diff --git a/apps/tinyVario/app.js b/apps/tinyVario/app.js
index 4f654fa1f..31f00307d 100644
--- a/apps/tinyVario/app.js
+++ b/apps/tinyVario/app.js
@@ -1,22 +1,28 @@
 /*
 To do:
-  -setup page
-  -different units
   -flight log
   -statistics page
-  -nav page
+  -navigation
 */
-Bangle.setBarometerPower(true, "tinyVario");
-Bangle.setGPSPower(true, "tinyVario");
+
+getAltitude = (p,baseP) => (44330 * (1.0 - Math.pow(p/baseP, 0.1903)));
+getFL = () => (44330 * (1.0 - Math.pow(pressure/1013.25, 0.1903))).toFixed(0);
+getTimeString = () => (settings.localTime) ? (require("locale").time(Date(),1)):(Date().toUTCString().slice(Date().toUTCString().length-12,Date().toUTCString().length-7));
+takeoff = () => {takeoffTime=Date().getTime(); flying=true; landed=false;};
+land = () => {landingTime=Date().getTime(); flying=false; landed=true;};
+
+var fg=g.getColor();
+var bg=g.getBgColor();
+var red="#F00",green="#0F0";
 
 const unitsRoc=[
   {name:"m/s", factor:1, precision:1, layoutCode:{type:"v", halign:1, c: [
             {type:"txt", font:"12%", halign:0, filly:0, label:"m"},
-            {type:"", height:1,width:"20", bgCol:"#FFF"},
+            {type:"", height:1,width:"20", bgCol:fg},
             {type:"txt", font:"12%", halign:0, filly:0, label:"s"}]}},
   {name:"ft/m", factor:196.85039370078738, precision:0, layoutCode:{type:"v", halign:1, c: [
             {type:"txt", font:"12%", halign:0, filly:0, label:"ft"},
-            {type:"", height:1,width:"30", bgCol:"#FFF"},
+            {type:"", height:1,width:"30", bgCol:fg},
             {type:"txt", font:"12%", halign:0, filly:0, label:"min"}]}},
   {name:"kt", factor:1.9438444924406, precision:1, layoutCode:
             {type:"txt", font:"12%", halign:0, filly:0, label:"kt"}}
@@ -25,12 +31,12 @@ const unitsRoc=[
 const unitsGs=[
   {name:"km/h", factor:1, precision:1, layoutCode:{type:"v", halign:1, c: [
             {type:"txt", font:"12%", halign:0, filly:0, label:"km"},
-            {type:"", height:1,width:"30", bgCol:"#FFF"},
+            {type:"", height:1,width:"30", bgCol:fg},
             {type:"txt", font:"12%", halign:0, filly:0, label:"h"}]}},
-  {name:"kt", factor:196.85039370078738, precision:0, layoutCode:{type:"txt", font:"12%", halign:0, filly:0, label:"kt"}},
+  {name:"kt", factor:0.5399568, precision:0, layoutCode:{type:"txt", font:"12%", halign:0, filly:0, label:"kt"}},
   {name:"m/s", factor:0.2777777777777778, precision:1, layoutCode:{type:"v", halign:1, c: [
             {type:"txt", font:"12%", halign:0, filly:0, label:"m"},
-            {type:"", height:1,width:"20", bgCol:"#FFF"},
+            {type:"", height:1,width:"20", bgCol:fg},
             {type:"txt", font:"12%", halign:0, filly:0, label:"s"}]}}
   ];
 
@@ -39,165 +45,409 @@ const unitsAlt=[
   {name:"ft", factor:3.280839895013123, precision:0, layoutCode:{type:"txt", font:"12%", halign:0, filly:0, label:"ft"}}
   ];
 
-var intTime=10,pressureInterval=100;
-var altH = [];
-var altFast=-10000, altSlow=0;
-var fastGain=0.2, slowGain=0.168;
-var roc=2,rocAvg=0;
-var gs;
-var lastPressure = Date.now();
-var flying=false;
-var takeoffTime, flyingTime;
-var Layout = require("Layout");
-var speedUnit="km/h", speedFactor=1;
-var altUnit="m", altFactor=1;
-var rocUnit=unitsRoc[0];
-var altUnit=unitsAlt[0];
-var gsUnit=unitsGs[0];
-
-function drawVario() {
-  var p = pfd.vario;
-  g.reset();
-  g.clearRect(p.x,p.y,p.x+p.w-1,p.y+p.h-1);
-  if (roc>0.1) g.setColor(0,1,0);
-  if (roc<-1) g.setColor(1,0,0);
-  var y=p.y+p.h/2-roc*(p.h/2)/5;
-  g.fillRect(p.x,p.y+(p.h/2),p.x+p.w-1,Math.clip(y,p.y,p.y+p.h-1));
-}
-
-function updateText(t) {
-  if (t.halign==1) 
-    g.setFont(t.font).setFontAlign(1,0,0).drawString(t.label, t.x+t.w, t.y+(t.h>>1));
-  else if (t.halign==-1)
-    g.setFont(t.font).setFontAlign(-1,0,0).drawString(t.label, t.x, t.y+(t.h>>1));
-  else 
-    g.setFont(t.font).setFontAlign(0,0,0).drawString(t.label, t.x+(t.w>>1), t.y+(t.h>>1));
-}
-
-unitROC={type:"v", halign:1, c: [
+const unitROC={type:"v", halign:1, c: [
             {type:"txt", font:"12%", halign:0, filly:0, label:"m"},
-            {type:"", height:1,width:"20", bgCol:"#FFF"},
+            {type:"", height:1,width:"20", bgCol:fg},
             {type:"txt", font:"12%", halign:0, filly:0, label:"s"}
           ]};
 
-var pfd = new Layout(
-  {type:"v",c: [
-    {type:"h",c: [
-      {type:"", fillx:1, height:"1"}
-      ]},
-    {type:"h", c: [
-      /*{type:"v", c:[
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"},
-        {type:"", filly:1},
-        {type:"", width:"3", height:"3", bgCol:"#FFF"}
-      ]},*/
-      {type:"custom", width:"25", render:drawVario, id:"vario",filly:1 },
-      {type:"", filly:1, width:1, bgCol:"#FFF"},
-      {type:"v",fillx:1, c: [
-        {type:"h", halign:1, c:[
-          {type:"txt",font:"22%", halign:1, filly:1, label:"19999", id:"alt"},
-          altUnit.layoutCode 
-        ]},
-        {type:"", fillx:1, height:"1", bgCol:"#FFF"},
-        {type:"h", halign:1, c:[
-          {type:"txt", font:"25%", halign:1, filly:1, label:"-99.9", id:"avg" },
-          rocUnit.layoutCode
-        ]},
-        {type:"", fillx:1, height:"1", bgCol:"#FFF"},
-        {type:"h", halign:1, c:[
-          {type:"txt", font:"25%", halign:1, filly:1, label:"XXX", id:"gs" },
-          gsUnit.layoutCode
+var settings = Object.assign({
+  rocU: 0,
+  altU: 0,
+  gsU:0,
+  intTime:10,
+  localTime:true,
+  autoDetect:1
+}, require('Storage').readJSON("tinyVario.json", true) || {});
+
+var qnh=Math.floor(Bangle.getOptions().seaLevelPressure);
+var pfdHandle;
+var rawP=0, samples=0;
+var altH = [];
+var altRaw=-9999, altFast=0, altSlow=0;
+var fastGain=0.5, slowGain=0.3;
+var roc=0,rocAvg=0, gs;
+var lastPressure = Date.now();
+var pressure = 1000;
+var flying=false, landed=false;
+var takeoffTime, landingTime, flyingTime;
+var Layout = require("Layout");
+var oldSettings;
+
+
+function updateText(t) {
+  g.clearRect(t.x,t.y,t.x+t.w-1,t.y+t.h-1);
+  if (t.col) g.setColor(t.col);
+  else g.setColor(fg);
+  if (t.halign==1)
+    g.setFont(t.font).setFontAlign(1,0,0).drawString(t.label, t.x+t.w, t.y+(t.h>>1));
+  else if (t.halign==-1)
+    g.setFont(t.font).setFontAlign(-1,0,0).drawString(t.label, t.x, t.y+(t.h>>1));
+  else
+    g.setFont(t.font).setFontAlign(0,0,0).drawString(t.label, t.x+(t.w>>1), t.y+(t.h>>1));
+}
+
+function initPFD() {
+  Bangle.setUI();
+  var pfd = new Layout(
+    {type:"v",c: [
+      /*{type:"h",c: [
+        {type:"", fillx:1, height:"1"}
+        ]},*/
+      {type:"h",filly:1, c: [
+        {type:"custom", width:"25", render:()=>{
+          var p = pfd.vario;
+          g.reset();
+          g.clearRect(p.x,p.y,p.x+p.w-1,p.y+p.h-1);
+          if (roc>0.1) g.setColor(0,1,0);
+          if (roc<-1) g.setColor(1,0,0);
+          var y=p.y+p.h/2-roc*(p.h/2)/5;
+          g.fillRect(p.x,p.y+(p.h/2),p.x+p.w-1,Math.clip(y,p.y,p.y+p.h-1));
+        }, id:"vario",filly:1 },
+        {type:"", filly:1, width:1, bgCol:fg},
+        {type:"v",fillx:1, c: [
+          {type:"h", halign:1, c:[
+            {type:"txt", font:"22%", halign:1, filly:1, fillx:1, label:"9999", id:"alt", cb:()=>initAltMenu()},
+            unitsAlt[settings.altU].layoutCode
+          ]},
+          {type:"", fillx:1, height:"1", bgCol:fg},
+          {type:"h", halign:1, c:[
+            {type:"txt", font:"25%", halign:1, filly:1, fillx:1, label:"-9.9", id:"avg", cb:()=>initAvgMenu()},
+            unitsRoc[settings.rocU].layoutCode
+          ]},
+          {type:"", fillx:1, height:"1", bgCol:fg},
+          {type:"h", halign:1, c:[
+            {type:"txt", font:"25%", halign:1, filly:1, fillx:1, label:"XXX", id:"gs", cb:()=>initGsMenu()},
+            unitsGs[settings.gsU].layoutCode
+          ]}
         ]}
+      ]},
+      {type:"", fillx:1, height:"1", bgCol:fg},
+      {type:"h",c: [
+        {type:"txt",pad:0, halign:0, font:"15%",fillx:1, label:"99:99", id:"time", cb:()=>initTimeMenu()},
+        {type:"", width:1,height:g.getHeight()*0.15, bgCol:fg},
+        {type:"txt",pad:0, halign:0, font:"15%", fillx:1, label:"--:--", id:"flyingtime", cb:()=>initFlyingTimeMenu() }
       ]}
-    ]},
-    {type:"", fillx:1, height:"1", bgCol:"#FFF"},
-    {type:"h",c: [
-      {type:"txt",pad:"1", halign:0, font:"15%",fillx:"1", label:"99:99", id:"time"},
-      {type:"", width:"1", height:g.getHeight()*0.15+2, bgCol:"#FFF"},
-      {type:"txt",pad:"1", halign:0, font:"15%", fillx:"1", label:"99:99", id:"flyingtime" }
-    ]}
-  ]}//,{lazy:"true"}
-);
-pfd.update();
+    ]},{lazy:true}
+  );
+  g.clear();
+  pfd.render();
+  //-------testing------
+  //rawP=1000;
+  //samples=1;
+  //--------------------
+  pfdHandle = setInterval(function() {
+    //process pressure readings
+    if (samples) {
+      pressure=rawP/samples;
+      samples=0;
+      rawP=0;
+      if (altRaw==-9999) {//first measurement)
+        altRaw=getAltitude(pressure,qnh);
+        altFast=altRaw;
+        altSlow=altRaw;
+        for (let i = 0; i < settings.intTime*4+1; i++) altH.push(altRaw);
+      }
+    }
+    altRaw=getAltitude(pressure,qnh);
+    altFast=altFast+(altRaw-altFast)*fastGain;
+    altSlow=altSlow+(altRaw-altSlow)*slowGain;
+    altH.push(altRaw);
+    while (altH.length>settings.intTime*4+1) {
+      altH.shift();
+      rocAvg=(altH[altH.length-1]-altH[0])/settings.intTime;
+    }
+
+    if (settings.autoDetect) 
+      if ((!flying) && (!landed) && ((rocAvg>1) || (rocAvg<-1) || (gs>10))) 
+        takeoff();
+      else if ((flying) && ((rocAvg<1) && (rocAvg>-1) && (gs<10))) 
+        land();
+    
+    if (flying) {
+      flyingTime=Date().getTime()-takeoffTime;
+      pfd.flyingtime.label=(flyingTime / 3600000).toFixed(0)+":"+(flyingTime / 60000 % 60).toFixed(0).padStart(2,'0');
+      pfd.flyingtime.col=fg;
+      updateText(pfd.flyingtime);
+    } else if (landed) {
+      flyingTime=landingTime-takeoffTime;
+      pfd.flyingtime.label=(flyingTime / 3600000).toFixed(0)+":"+(flyingTime / 60000 % 60).toFixed(0).padStart(2,'0');
+      pfd.flyingtime.col=green;
+      updateText(pfd.flyingtime);
+    }
+
+    roc=(altFast-altSlow)/((0.25/slowGain)-(0.25/fastGain));
+    pfd.alt.label=(altRaw*unitsAlt[settings.altU].factor).toFixed(unitsAlt[settings.altU].precision);
+    pfd.avg.col=(rocAvg<-1) ? (red):((rocAvg>0.1) ? (green):(fg));
+    pfd.avg.label=(rocAvg*unitsRoc[settings.rocU].factor).toFixed(unitsRoc[settings.rocU].precision);
+
+    var gps = Bangle.getGPSFix();
+    if (gps) {
+      pfd.gs.label=(gps.speed*unitsGs[settings.gsU].factor).toFixed(unitsGs[settings.gsU].precision);
+      updateText(pfd.gs);
+      gs=gps.speed;
+    } 
+    
+    pfd.time.label=getTimeString();
+    updateText(pfd.alt);
+    updateText(pfd.avg);
+    updateText(pfd.time);
+    pfd.vario.render();
+  }, 250);
+
+}
+
+function initAltMenu() {
+  oldSettings=Object.assign({},settings);
+  clearInterval(pfdHandle);
+  var altMenu = new Layout ({
+    type:"h", c: [{
+      type:"v", width:180, c: [
+        {type:"btn", font:"12%", pad:2, fillx:1, filly:1, label:"set QNH", cb:()=>initQNHMenu()},
+        {type:"btn", font:"12%", id:"units", pad:2, fillx:1, filly:1, label:"Units: "+unitsAlt[settings.altU].name, cb:()=>{
+          settings.altU=(settings.altU+1)%unitsAlt.length;
+          altMenu.units.label="Units: "+unitsAlt[settings.altU].name;
+          altMenu.render();
+        }},
+      ]},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          settings=Object.assign({},oldSettings);
+          print("old settings restored");
+          initPFD();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          require('Storage').writeJSON("tinyVario.json", settings);
+          initPFD();
+        }}
+      ]}
+    ], lazy:true});
+  g.clear();
+  altMenu.render();
+}
+
+function initAvgMenu() {
+  oldSettings=Object.assign({},settings);
+  clearInterval(pfdHandle);
+  var avgMenu = new Layout ({
+    type:"h", c: [{
+      type:"v", width:180, c: [
+        {type:"btn", font:"12%", pad:2, fillx:1, filly:1, label:"+", cb:l=>{
+          settings.intTime=Math.clip(settings.intTime+1,1,60);
+          avgMenu.interval.label="Interval: "+settings.intTime+"s";
+          avgMenu.render();
+        }},
+        {type:"btn", id:"interval", font:"10%", pad:2, fillx:1, filly:1, label:"Interval: "+settings.intTime+"s", cb:()=>{}},
+        {type:"btn", font:"12%", pad:2, fillx:1, filly:1, label:"-", cb:l=>{
+          settings.intTime=Math.clip(settings.intTime-1,1,60);
+          avgMenu.interval.label="Interval: "+settings.intTime+"s";
+          avgMenu.render();
+        }},
+        {type:"btn", font:"12%", id:"units", pad:2, fillx:1, filly:1, label:"Units: "+unitsRoc[settings.rocU].name, cb:()=>{
+          settings.rocU=(settings.rocU+1)%unitsRoc.length;
+          avgMenu.units.label="Units: "+unitsRoc[settings.rocU].name;
+          avgMenu.render();
+        }},
+      ]},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          settings=Object.assign({},oldSettings);
+          initPFD();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          require('Storage').writeJSON("tinyVario.json", settings);
+          initPFD();
+        }}
+      ]}
+    ], lazy:true});
+  g.clear();
+  avgMenu.render();
+}
+
+function initQNHMenu() {
+  var oldQnh=qnh;
+  function updateQNHMenu() {
+    qnhMenu.clear();
+    qnhMenu.alt.label=
+      (getAltitude(pressure,qnh)*unitsAlt[settings.altU].factor).toFixed(unitsAlt[settings.altU].precision)
+      +unitsAlt[settings.altU].name;
+    qnhMenu.qnh.label=qnh;
+    qnhMenu.render();
+  }
+  var qnhMenu = new Layout ( {
+    type:"h", c: [{
+      type:"v", c: [
+        {type:"btn", font:"15%", fillx:1, filly:1, label:"+", cb:l=>{qnh++; updateQNHMenu();} },
+        {type:"v", c: [
+          {type:"h", c: [
+            {type:"txt", font:"13%", fillx:1, filly:1, label:"QNH: "},
+            {type:"txt", font:"13%", fillx:1, filly:1, id:"qnh", label:"    "},
+          ]},
+          {type:"h", c: [
+            {type:"txt", font:"13%", fillx:1, filly:1, label:"Alt: "},
+            {type:"txt", font:"13%", fillx:1, filly:1, id:"alt", label: "      "},
+          ]},
+          {type:"btn", font:"15%", fillx:1, filly:1, label:"-", cb:l=>{qnh--; updateQNHMenu();} }
+        ]}
+      ]},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          qnh=oldQnh;//=Object.assign({},oldSettings);
+          initAltMenu();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          var o=Bangle.getOptions();
+          o.seaLevelPressure=qnh;
+          Bangle.setOptions(o);
+          initAltMenu();
+        }}
+      ]}
+  ],lazy:true});
+  g.clear();
+  qnhMenu.render();
+  updateQNHMenu();
+}
+
+function initGsMenu() {
+  oldSettings=Object.assign({},settings);
+  clearInterval(pfdHandle);
+  var gsMenu = new Layout ({
+    type:"h", c: [
+      {type:"btn", font:"20%", id:"units", pad:2, fillx:1, filly:1, label:"Units:\n"+unitsGs[settings.gsU].name, cb:()=>{
+        settings.gsU=(settings.gsU+1)%unitsGs.length;
+        gsMenu.units.label="Units:\n"+unitsGs[settings.gsU].name;
+        gsMenu.render();
+      }},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          settings=Object.assign({},oldSettings);
+          print("old settings restored");
+          initPFD();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          require('Storage').writeJSON("tinyVario.json", settings);
+          initPFD();
+        }}
+      ]}
+    ], lazy:true});
+  g.clear();
+  gsMenu.render();
+}
+
+function initTimeMenu() {
+  oldSettings=Object.assign({},settings);
+  clearInterval(pfdHandle);
+  var timeMenu = new Layout ({
+    type:"h", c: [
+      {type:"btn", font:"20%", id:"format", pad:2, fillx:1, filly:1, label:"Time:\n"+((settings.localTime==true) ? ("LCL") : ("UTC")), cb:()=>{
+        settings.localTime=!settings.localTime;
+        timeMenu.format.label="Time:\n"+((settings.localTime==true) ? ("LCL") : ("UTC"));
+        timeMenu.render();
+      }},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          settings=Object.assign({},oldSettings);
+          initPFD();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          require('Storage').writeJSON("tinyVario.json", settings);
+          initPFD();
+        }}
+      ]}
+    ], lazy:true});
+  g.clear();
+  timeMenu.render();
+}
+
+function initTimeMenu() {
+  oldSettings=Object.assign({},settings);
+  clearInterval(pfdHandle);
+  var timeMenu = new Layout ({
+    type:"h", c: [
+      {type:"btn", font:"20%", id:"format", pad:2, fillx:1, filly:1, label:"Time:\n"+((settings.localTime==true) ? ("LCL") : ("UTC")), cb:()=>{
+        settings.localTime=!settings.localTime;
+        timeMenu.format.label="Time:\n"+((settings.localTime==true) ? ("LCL") : ("UTC"));
+        timeMenu.render();
+      }},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          settings=Object.assign({},oldSettings);
+          initPFD();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          require('Storage').writeJSON("tinyVario.json", settings);
+          initPFD();
+        }}
+      ]}
+    ], lazy:true});
+  g.clear();
+  timeMenu.render();
+}
+
+function initFlyingTimeMenu() {
+  oldSettings=Object.assign({},settings);
+  clearInterval(pfdHandle);
+  var ftMenu = new Layout (
+    {type:"h", c: [
+      {type:"v", c: [
+        {type:"btn", font:"12%", pad:2, fillx:1, filly:1, label:"Toggle\nAutodetect", cb:()=>{
+          settings.autodetect=!settings.autodetect;
+          ftMenu.manual.label= (settings.autodetect==true)? 
+            ("AUTO"):((flying) ? ("Manual\nLAND") : ("Manual\nTAKE OFF"));
+          ftMenu.render();
+        }},
+        {type:"btn", font:"12%", id:"manual", pad:2, fillx:1, filly:1, label:(settings.autodetect==true)? 
+          ("AUTO"):((flying) ? ("Manual\nLAND") : ("Manual\nTAKE OFF")), cb:()=>{
+            if (settings.autodetect==false) {
+              if (!flying) {
+                E.showPrompt("Take off now?").then((v)=> {
+                  if (v) {
+                    takeoff();
+                    initPFD();
+                  }
+                });
+              } else {
+                E.showPrompt("Land now?").then((v)=> {
+                  if (v) {
+                    land();
+                    initPFD();
+                  }
+                });
+              }
+            }
+          }
+        },
+        {type:"btn", font:"12%", pad:2, fillx:1, filly:1, label:"Reset", cb:()=>{
+          E.showPrompt("Reset Flight?").then((v)=> {
+            flying=false;
+            landed=false;
+            initPFD();
+          });
+        }}
+      ]},
+      {type:"v", c: [
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"BACK", cb: ()=>{
+          settings=Object.assign({},oldSettings);
+          initPFD();
+        }},
+        {type:"btn", r:3, font:"12%", pad:2, filly:1, label:"SAVE", cb: ()=>{
+          require('Storage').writeJSON("tinyVario.json", settings);
+          initPFD();
+        }}
+      ]}
+    ], lazy:true});
+  g.clear();
+  ftMenu.render();
+}
+
+Bangle.setGPSPower(true, "tinyVario");
+Bangle.setBarometerPower(true, "tinyVario");
 
 Bangle.on('pressure', function(e) {
-  if ((altFast)==-10000) {
-    altFast=e.altitude;
-    altSlow=e.altitude;
+  if (samples<10) { //no need to gather more samples when stuck in a menu
+    rawP+=e.pressure;
+    samples++;
   }
-  altFast=altFast+(e.altitude-altFast)*fastGain;
-  altSlow=altSlow+(e.altitude-altSlow)*0.09093;
 });
 
-Bangle.on('GPS', function(fix) {
-  gs=fix.speed;
-});
-          
-/*setWatch(function() {
-  
-}, BTN1);*/
-
-setInterval(function () { 
-  altH.push(altSlow);
-  if (altH.length>intTime*1000/pressureInterval) {
-    altH.shift();
-    rocAvg=(altH[altH.length-1]-altH[0])/intTime;
-  }
-}, pressureInterval);
-
-g.clear();
-pfd.render();
-
-setInterval(function() {
-  pfd.clear(pfd.alt);
-  pfd.clear(pfd.avg);
-  pfd.clear(pfd.time);
-  rocAvg=1*rocUnit.factor;
-  if ((!flying) && ((rocAvg>1) || (rocAvg<-1) || (gs>10))) { //take-off detected
-    takeoffTime=Date().getTime();
-    flying=true;
-  } 
-  if (flying) {
-    pfd.clear(pfd.flyingtime);
-    flyingTime=Date().getTime()-takeoffTime;
-    pfd.flyingtime.label=(flyingTime / 3600000).toFixed(0)+":"+(flyingTime / 60000 % 60).toFixed(0).padStart(2,'0');
-  } 
-  roc=(altFast-altSlow)/(pressureInterval/1000/slowGain)-(pressureInterval/1000/fastGain);
-  pfd.alt.label=(altSlow).toFixed(0);
-  if (rocAvg>0.1) pfd.avg.col="#0f0";
-    else if (rocAvg<-1) pfd.avg.col="#f00";
-    else pfd.avg.col="#fff";
-  pfd.avg.label=(rocAvg*rocUnit.factor).toFixed(rocUnit.precision);
-  if (!isNaN(gs)) {
-    pfd.gs.label=gs.toFixed(0);
-    pfd.clear(pfd.gs);
-  } 
-  pfd.time.label=require("locale").time(Date(),1);
-  updateText(pfd.alt);
-  updateText(pfd.avg);
-  updateText(pfd.gs);
-  updateText(pfd.time);
-  updateText(pfd.flyingtime);
-  drawVario();
- // pfd.debug(pfd.roc);
-  //pfd.render();  
-}, 250);
-
+initPFD();