IoT - DHT22, LCD-I2C, Arduino UNO and Ethernet shield publish to Thingspeak
A trial of making an IoT device based on DHT22, LCD-I2C, Arduino UNO and Ethernet shield in order to publish to Thingspeak.com
I used Arduino Yun and Raspberry Pi (B and 2) for making my nodes of IoT, but I had to find a cheaper way of creating a device to send data to the cloud.
So I used a UNO/Ethernet shield combo for experimenting and here it is:
A device cheap enough, if you use clones, capable to spit data to Thingspeak.