How much does the humidity decrease when we put a dehumidifier in our kitchen cupboards?
This project will use a WeMos module (ESP8266) to get the values of humidity and temperature from a Si7021 sensor and send it to IFTTT to log in a spreadsheet every 4 hours. It will be battery powered by a LiPo and even without any connectivity to WiFi, a button press will indicate the humidity level via a bar LED display.
Cactus is now finally deployed in the kitchen cupboard without any dehumidifier as a control. Every 4 hours it is pinging IFTTT with the humidity values as well as the LiPo battery voltage. Follow the live log in Google Sheets right here!
After a week, I will put in a dehumidifier to see whether the humidity levels are affected.
Where is the code ?
also what's the resistor value for battery to A0 ?