The 25V Voltage Sensor Module is a simple and useful analog voltage measurement module designed to monitor DC voltages up to 25V using a microcontroller’s analog input. It uses a resistor voltage divider to safely scale down the input voltage by a factor of 5, making it suitable for Arduino, ESP32, and other microcontroller projects. The module is easy to use and ideal for battery monitoring, power supply measurement, voltage detection, and DIY electronics projects.