Max471 Voltage Sensor Module 3A - GY-471

Max471 Voltage Sensor Module 3A - GY-471

This module can be used to test current and voltage.

The voltage testing principle is designed according to a resistor divider principle that can reduce the input voltage of the red terminal connector by 5 times. The analog input voltage is up to 5 V, and the input voltage of the voltage detection module is not greater than 5Vx5 = 25V (if a 3.3V system is used, the input voltage is not greater than 3.3Vx5 = 16.5V). The AVR chip has a 10-bit AD, so the resolution simulated by this module is 0.00489V (5V/1023), thus the minimum voltage of the input voltage detection module is 0.00489 Vx5 = 0.02445V.

The MAX471 chip on the board is used to test the current consumption of the load.

Test voltage range: DC3-25V (for Arduino operating at 5V) or DC3-16.5V (operating at 3.3V)
Test current range: DC 0-3A
Size: 19.5*20.3 mm
Package contents:
1 x MAX471 voltage and current sensor Show More