espruinoctrl updates for Bangle.js 2

Disable not existing BTN3 on Bangle.js 2, set maximum transmit power

apps/espruinoctrl/ChangeLog

@@ -1 +1,2 @@
 0.01: New App!
+0.02: Disable not existing BTN3 on Bangle.js 2, set maximum transmit power

apps/espruinoctrl/custom.html

@@ -164,6 +164,7 @@ function cmd(cmd,mac,rx) {
   if (mac) {
     E.showMessage("Connecting\\n"+mac);
     if (mac.length==17) mac+=" random";
+    NRF.setTxPower(process.env.HWVERSION == 2 ? 8 : 4);
     NRF.connect(mac).then(dev=>send(dev,cmd,onDone)).catch(err);
   } else {
     E.showMessage("Scanning...");
@@ -193,14 +194,16 @@ function sendCommandRX(device, text, callback) {
     function done() {
       Terminal.println("\\n============\\n     Disconnected");
       device.disconnect();
-      setTimeout(function() {
-        setWatch(function() {
-          if (callback) callback();
-          resolve();
-        }, BTN3);
-        g.reset().setFont("6x8",2).setFontAlign(0,0,1);
-        g.drawString("Back", g.getWidth()-10, g.getHeight()-50);
-      }, 200);
+      if (global.BTN3 !== undefined) {
+        setTimeout(function() {
+          setWatch(function() {
+            if (callback) callback();
+            resolve();
+          }, BTN3);
+          g.reset().setFont("6x8",2).setFontAlign(0,0,1);
+          g.drawString("Back", g.getWidth()-10, g.getHeight()-50);
+        }, 200);
+      }
     }
     device.getPrimaryService("6e400001-b5a3-f393-e0a9-e50e24dcca9e").then(function(s) {
       service = s;

apps/espruinoctrl/metadata.json

@@ -2,7 +2,7 @@
   "id": "espruinoctrl",
   "name": "Espruino Control",
   "shortName": "Espruino Ctrl",
-  "version": "0.01",
+  "version": "0.02",
   "description": "Send commands to other Espruino devices via the Bluetooth UART interface. Customisable commands!",
   "icon": "app.png",
   "tags": "tool,bluetooth",