Led.RGB: Add BlinkM support

Fixes #742
rwaldron · May 26, 2015 · 1e9c148 · 1e9c148
1 parent 70deced
commit 1e9c148
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diff --git a/lib/led/rgb.js b/lib/led/rgb.js
@@ -103,6 +103,42 @@ var Controllers = {
           this.io.i2cWrite(this.address, [this.COMMANDS.LED0_ON_L + 4 * pin, on, on >> 8, off, off >> 8]);
         }, this);
 
+        Object.assign(state, colors);
+      }
+    }
+  },
+  BLINKM: {
+    COMMANDS: {
+      value: {
+        GO_TO_RGB_COLOR_NOW: 0x6e,
+        STOP_SCRIPT: 0x6f
+      }
+    },
+    initialize: {
+      value: function(opts) {
+        this.address = opts.address || 0x09;
+
+        if (!this.board.Drivers[this.address]) {
+          this.io.i2cConfig();
+          this.board.Drivers[this.address] = {
+            initialized: false
+          };
+
+          // Stop the current script
+          this.board.io.i2cWrite(this.address, [this.COMMANDS.STOP_SCRIPT]);
+
+          this.board.Drivers[this.address].initialized = true;
+        }
+      }
+    },
+    write: {
+      writable: true,
+      value: function(colors) {
+        var state = priv.get(this);
+
+        this.board.io.i2cWrite(this.address,
+          [this.COMMANDS.GO_TO_RGB_COLOR_NOW, colors.red, colors.green, colors.blue]);
+
         Object.assign(state, colors);
       }
     }

diff --git a/test/led.js b/test/led.js
@@ -955,6 +955,59 @@ exports["Led.RGB - PCA9685 (I2C)"] = {
   }
 };
 
+exports["Led.RGB - BlinkM (I2C)"] = {
+  setUp: function(done) {
+    this.board = newBoard();
+
+    this.ledRgb = new Led.RGB({
+      controller: "BlinkM",
+      board: this.board
+    });
+
+    this.i2cWrite = sinon.spy(this.board.io, "i2cWrite");
+
+    done();
+  },
+
+  shape: function(test) {
+    test.expect(rgbProtoProperties.length + rgbInstanceProperties.length);
+
+    rgbProtoProperties.forEach(function(method) {
+      test.equal(typeof this.ledRgb[method.name], "function");
+    }, this);
+
+    rgbInstanceProperties.forEach(function(property) {
+      test.notEqual(typeof this.ledRgb[property.name], "undefined");
+    }, this);
+
+    test.done();
+  },
+
+  write: function(test) {
+    test.expect(6);
+
+    // Fully off
+    this.ledRgb.write({ red: 0x00, green: 0x00, blue: 0x00 });
+    test.equal(this.i2cWrite.callCount, 1);
+    test.ok(this.i2cWrite.calledWith(0x09, [0x6e, 0x00, 0x00, 0x00]));
+    this.i2cWrite.reset();
+
+    // Fully on
+    this.ledRgb.write({ red: 0xff, green: 0xff, blue: 0xff });
+    test.equal(this.i2cWrite.callCount, 1);
+    test.ok(this.i2cWrite.calledWith(0x09, [0x6e, 0xff, 0xff, 0xff]));
+    this.i2cWrite.reset();
+
+    // Custom color
+    this.ledRgb.write({ red: 0xbb, green: 0xcc, blue: 0xaa });
+    test.equal(this.i2cWrite.callCount, 1);
+    test.ok(this.i2cWrite.calledWith(0x09, [0x6e, 0xbb, 0xcc, 0xaa]));
+    this.i2cWrite.reset();
+
+    test.done();
+  }
+};
+
 exports["Led - Default Pin w/ Firmata"] = {
   shape: function(test) {
     test.expect(8);