Voltage Detection Module

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

Parameters:

• Voltage input range: DC0-25V
• Voltage Detection range: DC0.02445V-25V
• Voltage Analog Resolution: 0.00489V
• DC input connector: Terminal cathode connected VCC, anode to GND
• Output Interface: "+" connect  5/3.3V, "-" connect GND, "s" the Arduino AD pins