Rest of last commit. Renderer js

app/lib/arduino/index.js

@@ -25,7 +25,7 @@ const KNOWN = [
  * Class representing the arduino communication features
  **/
 class Arduino {
-    constructor() {
+    constructor(errorState) {
         this.path = {};
         this.known = KNOWN;
         this.alias = {};
@@ -35,6 +35,7 @@ class Arduino {
         this.timer = 0;
         this.lock = false;
         this.locks = {};
+        this.errorState = errorState;
         this.init();
     }
     async init() {
@@ -169,6 +170,11 @@ class Arduino {
             eventEmitter.emit('arduino_end', data);
             delete this.queue[data];
         }
+        else if (data === 'E') {
+            //error state
+            //stop sequence
+            //throw error in ui
+        }
         else {
             //console.log('Received stray "' + data + '"'); //silent to user
         }
@@ -391,10 +397,10 @@ class Arduino {
     }
 }
 if (typeof module !== 'undefined' && module.parent) {
-    module.exports = function (c, ee) {
+    module.exports = function (c, ee, errorState) {
         eventEmitter = ee;
         cfg = c;
-        arduino = new Arduino();
+        arduino = new Arduino(errorState);
         return arduino;
     };
 }

app/lib/ui/devices.js

@@ -23,6 +23,7 @@ class Devices {
     listen() {
         ipcRenderer.on('ready', this.ready.bind(this));
         ipcRenderer.on('intval', this.intvalCb.bind(this));
+        ipcRenderer.on('error_state', this.errorState.bind(this));
     }
     ready(event, arg) {
         return __awaiter(this, void 0, void 0, function* () {
@@ -173,6 +174,12 @@ class Devices {
             $('#intval').removeClass('active');
         }
     }
+    errorState() {
+        gui.spinner(false);
+        gui.overlay(false);
+        gui.notify('DEVICES', `Hardware error detected`);
+        gui.warn('Error', 'Hardware error detected. Please address before continuing.');
+    }
 }
 devices = new Devices();
 module.exports = devices;