Smart ESP32 Solution to Optimize Mobile Tethering and Battery Management

The Smart ESP32 Solution to Optimize Mobile Tethering and Battery Management is designed to regulate how a smartphone handles charging while operating as a continuous mobile Wi-Fi router. At the core of the system is an ESP32 development board, which connects to the local wireless network and links directly to the ESP RainMaker app running on a user's smartphone. Through this cloud-connected application, the user can remotely trigger commands to the ESP32. When the ESP32 receives these control signals, its digital output pins actuate a connected relay module. The relay module functions as an electrically operated switch that physically opens or closes the charging circuit supplying power to the mobile phone. By toggling the relay state based on real-time battery status or scheduled intervals, the system prevents the smartphone from remaining in a continuous, overcharged state while tethered. This cyclical charging approach protects the phone's internal battery from accelerated degradation caused by sustained high temperatures and overcharging during heavy data-sharing tasks. Connecting wires are utilized to interface the ESP32 control pins with the relay module's signal inputs, establishing a reliable hardware link for automated power delivery control.