Free Shipping 50pcs/lot Voltage Sensor for Arduino electronic building blocks
This module is based on the design principles of the resistor divider, to make the terminal interface input voltage narrow five 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 (3.3V if used system, the input voltage can not exceed 3.3Vx5 = 16.5V). Because Arduino AVR chips used in 10 AD, so the resolution of this module is the analog 0.00489V (5V / 1023), so the voltage detection module detects a minimum input voltage of 0.00489V × 5 = 0.02445V.
Input voltage range: DC0-25V
Voltage detection range: DC0.02445V-25V
Voltage analog resolution: 0.00489V
DC Input interface: the positive terminal connected to VCC, GND negative pole
Output interface: “+” then 5 / 3.3V, “-” then GND, “s” take the Arduino pin AD
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