这篇文章将为大家详细讲解有关怎么用树莓派搭建传感器物联网应用，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
1. 挂载DS18B20
sudo modprobe w1-gpio sudo modprobe w1-therm
2. 安装Python的库单总线温度计访问库: w1thermsensor
pip install w1thermsensor
3. 新建一个iot.py文件敲入以下代码
计算
安全
数据库
网络和加速
企业服务
#!/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 = '乐为物联的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/设备id/sensor/传感器id/datapoints", params, headers)
response = httpClient.getresponse()
print response.status
print response.reason
print response.read()
print response.getheaders() #获取头信息
except Exception, e:
print e
finally:
if httpClient:
httpClient.close()
def send_data(temp):
httpClient = None
try:
params = json.dumps([{'Name': '传感器名称', '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() #获取头信息
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. 运行python脚本
python iot.py
5. 如果温度读取成功且上传成功会打印相关消息.
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原文链接：https://my.oschina.net/betayuan/blog/775674
