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Interfacing 0-25V DC Voltage Measurement Module with Arduino
Description
This module is based on a resistive divider principle design, make the terminal interface input voltage reduced 5 times, a rduino analog input voltage up to 5V, then the input voltage of the module voltage detection can only not be greater than 5V × 5 = 25V (if used 3.3V system, the input voltage can not exceed 3.3Vx5 = 16.5V). Because A rduino AVR chips used in 10 AD, if the resolution of the analog module is 0.00489V (5V / 1023), if the voltage detection module detects a minimum input voltage of 0.00489V × 5 = 0.02445V.
Features
Size: 25mm × 13mm
Input Voltage Range: DC 0-25 V
Voltage detection range: DC0.02445V-25V
analog voltage resolution: 0.00489V
Output Voltage Range: DC 0-5V
Interface output: "+" connect to 5 / 3.3V, "-" connect to GND, "s" connect to the AD pin
Input interface: connect positive terminal to VCC, negative terminal to GND
wiring:
DC input connector:
the positive terminal connected to VCC,
the negative connected to GND
output interface:
"+" is 5 / 3.3 V,
"-" then GND,
"s" A rduino connected to the ad pins
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