Add Home Assistant Bluetooth LED

Author: gfwilliams

apps.json

@@ -290,6 +290,18 @@
       {"name":".bootcde","url":"app.js"}
     ]
   },
+  { "id": "ha_led",
+    "name": "Home Assistant Bluetooth LED",
+    "icon": "icon.png",
+    "version":"0.01",
+    "description": "Turn your Bluetooth Espruino device into a LED that can be controlled from Home assistant",
+    "tags": "bluetooth,homeassistant,LED",
+    "readme": "README.md",
+    "needsFeatures":["BLE","RGBLED"],
+    "storage": [
+      {"name":".bootcde","url":"app.js"}
+    ]
+  },
   { "id": "knobbutton",
     "name": "Knob Button",
     "icon": "icon.png",

apps/ha_led/ChangeLog

@@ -0,0 +1 @@
+0.01: New App!

apps/ha_led/README.md

@@ -0,0 +1,12 @@
+# Home Assistant Bluetooth LED
+
+Turn your Bluetooth Espruino device into a LED that can be controlled from Home assistant.
+
+This uses the [LED BLE Library](https://www.espruino.com/ble_led) which makes Espruino appear as a BLE lightbulb which
+is detected by the [LED BLE integration](https://www.home-assistant.io/integrations/led_ble/) in https://www.home-assistant.io/
+
+This is based on https://www.espruino.com/BTHome and https://www.espruino.com/Smart+Meter
+
+## Usage
+
+Install the app and disconnect, and a device called `LEDBLE` should appear in Home Assistant. Turning it on/off or changing the colour will change the built-in LEDs.

apps/ha_led/app.js

@@ -0,0 +1,10 @@
+require("ble_led").setup(function(state) {
+  if (state.on) {
+    // state.r/g/b arr in the range 0..255
+    LED1.pwm(state.r/256);
+    LED2.pwm(state.g/256);
+    LED3.pwm(state.b/256);
+  } else {
+    digitalWrite([LED1,LED2,LED3],0);
+  }
+});