Voltage Sensor Module 0-25V DC

Voltage Sensor Module 0-25V DC Overview

The Voltage Sensor Module 0-25V DC is a compact, reliable voltage measurement solution designed for hobbyists, students, and professionals. Using a precision voltage divider (5:1), the module scales input voltages up to 25V down to a 0-5V analog output that can be read by ADC inputs on development boards such as Arduino and Raspberry Pi. It is ideal for battery monitoring, power management, solar systems, robotics, and general voltage detection tasks.

Key Features

• Wide input range: Measures DC voltage from 0 to 25V.
• Analog output: Proportional 0-5V analog signal compatible with ADC pins.
• High accuracy: ±1% accuracy for stable and reliable readings.
• Easy integration: 3-pin header (VCC, GND, Signal) for quick hookup.
• Voltage divider ratio: 5:1 scaling for safe ADC input levels.
• Overvoltage protection: Protective circuitry to reduce risk from spikes.
• Operating voltage: Works with 3.3V to 5V logic systems.
• Compact form factor: Small, lightweight, and easy to mount.

Technical Specifications

• Input Voltage Range: 0 to 25V DC
• Output Voltage: Analog 0-5V proportional to input
• Voltage Divider Ratio: 5:1
• Accuracy: ±1%
• Operating Voltage: 3.3V to 5V DC
• Interface: 3-pin header (VCC, GND, Signal)
• Dimensions: Compact module, easy to mount

Applications

• Battery voltage monitoring and telemetry
• Power supply regulation and verification
• Voltage detection in automation and control systems
• Solar power system monitoring
• DIY electronics, maker projects, and prototyping
• Robotics and embedded systems

Wiring and Integration (Arduino Example)

Connecting the module is straightforward:

• VCC -> 5V (or 3.3V if using 3.3V logic)
• GND -> Common ground with your microcontroller
• Signal -> Analog input (e.g., A0 on Arduino)

With the 5:1 divider, an input of 25V corresponds to approximately 5V on the Signal pin. Read the ADC value and scale it back to the actual voltage using the divider ratio (measured_voltage = adc_voltage * 5).

Installation Tips and Safety

• Always share a common ground between the voltage source and your microcontroller to ensure accurate readings.
• Do not exceed the 25V input rating to avoid damaging the module.
• For higher accuracy, perform a one-point or two-point calibration in software to compensate for wiring and ADC tolerances.
• Use proper isolation or filtering if measuring noisy power sources.
• Although the module includes overvoltage protection, avoid exposing it to sustained voltage spikes.

Why Choose This Voltage Sensor Module

This module combines accuracy, simplicity, and safety in a compact package. Its 3-pin interface and standard 0-5V analog output make it ideal for quick integration into Arduino, Raspberry Pi, and other development platforms. Whether you are monitoring batteries, managing a solar array, or building an embedded system, this voltage sensor module offers an efficient and reliable way to measure DC voltage up to 25V.

Note: Images are for illustration purposes only. Actual product may vary.