大气质量监测系统：树莓派开gpio读取传感器并上传云端，同时有触屏显示界面；跨平台客户端从云端读取数据，并作3d显示.zip

# ThingSpeak平台： https://cn.mathworks.com/help/thingspeak/get-a-channel-feed.html ================================================================== ### 读取例子： https://api.thingspeak.com/channels/205195.json https://api.thingspeak.com/channels/205195/feeds.json?results=2 https://api.thingspeak.com/channels/205195/feeds.json?start=2016-12-20%2010:36:17&end=2016-12-20%2021:06:46 https://api.thingspeak.com/channels/205195/feeds/last.json