GY-471 3A Range MAX471 Current Module Detection Sensor

GY-471 3A Range Current Sensor Module MAX471 module specialized for Ardu
This module can be used to test current and voltage.
Based on the voltage divider design principle of voltage test principle, the red terminal connector can reduce the input voltage 5 times. Analog input voltage up to 5v, voltage detection module input voltage is not greater than 5Vx5 = 25V (if using a 3.3V system, the input voltage is not greater than 3.3Vx5 = 16.5V). The AVR chip has 10-bit AD so the module has an analog resolution of 0.00489V (5V / 1023), so the minimum voltage for the input voltage sense module is 0.00489 Vx5 = 0.02445V.
The on-board MAX471 chip is used to test the loads current consumption.
Size: 19.5 * 20.3mm
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Paramenter:
Test voltage range: DC3 - 25V (Ardu at 5V) or DC3 - 16.5V (at 3.3V)
Test current range: DC 0 - 3A