A simple Arduino project that uses a temperature sensor to control two fans to help cool down a laptop on a laptop stand. Power is supplied by any 5V source and a mosfet switch is used to switch the fans on/off based on the current temperature under the laptop. I was able to see the fans reduce the temperature under the laptop from 32.8 – 30.8*C within 2 minutes. If the fans don't need to be on, the device will switch them off and go into deep sleep for 10 seconds, then check the temperature again.
Hardware:
- ESP32-C3 Super Mini
- SHT31 temperature sensor
- N-Channel Mosfet (16A 60V TO-220)
- 5V 0.2Amp Cooler Fans (30 x 30 x 7mm)
- 220 Ohm Resistor
