DC Voltage Sensor Module (0-25V) for Arduino


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  • A simple but very useful module which uses a potential divider to reduce any input voltage by a factor of 5.
  • This allows you to use the analog input of a microcontroller to monitor voltages much higher than it capable of sensing.
  • For example, with a 0-5V analog input range you are able to measure a voltage up to 25V.
  • The module also includes convenient screw terminals for easy and secure connection of wires.
  • This module is based on the principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller
  • Arduino analog input voltages up to 5 v, the voltage detection module input voltage not greater than 5Vx5=25V (if using 3.3V systems, input voltage not greater than 3.3Vx5=16.5V).
  • Arduino AVR chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023), so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V.


  • Input voltage : 25v DC max
  • Divider ratio : 5:1
  • Output voltage : 5v DC (input/5 input*0.2)
  • Output Current : 600mA (MAX)
  • Voltage detection range : DC0.02445V – 25V
  • Voltage analog resolution : 0.00489 V
  • Size : 25mm x 13mm
  • Output Interface :
    “+ ” connected 5/3.3V
    “-” connected GND
    “s” connected Arduino AD pins
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DC Voltage Sensor Module (0-25V) for Arduino


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