Description

The Voltage Sensor Module is a compact and reliable electronic component designed to measure and monitor DC voltage accurately. Built for seamless compatibility with Arduino and other microcontrollers, this module allows users to safely detect voltage levels by stepping them down using a precision voltage divider. It is an essential tool for Arduino users, students, engineers, and DIY enthusiasts working on embedded systems and automation projects.

This module can measure voltages up to 25V DC, ensuring safe and accurate readings without damaging sensitive analog input pins. It is widely used in battery monitoring, solar energy systems, robotics, and power supply testing. Its compact size, ease of use, and dependable performance make it suitable for both beginners and professionals.

Connecting the module with Arduino is simple. Connect the VCC pin to the positive terminal of the voltage source, GND to the ground, and the Signal (S) pin to an analog input such as A0. With basic programming, Arduino converts the analog signal into real-time voltage readings, making it ideal for educational and practical applications.

Students frequently use this module in minor and major academic projects such as digital voltmeters, smart energy meters, and battery health monitoring systems.

Voltage Sensor Module Features

• Measures DC voltage up to 25V safely
• Built-in precision voltage divider
• Accurate and stable analog output
• Compatible with Arduino, ESP8266, ESP32, and Raspberry Pi
• Compact, lightweight, and easy to install
• Ideal for educational and DIY electronics projects
• Protects microcontrollers from high voltage damage

Voltage Sensor Module Specifications

• Input Voltage Range: 0–25V DC
• Output Voltage Range: 0–5V Analog
• Operating Voltage: 3.3V–5V
• Voltage Detection Ratio: 5:1
• Output Type: Analog Signal
• Compatibility: Arduino UNO, Nano, Mega, ESP Boards
• Mounting Type: PCB Module
• Dimensions: Approx. 4.3 × 1.3 cm

Voltage Sensor Module Applications

• Battery voltage monitoring systems
• Solar power and renewable energy projects
• Arduino and IoT-based automation systems
• Power supply and charger testing
• Robotics and embedded systems
• Smart energy meter prototypes
• Educational experiments and student projects

Voltage Sensor Module Package Includes

• 1 × Voltage Sensor Module

FAQ

Q1 What is a voltage sensor module?
A voltage sensor module is a small electronic circuit board that measures DC voltage levels and sends the reading to a microcontroller like Arduino. It uses a precision voltage divider to safely step down high voltages (up to 25V) to a readable range (0–5V). It is widely used by students, engineers, and hobbyists in India for battery monitoring, solar projects, and DIY electronics. It is compact, affordable, and easy to use, and no soldering is required.

Q2 How does a voltage sensor work?
A voltage sensor module works on the principle of a voltage divider circuit. It has two precision resistors internally that step down the input voltage (0–25V) to a safe range (0–5V), which Arduino analog pins can read. Arduino then converts this analog value into the actual voltage using a simple formula in the code.

Q3 How to connect a voltage sensor?
Connecting a voltage sensor module is very simple. Connect the VCC pin to your voltage source positive terminal, GND pin to ground, and Signal (S) pin to the Arduino analog pin A0. Then use the analogRead() function in your Arduino code to get voltage readings. No extra components are needed, making it a plug-and-play module.

Q4 What is the use of a sensor module?
A voltage sensor module is used to measure and monitor DC voltage levels in electronic circuits safely. Common uses include battery voltage monitoring, solar panel output tracking, power supply testing, and smart energy meter projects. It protects your Arduino from high voltage damage by stepping down the voltage before sending it to analog input pins.

Q5 What are the types of voltage sensors?
There are mainly four types of voltage sensors used in electronics. The first is the resistive voltage divider sensor, like this module, used for DC voltage measurement up to 25V. The second is the Hall effect voltage sensor, used for both AC and DC contactless measurement. The third is the differential voltage sensor, which measures the voltage difference between two points. The fourth is the isolation amplifier sensor, used in high voltage industrial applications for safe measurement. For Arduino and DIY projects, the resistive voltage divider type is the most commonly used in India.