利用樹霉派採集溫濕度上傳到OneNET(非完整，僅參考)

看圖：

Python代碼：

 #env /usr/bin/python3
 #author Bruce
 
 import RPi.GPIO as GPIO
 import time
 import json
 import datetime
 import requests
 
 APIKEY = '=xxxxxxxxxxxxxxxxxxxx='
 apiurl = 'http://api.heclouds.com/devices/11111111/datapoints'
 apiheaders = {'api-key': APIKEY, 'Content-Length': ''}
 
 def getTemp():
     channel = 17
     data = []
     j = 0
 
     GPIO.setmode(GPIO.BCM)
 
     time.sleep(1)
 
     GPIO.setup(channel, GPIO.OUT)
 
     GPIO.output(channel, GPIO.LOW)
     time.sleep(0.02)
     GPIO.output(channel, GPIO.HIGH)
 
     GPIO.setup(channel, GPIO.IN)
 
     while GPIO.input(channel) == GPIO.LOW:
         continue
 
     while GPIO.input(channel) == GPIO.HIGH:
         continue
 
     while j < 40:
         k = 0
         while GPIO.input(channel) == GPIO.LOW:
             continue
 
         while GPIO.input(channel) == GPIO.HIGH:
             k += 1
             if k > 100:
                 break
 
         if k < 8:
             data.append(0)
         else:
             data.append(1)
 
         j += 1
 
     print("sensor is working.")
     print(data)
 
     humidity_bit = data[0:8]
     humidity_point_bit = data[8:16]
     temperature_bit = data[16:24]
     temperature_point_bit = data[24:32]
     check_bit = data[32:40]
 
     humidity = 0
     humidity_point = 0
     temperature = 0
     temperature_point = 0
     check = 0
 
     for i in range(8):
         humidity += humidity_bit[i] * 2 ** (7 - i)
         humidity_point += humidity_point_bit[i] * 2 ** (7 - i)
         temperature += temperature_bit[i] * 2 ** (7 - i)
         temperature_point += temperature_point_bit[i] * 2 ** (7 - i)
         check += check_bit[i] * 2 ** (7 - i)
 
     tmp = humidity + humidity_point + temperature + temperature_point
 
     tmp_output = open('/home/pi/Desktop/Projects/DHT11/log.txt', 'a+')
     csv=open('/home/pi/Desktop/Projects/DHT11/log.csv', 'a+')
 
     if check == tmp:
         print("temperature : ", temperature, ", humidity : " , humidity)
 
         tmp_output.write(',\n{"Time":' + time.strftime("%Y/%m/%d %H:%M:%S",time.localtime()) + ",")
         tmp_output.write('"temperate":')
         tmp_output.write(str(temperature))
         tmp_output.write(',')
         tmp_output.write('"Humidity":' + str(humidity))
         tmp_output.write('}')
 
         csv.write(time.strftime("%Y/%m/%d %H:%M:%S",time.localtime()) + ",")
         csv.write(str(temperature))
         csv.write(',')
         csv.write(str(humidity))
         csv.write('\n')
     else:
         print("wrong")
         print("temperature : ", temperature, ", humidity : " , humidity, " check : ", check, " tmp : ", tmp)
 
     tmp_output.close()
     csv.close()
 
     CurTime = datetime.datetime.now()
     payload = {'datastreams':[{"id":"DHT11a","datapoints":[{"at":CurTime.isoformat(),"value":temperature}]}]}
     print("Current time: %s" % CurTime.isoformat())
     print("Upload value: %.3f" % temperature)
 
     jdata = json.dumps(payload)
 
     r=requests.post(apiurl,headers=apiheaders,data=json.dumps(payload))
 
     return r
 
 if __name__ == "__main__":
     try:
         while 1:
             resp = getTemp()
             print("OneNET request result: \n %s" %resp)
             time.sleep(55)
     finally:
         GPIO.cleanup()