DC Voltage detection Sensor

This module is based on a resistive divider principle design, make the interface terminal input voltage reduced 5 times, Arduino analog input voltage up to 5V, then the input voltage of the voltage detection module can not be greater than 5V × 5 = 25V (if used 3.3V system, the input voltage can not exceed 3.3Vx5 = 16.5V). Because Arduino AVR chips used in 10 AD, so the resolution of the analog module is 0.00489V (5V / 1023), so the voltage detection module detects a minimum input voltage of 0.00489V × 5 = 0.02445V.

Parameters

• Voltage input range: DC0-25V
• Voltage detection range: DC0.02445V-25V
• Voltage analog resolution: 0.00489V

Wiring the DC input connector
   

• the positive terminal connected to VCC,
• the negative  connected to GND
• Output interface:
• "+" is 5V or 3.3V
• "-" then GND
• "s" Arduino connected to the AD pin

What's in the box?

1 x  Voltage detection Module

Resources

• Raspberry Pi https://kookye.com/2017/06/01/design-a-voltmeter-with-the-raspberry-pi-board-and-voltage-sensor/
• Interfacing Voltage Sensor with Arduino - Measure up to 25V using Arduino, tutorial  by Ravi in Electronics Hub
• Arduino 25V Voltage Sensor Module User Manual, by Henry's Bench
• Arduino Voltage Sensor 0-25V, by Superfish1000 in Instructables

Note: Stock is currently available in South Africa for national shipping!