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這篇文章將為大家詳細講解有關怎么用樹莓派搭建傳感器物聯網應用,小編覺得挺實用的,因此分享給大家做個參考,希望大家閱讀完這篇文章后可以有所收獲。
1. 掛載DS18B20
sudo modprobe w1-gpio sudo modprobe w1-therm
2. 安裝Python的庫單總線溫度計訪問庫: w1thermsensor
pip install w1thermsensor
3. 新建一個iot.py文件敲入以下代碼
#!/usr/bin/env python #coding=utf8 import httplib, urllib from w1thermsensor import W1ThermSensor import time import socket, serial, time import httplib import json HOST = "open.lewei50.com" PORT = 80 user_key = '樂為物聯的userkey' def send_data_to_yeelink(temp): httpClient = None try: params = json.dumps({'value': temp}) headers = {"Content-type": "application/json" , "Accept": "text/plain",'U-ApiKey': 'Yeelink的api key'} print params httpClient = httplib.HTTPConnection('api.yeelink.net', 80, timeout=30) httpClient.request("POST", "/v1.1/device/設備id/sensor/傳感器id/datapoints", params, headers) response = httpClient.getresponse() print response.status print response.reason print response.read() print response.getheaders() #獲取頭信息 except Exception, e: print e finally: if httpClient: httpClient.close() def send_data(temp): httpClient = None try: params = json.dumps([{'Name': '傳感器名稱', 'Value': temp}]) headers = {"Content-type": "application/x-www-form-urlencoded" , "Accept": "text/plain","userkey":user_key} print params httpClient = httplib.HTTPConnection(HOST, 80, timeout=30) httpClient.request("POST", "/api/V1/Gateway/UpdateSensors/01", params, headers) response = httpClient.getresponse() print response.status print response.reason print response.read() print response.getheaders() #獲取頭信息 except Exception, e: print e finally: if httpClient: httpClient.close() while True: for sensor in W1ThermSensor.get_available_sensors([W1ThermSensor.THERM_SENSOR_DS18B20]): temp=sensor.get_temperature() print("Sensor %s has temperature %.2f" % (sensor.id,temp )) send_data(temp) send_data_to_yeelink(temp) time.sleep(120)
4. 運行python腳本
python iot.py
5. 如果溫度讀取成功且上傳成功會打印相關消息.
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