极客DIY：如何用Siri与树莓派“交互”

0×01 基本工具

硬件在某宝上都有卖的，加起来不到300块    

联动HomeKit的工程在git上找到两个，都是基于nodejs的，这边先测试的是HAP-NodeJS

0×02 安装

先解决依赖

# apt-get install avahi-daemon avahi-discover libnss-mdns libavahi-compat-libdnssd-dev  build-essential -y
# service avahi-daemon start

 增加nodejs源

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -

# apt-get install nodejs

克隆源代码

git  clone  https://github.com/KhaosT/HAP-NodeJS.git

安装node-gyp

$ sudo npm install -g node-gyp

然后切换到HAP-NodeJS文件夹下，运行

node Core,js

 缺哪个库安装哪个库

最后安装

npm install python-shell

打开iPhone手机的HomeKit就能看到伪造的智能设备了

在accessories的目录下新建一个LivingLight_accessory.js，代码如下

//Light_accessory.jsvar PythonShell = require('python-shell');// HomeKit types requiredvar types = require("./types.js")var exports = module.exports = {};var execute = function(accessory,characteristic,value){ console.log("executed accessory: " + accessory + ", and characteristic: " + characteristic + ", with value: " +  value + "."); }

exports.accessory = {
  displayName: "Living Light",
  username: "1A:5B:3C:4A:5E:FF",
  pincode: "031-45-154",
  services: [{
    sType: types.ACCESSORY_INFORMATION_STYPE,
    characteristics: [{
        cType: types.NAME_CTYPE,
        onUpdate: null,
        perms: ["pr"],
        format: "string",
        initialValue: "Living Light",
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Bla",
        designedMaxLength: 255    },{
        cType: types.MANUFACTURER_CTYPE,
        onUpdate: null,
        perms: ["pr"],
        format: "string",
        initialValue: "Oltica",
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Bla",
        designedMaxLength: 255    },{
        cType: types.MODEL_CTYPE,
        onUpdate: null,
        perms: ["pr"],
        format: "string",
        initialValue: "Rev-1",
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Bla",
        designedMaxLength: 255    },{
        cType: types.SERIAL_NUMBER_CTYPE,
        onUpdate: null,
        perms: ["pr"],
        format: "string",
        initialValue: "A1S2NASF88EW",
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Bla",
        designedMaxLength: 255    },{
        cType: types.IDENTIFY_CTYPE,
        onUpdate: null,
        perms: ["pw"],
        format: "bool",
        initialValue: false,
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Identify Accessory",
        designedMaxLength: 1    }]
  },{
    sType: types.LIGHTBULB_STYPE,
    characteristics: [{
        cType: types.NAME_CTYPE,
        onUpdate: null,
        perms: ["pr"],
        format: "string",
        initialValue: "Light 1 Light Service",
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Bla",
        designedMaxLength: 255    },{
        cType: types.POWER_STATE_CTYPE,
        onUpdate: function(value)     {
            console.log("Change:",value);
            if (value) {
            PythonShell.run('/python/light1.py', function (err) {
                   console.log('Light1 On Success');
            });
            } else {
                PythonShell.run('/python/light0.py', function (err) {
                    console.log("Off Success");

                });
            }
        },
        perms: ["pw","pr","ev"],
        format: "bool",
        initialValue: false,
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Turn On the Light",
        designedMaxLength: 1    },{
        cType: types.HUE_CTYPE,
        onUpdate: function(value) { console.log("Change:",value); execute("Test Accessory 1", "Light - Hue", value); },
        perms: ["pw","pr","ev"],
        format: "int",
        initialValue: 0,
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Doesn’t actually adjust Hue of Light",
        designedMinValue: 0,
        designedMaxValue: 360,
        designedMinStep: 1,
        unit: "arcdegrees"    },{
        cType: types.BRIGHTNESS_CTYPE,
        onUpdate: function(value) { console.log("Change:",value); execute("Test Accessory 1", "Light - Brightness", value); },
        perms: ["pw","pr","ev"],
        format: "int",
        initialValue: 0,
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Doesn’t actually adjust Brightness of Light",
        designedMinValue: 0,
        designedMaxValue: 100,
        designedMinStep: 1,
        unit: "%"    },{
        cType: types.SATURATION_CTYPE,
        onUpdate: function(value) { console.log("Change:",value); execute("Test Accessory 1", "Light - Saturation", value); },
        perms: ["pw","pr","ev"],
        format: "int",
        initialValue: 0,
        supportEvents: false,
        supportBonjour: false,
        manfDescription: "Doesn’t actually adjust Saturation of Light",
        designedMinValue: 0,
        designedMaxValue: 100,
        designedMinStep: 1,
        unit: "%"    }]
  }]
}

然后在HAP-NodeJS下新建python文件夹，新建light1.py,用来开启灯

复位电路由电容串联电阻构成，由图并结合“电容电压不能突变”的性质，可以知道，当系统一上电，RST脚将会出现高电平，并且，这个高电平持续的时间由电路的RC值来决定。典型的51单片机当RST脚的高电平持续两个机器周期以上就将复位，所以，适当组合RC的取值就可以保证可靠的复位。

import RPi.GPIO as GPIOGPIO.setwarnings(False)GPIO.setmode(GPIO.BOARD)GPIO.setup(16, GPIO.OUT)GPIO.output(16, 1)#GPIO.cleanup()

light0.py用来关闭灯

import RPi.GPIO as GPIOGPIO.setwarnings(False)GPIO.setmode(GPIO.BOARD)GPIO.setup(16, GPIO.OUT)GPIO.output(16, 0)#GPIO.cleanup()

重新运行node Core.js即可在HomeKit看到新建的Living Light

把这个添加,pincode就是031-45-154

硬件连接

我这边用的是物理接口的16口和34口

后记

这里有个前提条件是树莓派和iPhone在同一个子网上,如果想从外网控制就得需要映射公网WEB服务器或者是第三方物联网WEB的形式。而如果想将树莓派作为智能家庭网络的中心，后期还有很多工作要做，比如服务开机启动,连接继电器，线路改造，车库门，温度感应器，电视，摄像头等，有机会再继续聊吧

Reference：

http://www.instructables.com/id/Raspberry-Pi-2-Homekit-from-zero-to-Hey-Siri/?ALLSTEPS

https://github.com/KhaosT/HAP-NodeJS