mirror of https://github.com/espruino/BangleApps
101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
var uart; // require("ble_uart")
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var device; // BluetoothDevice
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var uploadTimeout; // a timeout used during upload - if we disconnect, kill this
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Bangle.loadWidgets();
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var json = require("Storage").readJSON("espruinoprog.json",1);
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/*var json = { // for example
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namePrefix : "Puck.js ",
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code : "E.setBootCode('digitalPulse(LED2,1,100);')",
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post : "LED.set();NRF.sleep()",
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};*/
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if ("object" != typeof json) {
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E.showAlert("JSON not found","Programmer").then(() => load());
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throw new Error("JSON not found");
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// stops execution
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}
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// Set up terminal
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var R = Bangle.appRect;
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var termg = Graphics.createArrayBuffer(R.w, R.h, 1, {msb:true});
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termg.setFont("6x8");
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var term;
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function showTerminal() {
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E.showMenu(); // clear anything that was drawn
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if (term) term.print(""); // redraw terminal
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}
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function scanAndConnect() {
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termg.clear();
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term = require("VT100").connect(termg, {
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charWidth : 6,
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charHeight : 8
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});
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term.print = str => {
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for (var i of str) term.char(i);
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g.reset().drawImage(termg,R.x,R.y);
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};
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term.print(`\r\nScanning...\r\n`);
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NRF.requestDevice({ filters: [{ namePrefix: json.namePrefix }] }).then(function(dev) {
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term.print(`Found ${dev.name||dev.id.substr(0,17)}\r\n`);
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device = dev;
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term.print(`Connect to ${dev.name||dev.id.substr(0,17)}...\r\n`);
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device.removeAllListeners();
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device.on('gattserverdisconnected', function(reason) {
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if (!uart) return;
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term.print(`\r\nDISCONNECTED (${reason})\r\n`);
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uart = undefined;
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device = undefined;
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if (uploadTimeout) clearTimeout(uploadTimeout);
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uploadTimeout = undefined;
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setTimeout(scanAndConnect, 1000);
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});
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require("ble_uart").connect(device).then(function(u) {
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uart = u;
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term.print("Connected...\r\n");
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uart.removeAllListeners();
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uart.on('data', function(d) { term.print(d); });
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term.print("Upload initial...\r\n");
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uart.write((json.pre||"")+"\n").then(() => {
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term.print("\r\Done.\r\n");
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uploadTimeout = setTimeout(function() {
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uploadTimeout = undefined;
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term.print("\r\nUpload Code...\r\n");
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uart.write((json.code||"")+"\n").then(() => {
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term.print("\r\Done.\r\n");
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// main upload completed - wait a bit
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uploadTimeout = setTimeout(function() {
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uploadTimeout = undefined;
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term.print("\r\Upload final...\r\n");
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// now upload the code to run after...
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uart.write((json.post||"")+"\n").then(() => {
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term.print("\r\nDone.\r\n");
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// now wait and disconnect (if not already done!)
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uploadTimeout = setTimeout(function() {
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uploadTimeout = undefined;
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term.print("\r\nDisconnecting...\r\n");
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if (uart) uart.disconnect();
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}, 500);
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});
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}, 2000);
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});
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}, 2000);
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});
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});
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}).catch(err => {
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if (err.toString().startsWith("No device found")) {
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// expected - try again
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scanAndConnect();
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} else
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term.print(`\r\ERROR ${err.toString()}\r\n`);
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});
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}
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// now start
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Bangle.drawWidgets();
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showTerminal();
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scanAndConnect();
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