Voltage Detection Sensor Module For Arduino
₹18.88 incl. GST (₹16.00 + GST)
Product Description
The 25V Voltage Sensor Module is a simple and practical analog voltage measurement module designed to measure and monitor DC voltage levels up to 25V using a microcontroller’s analog input. It uses a resistor voltage divider circuit to reduce the input voltage to a safer level that can be read by an ADC.
The module scales the input voltage down by a factor of 5, allowing a microcontroller to monitor higher DC voltages than it could measure directly. Its straightforward design makes it easy to integrate into Arduino, ESP32, STM32, and other embedded electronics projects.
This module is particularly useful for battery voltage monitoring, DC power supply measurement, voltage detection, robotics, automotive electronics, and DIY projects where real-time voltage measurement is required.
Features
- DC voltage measurement module
- Measurement range up to 25V DC
- Uses resistor voltage divider
- Input voltage scaled down by 5:1
- Analog voltage output
- Easy to interface with microcontrollers
- Suitable for Arduino and other development boards
- Simple and compact design
- Useful for battery and power supply monitoring
- No external signal-conditioning circuit required for basic use
Specifications
| Parameter | Specification |
|---|---|
| Module Type | Voltage Sensor Module |
| Measurement Type | DC Voltage |
| Maximum Input Voltage | 25 V DC |
| Voltage Divider Ratio | 5:1 |
| Output Type | Analog Voltage |
| Interface | Analog Output |
| Circuit Type | Resistor Voltage Divider |
| Application | DC Voltage Measurement |
| Compatible Controllers | Arduino, ESP32, STM32 and other ADC-capable boards |
Working Principle
The module uses a resistor voltage divider to reduce the input voltage before it reaches the analog input of a microcontroller.
For example, when a 25V DC input is applied, the voltage divider reduces it to approximately 5V at the module output. The microcontroller can then read this scaled voltage through its ADC and calculate the original input voltage using the divider ratio.
Formula:
Input Voltage ≈ ADC Voltage × 5
The actual calculation should account for the ADC reference voltage and resistor tolerances for improved measurement accuracy.
Interfacing
The module can be connected to a microcontroller using its voltage input, ground, and analog output connections.
It can be used with:
- Arduino
- ESP32
- ESP8266
- STM32
- Raspberry Pi with a suitable external ADC
- Other ADC-enabled microcontrollers
When using a controller with a 3.3V ADC, ensure that the maximum scaled output voltage does not exceed the controller’s ADC input limit.
Applications
- Battery voltage monitoring
- DC power supply monitoring
- Solar battery monitoring
- Voltage detection
- Arduino voltage measurement
- ESP32 voltage monitoring
- Robotics projects
- Automotive electronics
- IoT monitoring systems
- Embedded systems
- DIY electronics
- Portable power systems
- Power management projects
- Prototype development
Package Includes
- 1 × 25V Voltage Sensor Module
Product Disclaimer
The module is designed for DC voltage measurement up to approximately 25V. Do not exceed the specified maximum input voltage, as excessive voltage may damage the module or connected microcontroller.
The actual measurement accuracy depends on resistor tolerances, ADC resolution, reference voltage, wiring, and calibration. For accurate measurements, calibration against a reliable multimeter is recommended.
When using the module with 3.3V microcontrollers, verify the scaled output voltage before connecting it to the ADC input.
Product images are shown for illustrative and representational purposes only. The actual product colour, dimensions, component placement, and appearance may vary slightly depending on the manufacturing batch.
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