HomeKit-and-Particle-Photon | HomeKit and Particle Photon integration using Homebridge

HomeKit-and-Particle-Photon is a C++ library typically used in Internet of Things (IoT), Raspberry Pi applications. HomeKit-and-Particle-Photon has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

After viewing this great example by Nikita Leonov, I too decided to work on HomeKit and Particle Photon. I decided to simulate Temperature, Humidity and Luminosity sensor and one Light. Here is the sample I completed. Here in this sample, I am using Homebridge and HAP-NodeJS to emulate HomeKit API. Homebridge is a shim around HAP-NodeJS. HAP-NodeJS is a Node.js implementation of HomeKit Accessory Server. Homebridge supports 2 types of shims, accessory and platforms. Accessory is a single or multiple accessory device. Platform a bridge to another system. In HAP-Node-JS each accessory has require Characteristics which must be implemented by the Accessory and some optional Characteristics which is optional. For this sample I created an accessory which emulates 4 devices, Temperature Sensor, Humidity Sensor, Luminosity Sensor and a Light. The Light supports brightness and hue characteristics. My Homebridge app is running on my Macbook Pro (you can Raspberry Pi or any Linux system also, I tried to compile Homebridge under Cygwin but failed). DHT22 sensor is used to read Temperature and Humidity, TSL2561 sensor is used for luminosity. To simulate light I am using a simple RGB Led. The Photon firmware reads Temperature, Humidity and Luminosity sensor values and publish an event at every 5 seconds. The Particle Accessory listens for this events and whenever it is received, update the Characteristics. To control the light, the accessory calls Photon exposed functions to turn on/off, adjust brightness and set hue.