This is the code for sending and logging data of devices to thingspeak cloud, which will be modified to AWS server. Hardware used-
- Nodemcu Esp8266 board
- PCB board
- SD card module
- 16 GB SD Card
- ACS 712 IC for current sensing
- DHT11 for temperature and humidity
Use the latest versiom of code to be uploaded to board. Latest version is 2.2 which doesn't have support for SD card.
Credits: The first versions of this code was made for Mr. Satheesh Telagamasetti, SOULS org., IIT Bombay. I am thankful for his vision of this device.