DC 0-25V Voltage Detection Sensor Module

The DC 0-25V Voltage Detection Sensor Module measures DC (Direct Current) voltage from 0.02445V up to 25V and outputs an analog signal to your microcontroller. The voltage sensor uses a precision resistor divider (two resistors that scale down the input to ADC-safe levels) built directly onto the PCB. The arduino voltage sensor connects to any analog pin without extra components. No coding library is needed to start reading values.

The dc voltage sensor has an analog resolution of 0.00489V per ADC step. One non-obvious detail — the module draws a small continuous current through its resistor divider even at idle. Disconnect it between measurements on battery-powered builds. The honest limitation is the 25V ceiling. Exceeding this permanently damages the resistor network. The 25v voltage detection sensor works with Arduino, ESP32, and STM32 analog inputs. To start, connect VCC to 5V, GND to GND, and signal to an analog pin. StemVolt supplies this module tested with confirmed analog output.

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Features:

• Voltage detection range from 0.02445V to 25V covers single-cell lithium through 24V DC systems
• Resistor divider on PCB scales the 25V input to a safe 5V ADC-compatible output voltage level
• voltage sensor datasheet confirms passive sensing design drawing minimal current from the monitored source

Technical specifications:

Applications:

• Battery level monitor uses this sensor to display remaining voltage on a 12V battery project
• DC 0-25V Voltage Detection Sensor Module reads power supply output and shows voltage on an LCD screen
• voltage detection sensor feeds analog data to an ESP32 for real-time remote voltage monitoring over Wi-Fi
• Adjustable regulator test bench reads output voltage via analog pin and plots changes in serial monitor

Package includes:

• 1 x DC 0-25V Voltage Detection Sensor Module