Voltage Sensor Module 0-25V

The Voltage Sensor Module 0–25V is a precision voltage detection module designed for microcontrollers like Arduino, Raspberry Pi, ESP8266, and NodeMCU. It uses a voltage divider circuit to safely measure DC inputs up to 25V and convert them into a readable 0–5V output for ADC pins.

Voltage Sensor Module 0-25V – High Precision DC Voltage Detection Module

The Voltage Sensor Module 0–25V is a highly reliable, compact, and accurate measurement module designed to help microcontrollers read voltages higher than their ADC limits. Most development boards such as Arduino, Raspberry Pi, NodeMCU, and ESP boards operate at 3.3V or 5V input levels and cannot directly measure high voltages. This module solves that by using a high-quality voltage divider circuit to scale down the voltage safely.

This sensor is widely used in battery monitoring systems, DIY electronics, IoT projects, solar systems, automation, robotics, and power management applications. It is ideal for projects requiring safe and precise DC voltage monitoring up to 25V.

Technical Specifications

Input Voltage Range: 0–25V DC
Output Voltage: 0–5V DC (safe for microcontroller ADC pins)
Module Ratio: 5:1 voltage divider
Accuracy: High stability and precision
Compatibility: Arduino, NodeMCU, ESP32, Raspberry Pi (with ADC module)
Dimensions: Compact, breadboard-friendly
Connectors: 3-pin header: GND, VCC, S (signal output)
Load Resistance: High impedance design
Operating Temperature: -10°C to 70°C

Key Features

Safe Voltage Scaling

Allows microcontrollers to measure voltages up to 25V without damaging ADC pins.

Easy Integration

Perfectly compatible with:

High Precision Voltage Divider

Stable resistors ensure accurate measurement for battery levels, solar panels, and power supplies.

Perfect for Robotics & IoT

Widely used with smart systems, remote monitoring, automation, and data logging projects.

Breadboard-Friendly Design

Small PCB size, 3-pin connector, and mounting holes for easy installation.

Applications

Battery voltage monitoring (Li-ion, Lead-acid, SLA, LiPo)
Solar energy systems
Robot power monitoring
UPS, power banks & inverter testing
Smart IoT energy meters
Industrial automation
DC power supply analysis
DIY electronics projects & student learning experiments

More related categories:

Precautions

Only measure DC voltage up to 25V—never AC.
Respect the polarity before powering the module.
Use clean, stable power (5V) for accurate readings.
Avoid short circuits when connecting to batteries.
Calibration may be required for high-accuracy measurement.
For Raspberry Pi, add an external ADC such as ADS1115, because Pi has no analog input.

How to Use – YouTube Tutorial

Watch Video:https://www.youtube.com/shorts/-4reJileDWk

4. Product Summary

The Voltage Sensor Module 0–25V is an essential tool for safely measuring high DC voltages using low-voltage microcontroller ADC pins. With its accurate voltage divider design, broad compatibility, and ease of integration, it is ideal for battery level monitoring, solar power measurement, robotics, IoT automation, and student learning projects.

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