Voltage Detection Module – 0–25V DC Divider for Arduino

The Voltage Detection Module is a resistor divider-based board designed to measure higher DC voltages using microcontroller analog inputs. It scales the input voltage by a factor of 5, allowing safe measurement of up to 25V DC when used with a 5V ADC system. The module provides stable and predictable voltage scaling suitable for 10-bit ADC resolution such as Arduino AVR boards. It ensures reliable signal conditioning while protecting the analog input from overvoltage. Ideal for battery monitoring, power supply measurement, and embedded voltage sensing applications.

• Resistor divider scaling ratio 5:1
  
• Supports up to 25V DC input (5V ADC)
  
• Supports up to 16.5V DC input (3.3V ADC)
  
• Compatible with Arduino 10-bit ADC
  
• Analog resolution 0.00489V per step @5V
  
• Minimum detectable input 0.02445V
  
• Direct VCC and GND terminal interface
  
• Stable linear voltage reduction
  
• Simple three-pin analog output
  
• Compact PCB design for easy integration
  
• Suitable for battery voltage monitoring
  
• Protects ADC input from overvoltage
  

• Input Voltage Range (5V ADC): 0–25V DC
  
• Input Voltage Range (3.3V ADC): 0–16.5V DC
  
• Voltage Division Ratio: 5:1
  
• ADC Compatibility: 10-bit (0–1023 levels)
  
• ADC Reference Voltage: 5V or 3.3V
  
• ADC Resolution @5V: 0.00489V per step
  
• Minimum Detectable Input: 0.02445V
  
• Input Interface: Screw Terminal (VCC, GND)
  
• Output Interface: Analog Signal Pin
  
• Signal Type: Linear Scaled DC Output
  
• Operating Temperature: -20°C to 85°C
  
• Board Type: Passive Resistor Divider Module

• Voltage Detection Module Manual
• Voltage Detection Module 3D Model

• How to use ARDUINO VOLTAGE SENSOR | ARDUINO VOLTAGE SENSOR Code and Circuit Diagram