【智能家居】用 Python 和 Home Assistant API 实现拍手开灯

用过 Google Home 和 Alexa 语音助手后，我觉得很方便，就想试试能不能拍手开灯。家里已经部署了 Home Assistant，它也支持二次开发，于是我用 Home Assistant API 写了这个程序。拍两下手，程序就会根据灯的当前状态开灯或关灯。也可以设置不同的拍手次数来执行不同的操作。

Home Assistant是一个开源智能家居管理平台： Home Assistant is an open-source home automation platform running on Python 3. Track and control all devices at home and automate control. Perfect to run on a Raspberry Pi. 官网：https://www.home-assistant.io/   GitHub 详情页：https://github.com/KrunkZhou/PI-Clap   代码部分：

import pyaudio import sys import threading import time from time import sleep from array import array import KRUNKHOMEAPI as kapi import homeassistant.remote as koapi #You will need to download homeassistant python api

def main(): kapi.api=koapi.API('sample.com', 'password','8123') # HA-API:domain, password, port check=kapi.apicheck() if check: start() kapi.endscript()

clap = 0 wait = 1 flag = 0 pin = 24 exitFlag = False

def toggleLight(c): domain = 'light' #domain switch_name = 'light.lamp' #switch name print (str(kapi.get_state(switch_name))) lamp=kapi.get_state(switch_name) if (lamp.state=='off'): kapi.turn_on(domain,switch_name) else: kapi.turn_off(domain,switch_name) sleep(1) print("Light toggled")

def waitForClaps(threadName): global clap global flag global wait global exitFlag global pin print ("Waiting for more claps") sleep(wait) if clap == 2: print ("Two claps") toggleLight(pin)

elif clap == 3:

print "Three claps"

#elif clap == 4: #exitFlag = True print ("Claping Ended") clap = 0 flag = 0

def start(): global clap global flag global pin

chunk = 1024 FORMAT = pyaudio.paInt16 CHANNELS = 1 RATE = 44100 threshold = 3000 max_value = 0 p = pyaudio.PyAudio() stream = p.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, output=True, frames_per_buffer=chunk) try: print ("Start") while True: data = stream.read(chunk) as_ints = array('h', data) max_value = max(as_ints) if max_value > threshold: clap += 1 print ("Clapped") if clap == 1 and flag == 0: t=threading.Thread( target=waitForClaps, args=("waitThread",) ) t.start() flag = 1 if exitFlag: sys.exit(0) except (KeyboardInterrupt, SystemExit): print ("\rExiting") stream.stop_stream() stream.close() p.terminate()

if __name__ == '__main__': main()

下载： https://github.com/KrunkZhou/PI-Clap