });
+}
+
+function draw() {
+    g.clearRect(200, 0, 240, 240);
+    g.clearRect(0, 0, 240, 80);
+
+    drawRemainingSecondsPanel();
+
+    g.drawImage(resetIcon, 216, 108);
+    g.drawImage(closeIcon, 216, 188);
+
+    if (currentState == timerState.IDLE) {
+        g.drawImage(playIcon, 216, 28);
+    } else {
+        g.drawImage(pauseIcon, 216, 28);
+    }
+
+    g.flip();
+}
+
+function drawRemainingSecondsPanel() {
+    g.clearRect(0, 100, 200, 140);
+    g.drawString(formatRemainingSeconds(), 105, 120);
+
+    if (currentState == timerState.IDLE) {
+        drawSubtractRemainingSeconds();
+        drawIncreaseRemainingSeconds();
+    } else {
+        g.setColor(0.4, 0.4, 0.4);
+        drawSubtractRemainingSeconds();
+        drawIncreaseRemainingSeconds();
+        g.setColor(-1);
+    }
+}
+
+function drawSubtractRemainingSeconds() {
+    if (isDecreasingRemainingSeconds) {
+        drawFilledCircle(22, 117, 15);
+    }
+
+    g.drawString("-", 25, 120);
+}
+
+function drawIncreaseRemainingSeconds() {
+    if (isIncreasingRemainingSeconds) {
+        drawFilledCircle(182, 117, 15);
+    }
+
+    g.drawString("+", 185, 120);
+}
+
+function drawFilledCircle(x, y, radians) {
+    g.setColor(0.1, 0.37, 0.87);
+    g.fillCircle(x, y, radians);
+    g.setColor(-1);
+}
+
+function formatRemainingSeconds() {
+    const minutes = Math.floor(remainingSeconds / 60);
+    const minutesTens = Math.floor(minutes / 10);
+    const minutesUnits = minutes % 10;
+
+    const seconds = remainingSeconds % 60;
+    const secondsTens = Math.floor(seconds / 10);
+    const secondsUnits = seconds % 10;
+
+    return `${minutesTens}${minutesUnits}:${secondsTens}${secondsUnits}`;
+}
+
+function onPrimaryButtonPressed() {
+    if (isIncreasingRemainingSeconds || isDecreasingRemainingSeconds) return;
+
+    if (currentState == timerState.IDLE) {
+        if (remainingSeconds == 0) return;
+        currentState = timerState.RUNNING;
+        beginCountdown();
+        draw();
+    } else {
+        currentState = timerState.IDLE;
+        stopCountdown();
+        draw();
+    }
+}
+
+function beginCountdown() {
+    countdownInterval = setInterval(countdown, 1000);
+}
+
+function countdown() {
+    --remainingSeconds;
+
+    if (remainingSeconds <= 0) {
+        remainingSeconds = 0;
+        stopCountdown();
+    }
+
+    drawRemainingSecondsPanel();
+
+    if (remainingSeconds <= 0) {
+        drawStopMessage();
+    }
+}
+
+function drawStopMessage() {
+    draw();
+    Bangle.buzz(800);
+    g.setFont("Vector", 30);
+    g.setColor(1.0, 0.91, 0);
+    g.drawString("Time's Up!", 105, 40);
+    g.setColor(-1);
+    g.setFont("Vector", 40);
+}
+
+function stopCountdown() {
+    clearInterval(countdownInterval);
+    countdownInterval = null;
+    currentState = timerState.IDLE;
+}
+
+function onResetButtonPressed() {
+    currentState = timerState.IDLE;
+    remainingSeconds = 0;
+    draw();
+}
+
+function onExitButtonPressed() {
+    Bangle.showLauncher();
+}
+
+function onIncreaseRemainingSecondsPressed() {
+    if (currentState == timerState.RUNNING) return;
+    incremementRemainingSeconds();
+
+    increasingInterval = setInterval(() => {
+        remainingSeconds += 60;
+
+        if (remainingSeconds >= 5999) {
+            remainingSeconds = 5999;
+        }
+
+        drawRemainingSecondsPanel();
+    }, 250);
+
+    isIncreasingRemainingSeconds = true;
+
+    drawRemainingSecondsPanel();
+}
+
+function incremementRemainingSeconds() {
+    if (remainingSeconds >= 5999) return;
+    ++remainingSeconds;
+}
+
+function onIncreaseRemainingSecondsReleased() {
+    if (currentState == timerState.RUNNING) return;
+    clearInterval(increasingInterval);
+    isIncreasingRemainingSeconds = false;
+    drawRemainingSecondsPanel();
+}
+
+function onDecreaseRemainingSecondsPressed() {
+    if (currentState == timerState.RUNNING) return;
+    decreaseRemainingSeconds();
+
+    decreasingInterval = setInterval(() => {
+        remainingSeconds -= 60;
+        
+        if (remainingSeconds < 0) {
+            remainingSeconds = 0;
+        }
+
+        drawRemainingSecondsPanel();
+    }, 250);
+
+    isDecreasingRemainingSeconds = true;
+
+    drawRemainingSecondsPanel();
+}
+
+function decreaseRemainingSeconds() {
+    if (remainingSeconds <= 0) return;
+    --remainingSeconds;
+}
+
+function onDecreaseRemainingSecondsReleased() {
+    if (currentState == timerState.RUNNING) return;
+
+    clearInterval(decreasingInterval);
+
+    isDecreasingRemainingSeconds = false;
+    draw();
+}
+
+main();
--- a/apps/countdowntimer/countdowntimer.png
+++ b/apps/countdowntimer/countdowntimer.png
--- a/apps/gbridge/ChangeLog
+++ b/apps/gbridge/ChangeLog
@ -20,3 +20,4 @@
 0.18: Added reporting of step count and HRM (new Gadgetbridges can now log this)
 0.19: Support for call incoming/start/end
 0.20: Reduce memory usage
+0.21: Fix HRM setting
--- a/apps/gbridge/settings.js
+++ b/apps/gbridge/settings.js
@ -31,7 +31,7 @@
    },
    "Find Phone" : function() { E.showMenu(findPhone); },
    "Record HRM" : {
-      value: settings().hrm,
+      value: !!settings().hrm,
      format: v => v?"Yes":"No",
      onchange: v => updateSetting('hrm', v)
    },
--- a/apps/helloworld/app-icon.js
+++ b/apps/helloworld/app-icon.js
@ -1 +1 @@
-require("heatshrink").decompress(atob("mEw4kA///t0up0upsutsuIm0RiIWUgIXBiAFDC58hC4MRkA0CDgQuOJAQ0FLpoSDDYYukC4YuSC4guSCQouRC4guSR4cSFySQGFyLAFD4Z5UDo4vNJqYuJGBouJGBoNEC6iTGC54MDC6IKFC6KDFC6TsFC9zXRC5a+NPJIWKC5DfFC6QAOC7UgC6wAIEBYXLDBYXMNRQXNbJMBGC8hC6w0NJBIX/C/4XTAEw"))
+require("heatshrink").decompress(atob("mEw4MA///t0uChkD4AFDg/guAFCh/4/AFCj/xAoc/8fwAoV/4/gAoePEgd/j+AAoV+n4vDv1+Aoc//gFDj4uDHYPwjBHE/4LD4P/FQUfwf/GwU/g//IQU+Aok8h4FDnAFEwAFE4AFE/gdEAo0DGoYFCIIReBJoYFBngFEAAYFF/wFEZQIjDAoQ1CAoSuCAoSLCv4FBEwU/AoiEB/4sDAsYAJ"))
--- a/apps/hrm/ChangeLog
+++ b/apps/hrm/ChangeLog
@ -1,2 +1,3 @@
 0.01: New App!
 0.02: Use HRM data and calculations from Bangle.js (don't access hardware directly)
+0.03: Fix timing issues, and use 1/2 scale to keep graph on screen
--- a/apps/hrm/heartrate.js
+++ b/apps/hrm/heartrate.js
@ -12,7 +12,10 @@ function onHRM(h) {
  hrmInfo = h;
  hrmOffset = 0;
  if (hrmInterval) clearInterval(hrmInterval);
-  hrmInterval = setInterval(readHRM,40);
+  hrmInterval = undefined;
+  setTimeout(function() {
+    hrmInterval = setInterval(readHRM,41);
+  }, 40);

  var px = g.getWidth()/2;
  g.setFontAlign(0,0);
@ -35,7 +38,6 @@ function countDown() {
 countDown();


-var min=0,max=0;
 var wasHigh = 0, wasLow = 0;
 var lastHigh = getTime();
 var hrmList = [];
@ -51,9 +53,7 @@ function readHRM() {
  for (var i=0;i<2;i++) {
    var a = hrmInfo.raw[hrmOffset];
    hrmOffset++;
-    min=Math.min(min*0.97+a*0.03,a);
-    max=Math.max(max*0.97+a*0.03,a);
-    y = E.clip(170 - (a*4),100,230);
+    y = E.clip(170 - (a*2),100,230);
    g.setColor(1,1,1);
    g.lineTo(hrmOffset, y);
  }
--- a/apps/notify/ChangeLog
+++ b/apps/notify/ChangeLog
@ -3,3 +3,4 @@
 0.03: Pass `area{x,y,w,h}` to render callback instead of just `y`
 0.05: Adjust position of notification src text
 0.06: Support background color
+0.07: Auto-calculate height, and pad text down even when there's no title (so it stays on-screen)
--- a/apps/notify/README.md
+++ b/apps/notify/README.md
@ -10,7 +10,7 @@ other applications or widgets to display messages.
 ```JS
 options = {
  on : bool, // turn screen on, default true
-  size : int, // height of notification, default 80 (max)  
+  size : int, // height of notification, default is fit to height (80 max)  
  title : string, // optional title
  id // optional notification ID, used with hide()
  src : string, // optional source name
--- a/apps/notify/notify.js
+++ b/apps/notify/notify.js
@ -70,8 +70,18 @@ exports.show = function(options) {
  options = options || {};
  if (options.on===undefined) options.on = true;
  id = ("id" in options)?options.id:null;
-  let size = options.size || 80;
-  if (size>80) {size = 80}
+  let w = 240;
+  let text = [];
+  let size = options.size;
+  if (options.body) {
+    const bh = (size || 80) - 20,
+          maxRows=Math.floor((bh-4)/8), // font=6x8
+          maxChars=Math.floor(w/6)-2;
+    text=fitWords(options.body, maxRows, maxChars);
+    // set size based on newlines
+    if (!size) size = 28 + (text.match(/\n/g).length+1)*8;
+  } else size = 20;
+  if (size>80) size = 80;
  const oldMode = Bangle.getLCDMode();
  // TODO: throw exception if double-buffered?
  // TODO: throw exception if size>80?
@ -80,7 +90,6 @@ exports.show = function(options) {
  // drawing area
  let x = 0,
    y = 320-size,
-    w = 240,
    h = size,
    b = y+h-1, r = x+w-1; // bottom,right
  g.setClipRect(x,y, r,b);
@ -99,20 +108,18 @@ exports.show = function(options) {
      g.setFont("6x8", 1).setFontAlign(1, 1, 0);
      g.drawString(options.src.substring(0, 10), g.getWidth()-23,y+18);
    }
-    y += 20;h -= 20;
  }
+  // we always need to pad because of the curved edges of the screen
+  y += 20; h -= 20;
  if (options.icon) {
    let i = options.icon, iw;
    g.drawImage(i, x,y+4);
-    if ("string"==typeof i) {iw = i.charCodeAt(0)}
-    else {iw = i[0]}
+    if ("string"==typeof i) iw = i.charCodeAt(0);
+    else iw = i[0];
    x += iw;w -= iw;
  }
  // body text
  if (options.body) {
-    const maxRows=Math.floor((h-4)/8), // font=6x8
-      maxChars=Math.floor(w/6)-2,
-      text=fitWords(options.body, maxRows, maxChars);
    g.setColor(-1).setFont("6x8", 1).setFontAlign(-1, -1, 0).drawString(text, x+6,y+4);
  }

@ -133,7 +140,7 @@ exports.show = function(options) {
  }
  anim();
  Bangle.on("touch", exports.hide);
-}
+};

 /**
 options = {
@ -152,4 +159,4 @@ exports.hide = function(options) {
    if (pos < 0) setTimeout(anim, 10);
  }
  anim();
-}
+};
--- a/apps/walkersclock/ChangeLog
+++ b/apps/walkersclock/ChangeLog
@ -1,2 +1,3 @@
 0.01: First version of the Walkers Clock
 0.02: Fixed screen flicker
+0.03: Added display of GPS fix lat/lon and course
--- a/apps/walkersclock/app.js
+++ b/apps/walkersclock/app.js
@ -34,8 +34,10 @@ const GPS_SATS = "gps_sats";
 const GPS_RUNNING = "gps_running";

 const GDISP_OS = "g_osref";
+const GDISP_LATLN = "g_latln";
 const GDISP_SPEED = "g_speed";
 const GDISP_ALT = "g_alt";
+const GDISP_COURSE = "g_course";

 const Y_TIME = 40;
 const Y_ACTIVITY = 120;
@ -138,14 +140,21 @@ function drawActivity() {
    case GDISP_OS:
      activityStr = ref;
      break;
+    case GDISP_LATLN:
+      g.setFontVector(26);
+      activityStr = last_fix.lat.toFixed(4) + ", " + last_fix.lon.toFixed(4);
+      break;
    case GDISP_SPEED:
      speed = last_fix.speed;
      speed = speed.toFixed(1);
-      activityStr = speed + "kph" 
+      activityStr = speed + "kph"; 
      break;
    case GDISP_ALT:
      activityStr = last_fix.alt + "m";
      break;
+    case GDISP_COURSE:
+      activityStr = last_fix.course;
+      break;
    }

    g.clearRect(0, Y_ACTIVITY, 239, Y_MODELINE - 1);
@ -203,12 +212,18 @@ function drawInfo() {
    case GDISP_OS:
      str = "GPS: Grid";
      break;
+    case GDISP_LATLN:
+      str = "GPS: Lat,Lon";
+      break;
    case GDISP_SPEED:
      str = "GPS: Speed";
      break;
    case GDISP_ALT:
      str = "GPS: Alt";
      break;
+    case GDISP_COURSE:
+      str = "GPS: Course";
+      break;
    }
    drawModeLine(str,col);
    return;
@ -280,6 +295,12 @@ function changeInfoMode() {
      gpsDisplay = GDISP_ALT;
      break;
    case GDISP_ALT:
+      gpsDisplay = GDISP_COURSE;
+      break;
+    case GDISP_COURSE:
+      gpsDisplay = GDISP_LATLN;
+      break;
+    case GDISP_LATLN:
    default:
      gpsDisplay = GDISP_OS;
      break;
--- a/apps/waypointer/README.md
+++ b/apps/waypointer/README.md
@ -0,0 +1,176 @@
+# Waypointer - navigate to waypoints
+
+The app is aimed at navigation whilst walking. Please note that it
+would be foolish in the extreme to rely on this as your only
+navigation aid!
+
+Please refer to the section on calibration of the compass.  This
+should be done each time the app is going to be used.
+
+The main part of the display is a compass arrow that points in the
+direction you need to walk in. Once you have selected a waypoint a
+bearing from your current position (received from a GPS fix) is
+calculated and the compass is set to point in that direction.  If the
+arrow is pointing to the left, turning left should straighten the arrow
+up so that it is pointing straight ahead.
+
+
+![](waypointer_screenshot.jpg)
+
+The large digits are the bearing from the current position. On the
+left is the distance to the waypoint in local units. The top of the
+display is a circular compass which displays the direction you will
+need to travel in to reach the selected waypoint. The blue text is
+the name of the current waypoint. NONE means that there is no
+waypoint set and so bearing and distance will remain at 0. To select
+a waypoint, press BTN2 (middle) and wait for the blue text to turn
+white. Then use BTN1 and BTN3 to select a waypoint. The waypoint
+choice is fixed by pressing BTN2 again. In the screen shot below a
+waypoint giving the location of Stone Henge has been selected.
+
+The screenshot above shows that Stone Henge is 259.9 miles from the
+current location. To travel towards Stone Henge I need to turn
+slightly left until the arrow is pointing straight ahead. As you
+continue to walk in the pointed direction you should see the distance
+to the waypoint reduce.  The frequency of updates will depend on
+which settings you have used in the GPS.
+
+At the top of the screen you can see two widgets.  These are the [GPS
+Power
+Widget](https://github.com/espruino/BangleApps/tree/master/apps/widgps)
+and the [Compass Power Indicator Widget]. These can be installed
+seperately and provide you a indication of when the GPS and Compass
+are switched on and drawing power.
+
+
+## Marking Waypoints
+
+The app lets you mark your current location as follows. There are
+vacant slots in the waypoint file which can be allocated a
+location. In the distributed waypoint file these are labelled WP0 to
+WP4. Select one of these - WP2 is shown below.
+
+![](wp2_screenshot.jpg)
+
+Bearing and distance are both zero as WP2 has currently no GPS
+location associated with it. To mark the location, press BTN2.
+
+![](wp2_saved.jpg)
+
+The app indicates that WP2 is now marked by adding the prefix @ to
+it's name. The distance should be small as shown in the screen shot
+as you have just marked your current location.
+
+## Waypoint JSON file
+
+When the app is loaded from the app loader, a file named
+`waypoints.json` is loaded along with the javascript etc. The file
+has the following contents:
+
+
+```
+[
+  {
+  "name":"NONE"
+  },
+  {
+  "name":"No10",
+  "lat":51.5032,
+  "lon":-0.1269
+  },
+  {
+  "name":"Stone",
+  "lat":51.1788,
+  "lon":-1.8260
+  },
+  { "name":"WP0" },
+  { "name":"WP1" },
+  { "name":"WP2" },
+  { "name":"WP3" },
+  { "name":"WP4" }
+]
+```
+
+The file contains the initial NONE waypoint which is useful if you
+just want to display course and speed. The next two entries are
+waypoints to No 10 Downing Street and to Stone Henge - obtained from
+Google Maps. The last five entries are entries which can be *marked*.
+
+You add and delete entries using the Web IDE to load and then save
+the file from and to watch storage. The app itself does not limit the
+number of entries although it does load the entire file into RAM
+which will obviously limit this.
+
+
+## Waypoint Editor
+
+Clicking on the download icon of gpsnav in the app loader invokes the
+waypoint editor.  The editor downloads and displays the current
+`waypoints.json` file. Clicking the `Edit` button beside an entry
+causes the entry to be deleted from the list and displayed in the
+edit boxes. It can be restored - by clicking the `Add waypoint`
+button. A new markable entry is created by using the `Add name`
+button. The edited `waypoints.json` file is uploaded to the Bangle by
+clicking the `Upload` button.
+
+
+## Calibration of the Compass
+
+The Compass should be calibrated before using the App to navigate to
+a waypoint (or a series of waypoints).  To do this use either the
+Arrow Compass or the [Navigation
+Compass](https://github.com/espruino/BangleApps/tree/master/apps/magnav).
+Open the compass app and clicking on BTN3.  The calibration process
+takes 30 seconds during which you should move the watch slowly
+through figures of 8. It is important that during calibration the
+watch is fully rotated around each of it axes. If the app does give
+the correct direction heading or is not stable with respect to tilt
+and roll - redo the calibration by pressing *BTN3*. Calibration data
+is recorded in a storage file named `magnav.json`.
+
+
+## Advantages and Disadvantages
+
+This approach has some advantages and disadvantages.  First following
+the arrow is fairly easy to do and once the bearing has been
+established it does not matter if there is not another GPS fix for a
+while as the compass will continue to point in the general direction.
+Second the GPS will only supply a course to the waypoint (a bearing)
+once you are travelling above 8m/s or 28kph.  This is not a practical
+walking speed. 5kmph is considered a marching pace.
+
+One disadvantage is that the compass is not very accurate.  I have
+observed it being 20-30 degrees off when compared to a hiking
+compass.  Sometime its is necessary to walk in the opposite direction
+for a bit to establish the correct direction to go in.  The accuracy
+of the compass is impacted by the magnetic clamps on the charging
+cable, so it is particularly important that you recalibtrate the
+compass after the watch has been charged.  That said I have found I
+am successfully able to follow a chain of waypoints as a route.
+
+
+## Possible Future Enhancements
+
+- Buzz when the GPS establishes its first fix.
+
+- Add a small LED to show the status of the GPS during the phase of
+  establishing a first fix.
+
+- Add an option to calibrate the Compass without having to use the
+  Arrow Compass or the Navigation Compass.
+
+- Investigate the accuracy of the Compass and how it changes
+  throughout the day after the watch battery has been fully charged.
+
+- Investigate the possibility of setting the GPS in low speed mode so
+  that a current course value can be obtained.
+
+- Buzz when you arrive within 20m of a waypoint to signify arrival
+
+
+## Acknowledgements
+
+The majority of the code in this application is a merge of
+[jeffmer's](https://github.com/jeffmer/JeffsBangleAppsDev) GPS
+Navigation and Compass Navigation Applications.
+
--- a/apps/waypointer/app.js
+++ b/apps/waypointer/app.js
@ -0,0 +1,283 @@
+var pal_by = new Uint16Array([0x0000,0xFFC0],0,1); // black, yellow
+var pal_bw = new Uint16Array([0x0000,0xffff],0,1);  // black, white
+var pal_bb = new Uint16Array([0x0000,0x07ff],0,1); // black, blue
+
+// having 3 2 color pallette keeps the memory requirement lower
+var buf1 = Graphics.createArrayBuffer(160,160,1, {msb:true});
+var buf2 = Graphics.createArrayBuffer(80,40,1, {msb:true});
+var arrow_img = require("heatshrink").decompress(atob("lEowIPMjAEDngEDvwED/4DCgP/wAEBgf/4AEBg//8AEBh//+AEBj///AEBn///gEBv///wmCAAImCAAIoBFggE/AkaaEABo="));
+
+function flip1(x,y) {
+  g.drawImage({width:160,height:160,bpp:1,buffer:buf1.buffer, palette:pal_by},x,y);
+  buf1.clear();
+}
+
+function flip2_bw(x,y) {
+  g.drawImage({width:80,height:40,bpp:1,buffer:buf2.buffer, palette:pal_bw},x,y);
+  buf2.clear();
+}
+
+function flip2_bb(x,y) {
+  g.drawImage({width:80,height:40,bpp:1,buffer:buf2.buffer, palette:pal_bb},x,y);
+  buf2.clear();
+}
+
+var candraw = true;
+var wp_bearing = 0;
+var direction = 0;
+var wpindex=0;
+var loc = require("locale");
+var selected = false;
+
+var previous = {
+  bs: '',
+  dst: '',
+  wp_name: '',
+  course: 0,
+  selected: false,
+};
+
+// clear the attributes that control the display refresh
+function clear_previous() {
+  previous.bs = '-';
+  previous.dst = '-';
+  previous.wp_name = '-';
+  previous.course = -999;
+}
+
+function drawCompass(course) {
+  if(!candraw) return;
+  if (Math.abs(previous.course - course) < 9) return; // reduce number of draws due to compass jitter
+  previous.course = course;
+  
+  buf1.setColor(1);
+  buf1.fillCircle(80,80,79,79);
+  buf1.setColor(0);
+  buf1.fillCircle(80,80,69,69);
+  buf1.setColor(1);
+  buf1.drawImage(arrow_img, 80, 80, {scale:3,  rotate:radians(course)} );
+  flip1(40, 30);
+}
+
+/***** COMPASS CODE ***********/
+
+var heading = 0;
+function newHeading(m,h){ 
+    var s = Math.abs(m - h);
+    var delta = (m>h)?1:-1;
+    if (s>=180){s=360-s; delta = -delta;} 
+    if (s<2) return h;
+    var hd = h + delta*(1 + Math.round(s/5));
+    if (hd<0) hd+=360;
+    if (hd>360)hd-= 360;
+    return hd;
+}
+
+var CALIBDATA = require("Storage").readJSON("magnav.json",1)||null;
+
+function tiltfixread(O,S){
+  var start = Date.now();
+  var m = Bangle.getCompass();
+  var g = Bangle.getAccel();
+  m.dx =(m.x-O.x)*S.x; m.dy=(m.y-O.y)*S.y; m.dz=(m.z-O.z)*S.z;
+  var d = Math.atan2(-m.dx,m.dy)*180/Math.PI;
+  if (d<0) d+=360;
+  var phi = Math.atan(-g.x/-g.z);
+  var cosphi = Math.cos(phi), sinphi = Math.sin(phi);
+  var theta = Math.atan(-g.y/(-g.x*sinphi-g.z*cosphi));
+  var costheta = Math.cos(theta), sintheta = Math.sin(theta);
+  var xh = m.dy*costheta + m.dx*sinphi*sintheta + m.dz*cosphi*sintheta;
+  var yh = m.dz*sinphi - m.dx*cosphi;
+  var psi = Math.atan2(yh,xh)*180/Math.PI;
+  if (psi<0) psi+=360;
+  return psi;
+}
+
+// Note actual mag is 360-m, error in firmware
+function read_compass() {
+  var d = tiltfixread(CALIBDATA.offset,CALIBDATA.scale);
+  heading = newHeading(d,heading);
+  direction = wp_bearing - heading;
+  if (direction < 0) direction += 360;
+  if (direction > 360) direction -= 360;
+  drawCompass(direction);
+}
+
+
+/***** END Compass ***********/
+
+var speed = 0;
+var satellites = 0;
+var wp;
+var dist=0;
+
+function radians(a) {
+  return a*Math.PI/180;
+}
+
+function degrees(a) {
+  var d = a*180/Math.PI;
+  return (d+360)%360;
+}
+
+function bearing(a,b){
+  var delta = radians(b.lon-a.lon);
+  var alat = radians(a.lat);
+  var blat = radians(b.lat);
+  var y = Math.sin(delta) * Math.cos(blat);
+  var x = Math.cos(alat)*Math.sin(blat) -
+        Math.sin(alat)*Math.cos(blat)*Math.cos(delta);
+  return Math.round(degrees(Math.atan2(y, x)));
+}
+
+function distance(a,b){
+  var x = radians(a.lon-b.lon) * Math.cos(radians((a.lat+b.lat)/2));
+  var y = radians(b.lat-a.lat);
+  return Math.round(Math.sqrt(x*x + y*y) * 6371000);
+}
+
+
+function drawN(){
+  buf2.setFont("Vector",24);
+  var bs = wp_bearing.toString();
+  bs = wp_bearing<10?"00"+bs : wp_bearing<100 ?"0"+bs : bs;
+  var dst = loc.distance(dist);
+  
+  // -1=left (default), 0=center, 1=right
+  
+  // show distance on the left
+  if (previous.dst !== dst) {
+    previous.dst = dst
+    buf2.setColor(1);
+    buf2.setFontAlign(-1,-1);
+    buf2.setFont("Vector", 20);
+    buf2.drawString(dst,0,0);
+    flip2_bw(0, 200);
+  }
+  
+  // bearing, place in middle at bottom of compass
+  if (previous.bs !== bs) {
+    previous.bs = bs;
+    buf2.setColor(1);
+    buf2.setFontAlign(0, -1);
+    buf2.setFont("Vector",38);
+    buf2.drawString(bs,40,0);
+    flip2_bw(80, 200);
+  }
+
+  // waypoint name on right
+  if (previous.wp_name !== wp.name || previous.selected !== selected) {
+    previous.selected = selected;
+    buf2.setColor(1);
+    buf2.setFontAlign(1,-1);     // right, bottom
+    buf2.setFont("Vector", 20);
+    buf2.drawString(wp.name, 80, 0);
+
+    if (selected)
+      flip2_bw(160, 200);
+    else
+      flip2_bb(160, 200);
+  }
+}
+
+var savedfix;
+
+function onGPS(fix) {
+  savedfix = fix;
+  if (fix!==undefined){
+    satellites = fix.satellites;
+  }
+  
+  if (candraw) {
+    if (fix!==undefined && fix.fix==1){
+      dist = distance(fix,wp);
+      if (isNaN(dist)) dist = 0;
+      wp_bearing = bearing(fix,wp);
+      if (isNaN(wp_bearing)) wp_bearing = 0;
+      drawN();
+    }
+  }
+}
+
+var intervalRef;
+
+function stopdraw() {
+  candraw=false;
+  prev_course = -1;
+  if(intervalRef) {clearInterval(intervalRef);}
+}
+
+function startTimers() {
+  candraw=true;
+  intervalRefSec = setInterval(function() {
+    read_compass();
+  }, 500);
+}
+
+function drawAll(){
+  g.setColor(1,1,1);
+  drawN();
+  drawCompass(direction);
+}
+
+function startdraw(){
+  g.clear();
+  Bangle.drawWidgets();
+  startTimers();
+  candraw=true;
+  drawAll();
+}
+
+function setButtons(){
+  setWatch(nextwp.bind(null,-1), BTN1, {repeat:true,edge:"falling"});
+  setWatch(doselect, BTN2, {repeat:true,edge:"falling"});
+  setWatch(nextwp.bind(null,1), BTN3, {repeat:true,edge:"falling"});
+}
+ 
+Bangle.on('lcdPower',function(on) {
+  if (on) {
+    clear_previous();
+    startdraw();
+  } else {
+    stopdraw();
+  }
+});
+
+var waypoints = require("Storage").readJSON("waypoints.json")||[{name:"NONE"}];
+wp=waypoints[0];
+
+function nextwp(inc){
+  if (!selected) return;
+  wpindex+=inc;
+  if (wpindex>=waypoints.length) wpindex=0;
+  if (wpindex<0) wpindex = waypoints.length-1;
+  wp = waypoints[wpindex];
+  drawN();
+}
+
+function doselect(){
+  if (selected && wpindex!=0 && waypoints[wpindex].lat===undefined && savedfix.fix) {
+     waypoints[wpindex] ={name:"@"+wp.name, lat:savedfix.lat, lon:savedfix.lon};
+     wp = waypoints[wpindex];
+     require("Storage").writeJSON("waypoints.json", waypoints);
+  }
+  selected=!selected;
+  drawN();
+}
+
+Bangle.on('kill',()=>{
+  Bangle.setCompassPower(0);
+  Bangle.setGPSPower(0);
+});
+
+g.clear();
+Bangle.setLCDBrightness(1);
+Bangle.loadWidgets();
+Bangle.drawWidgets();
+// load widgets can turn off GPS
+Bangle.setGPSPower(1);
+Bangle.setCompassPower(1);
+drawAll();
+startTimers();
+Bangle.on('GPS', onGPS);
+setButtons();
--- a/apps/waypointer/icon.js
+++ b/apps/waypointer/icon.js
@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEwwhC/AFcBiAWViMRDCkBiUhC68RC64AFGxsRC4UiAAY2HOAQAEC4MSn//AAXzGAwWGC4czC4f/mIwEFwIlEBoIXDBQnyGAkRiYWE/8yLAIXBGAhgEFw5WBC4R0BkYaBmRfFF44XCNI6OGGAQlBAAIXIX4yPJaBq/JC5oeHC/4X/C/4X/C/4X/C/4X/C88RiIXUDAIWVAH4AVA="))
--- a/apps/waypointer/waypointer.png
+++ b/apps/waypointer/waypointer.png
--- a/apps/waypointer/waypointer_screenshot.jpg
+++ b/apps/waypointer/waypointer_screenshot.jpg
--- a/apps/waypointer/waypoints.html
+++ b/apps/waypointer/waypoints.html
@ -0,0 +1,170 @@
+<html>
+  <head>
+    <link rel="stylesheet" href="../../css/spectre.min.css">
+    <link rel="stylesheet" href="../../css/spectre-icons.min.css">
+  </head>
+  <body>
+
+    <h4>List of waypoints</h4>
+    <table class="table">
+      <thead>
+        <tr>
+          <th>Name</th>
+          <th>Lat.</th>
+          <th>Long.</th>
+          <th>Actions</th>
+        </tr>
+      </thead>
+      <tbody id="waypoints">
+        
+      </tbody>
+    </table>
+    <br>
+    <h4>Add a new waypoint</h4>
+    <form id="add_waypoint_form">
+      <div class="columns">
+        <div class="column col-3 col-xs-8">
+          <input class="form-input input-sm" type="text" id="add_waypoint_name" placeholder="Name">
+        </div>
+        <div class="column col-3 col-xs-8">
+          <input class="form-input input-sm" value="0.0000" type="number" step="any" id="add_latitude" placeholder="Lat">
+        </div>
+        <div class="column col-3 col-xs-8">
+          <input class="form-input input-sm" value="0.0000" type="number" step="any" id="add_longtitude" placeholder="Long">
+        </div>
+      </div>
+      <div class="columns">
+        <div class="column col-3 col-xs-8">
+          <button id="add_name_button" class="btn btn-primary btn-sm">Add Name Only</button>
+        </div>
+        <div class="column col-3 col-xs-8">
+          <button id="add_waypoint_button" class="btn btn-primary btn-sm">Add Waypoint</button>
+        </div>
+      </div>
+    </form>
+    <br>
+    <button id="Download" class="btn btn-error">Reload</button> <button id="Upload" class="btn btn-primary">Upload</button>
+    
+    <script src="../../core/lib/interface.js"></script>
+
+    <script>
+
+      var waypoints = []
+
+      var $name = document.getElementById('add_waypoint_name')
+      var $form = document.getElementById('add_waypoint_form')
+      var $button = document.getElementById('add_waypoint_button')
+      var $name_button = document.getElementById('add_name_button')
+      var $latitude = document.getElementById('add_latitude')
+      var $longtitude = document.getElementById('add_longtitude')
+      var $list = document.getElementById('waypoints')
+
+      function compare(a, b){
+            var x = a.name.toLowerCase();
+            var y = b.name.toLowerCase();
+            if (x=="none") {return -1};
+            if (y=="none") {return 1};
+            if (x < y) {return -1;}
+            if (x > y) {return 1;}
+            return 0;
+        }
+
+      $button.addEventListener('click', event => {
+        event.preventDefault()       
+        var name = $name.value.trim()
+        if(!name) return;
+        var lat = parseFloat($latitude.value).toPrecision(5);
+        var lon = parseFloat($longtitude.value).toPrecision(5);
+
+        waypoints.push({
+          name, lat,lon,
+        });
+        
+        waypoints.sort(compare);
+
+        renderWaypoints()
+        $name.value = ''
+        $latitude.value = (0).toPrecision(5);
+        $longtitude.value = (0).toPrecision(5);
+      });
+
+      $name_button.addEventListener('click', event => {
+        event.preventDefault()       
+        var name = $name.value.trim()
+        if(!name) return;
+
+        waypoints.push({
+          name
+        });
+        waypoints.sort(compare);
+
+        renderWaypoints()
+        $name.value = ''
+        $latitude.value = 0.0000
+        $longtitude.value = 0.0000
+      });
+
+
+      function removeWaypoint(index){
+        $name.value = waypoints[index].name
+        $latitude.value = waypoints[index].lat
+        $longtitude.value = waypoints[index].lon
+        waypoints = waypoints.filter((p,i) => i!==index)
+        renderWaypoints()
+      }
+
+      function renderWaypoints(){
+        $list.innerHTML = ''
+        waypoints.forEach((waypoint,index) => {
+          var $waypoint = document.createElement('tr')  
+          if (index==0){
+              $waypoint.innerHTML = `<td>${waypoint.name}</td>`
+          } else if(waypoint.lat==undefined){
+          $waypoint.innerHTML = `<td>${waypoint.name}</td><td>------</td><td>-----</td><td><button class="btn btn-action btn-primary" onclick="removeWaypoint(${index})"><i class="icon icon-edit"></i></button></td>`
+          } else {
+          $waypoint.innerHTML = `<td>${waypoint.name}</td><td>${waypoint.lat}</td><td>${waypoint.lon}</td><td><button class="btn btn-action btn-primary" onclick="removeWaypoint(${index})"><i class="icon icon-edit"></i></button></td>`
+          }
+          $list.appendChild($waypoint)
+        })
+        $name.focus()    
+      }
+
+      function downloadJSONfile(fileid, callback) {
+        Puck.write(`\x10(function() {
+          var pts = require("Storage").readJSON("${fileid}")||[{name:"NONE"}];
+          Bluetooth.print(JSON.stringify(pts));
+         })()\n`,contents=>{
+              var storedpts = JSON.parse(contents);
+              callback(storedpts);
+        });
+      }
+
+      function uploadFile(fileid, contents) {      
+        Puck.write(`\x10(function() {
+          require("Storage").write("${fileid}",'${contents}');
+          Bluetooth.print("OK");
+         })()\n`,ret=>{
+            console.log("uploadFile",ret);
+        });
+      }
+
+      function gotStored(pts){
+          waypoints = pts;
+          renderWaypoints();
+      }
+
+      function onInit() {
+         downloadJSONfile("waypoints.json", gotStored);
+      }
+
+      document.getElementById("Download").addEventListener("click", function() {
+        downloadJSONfile("waypoints.json", gotStored);
+      });
+
+      document.getElementById("Upload").addEventListener("click", function() {
+        var data =  JSON.stringify(waypoints);
+        uploadFile("waypoints.json",data); 
+      });
+    </script>
+  </body>
+</html>
--- a/apps/waypointer/waypoints.json
+++ b/apps/waypointer/waypoints.json
@ -0,0 +1,20 @@
+[
+  {
+  "name":"NONE"
+  },
+  {
+  "name":"No10",
+  "lat":51.5032,
+  "lon":-0.1269
+  },
+  {
+  "name":"Stone",
+  "lat":51.1788,
+  "lon":-1.8260
+  },
+  { "name":"WP0" },
+  { "name":"WP1" },
+  { "name":"WP2" },
+  { "name":"WP3" },
+  { "name":"WP4" }
+]
--- a/apps/waypointer/wp2_saved.jpg
+++ b/apps/waypointer/wp2_saved.jpg
--- a/apps/waypointer/wp2_screenshot.jpg
+++ b/apps/waypointer/wp2_screenshot.jpg
--- a/apps/widcom/README.md
+++ b/apps/widcom/README.md
@ -0,0 +1,11 @@
+# Compass Power Status Widget
+
+A simple widget that shows the on/off status of the compass.
+
+The compass draws around 1mA when on.  Whilst this is not a big draw
+on the battery it is still easy to have it switched on and not be
+aware.
+
+- Uses Bangle.isCompassOn(), requires firmware v2.08.167 or later
+- Shows in grey when the compass is off
+- Shows in amber when the compass is on
--- a/apps/widcom/widget.js
+++ b/apps/widcom/widget.js
@ -0,0 +1,30 @@
+(function(){
+  //var img = E.toArrayBuffer(atob("FBSBAAAAAAAAA/wAf+AP/wH/2D/zw/w8PwfD9nw+b8Pg/Dw/w8/8G/+A//AH/gA/wAAAAAAA"));
+  //var img = E.toArrayBuffer(atob("GBiBAAB+AAP/wAeB4A4AcBgAGDAADHAADmABhmAHhsAfA8A/A8BmA8BmA8D8A8D4A2HgBmGABnAADjAADBgAGA4AcAeB4AP/wAB+AA=="));
+  var img = E.toArrayBuffer(atob("FBSBAAH4AH/gHAODgBwwAMYABkAMLAPDwPg8CYPBkDwfA8PANDACYABjAAw4AcHAOAf+AB+A"));        
+  
+  function draw() {
+    g.reset();
+    if (Bangle.isCompassOn()) {
+      g.setColor(1,0.8,0);     // on = amber
+    } else {
+      g.setColor(0.3,0.3,0.3); // off = grey
+    }
+    g.drawImage(img, 10+this.x, 2+this.var);
+  }
+
+  var timerInterval;
+  Bangle.on('lcdPower', function(on) {
+    if (on) {
+      WIDGETS.compass.draw();
+      if (!timerInterval) timerInterval = setInterval(()=>WIDGETS.compass.draw(), 2000);
+    } else {
+      if (timerInterval) {
+        clearInterval(timerInterval);
+        timerInterval = undefined;
+      }
+    }
+  });
+
+  WIDGETS.compass={area:"tr",width:24,draw:draw};
+})();
--- a/apps/widcom/widget.png
+++ b/apps/widcom/widget.png
--- a/bin/sanitycheck.js
+++ b/bin/sanitycheck.js
@ -229,7 +229,7 @@ while(fileA=allFiles.pop()) {
    if (globA.test(nameB)||globB.test(nameA)) {
      if (isGlob(nameA)||isGlob(nameB))
        ERROR(`App ${fileB.app} ${typeB} file ${nameB} matches app ${fileA.app} ${typeB} file ${nameA}`)
-      else ERROR(`App ${fileB.app} ${typeB} file ${nameB} is also listed as ${typeA} file for app ${fileA.app}`)
+      else WARN(`App ${fileB.app} ${typeB} file ${nameB} is also listed as ${typeA} file for app ${fileA.app}`)
    }
  })
 }
				`@ -0,0 +1 @@`
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				`@ -0,0 +1 @@`
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