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GY-471 3A Range MAX471 Current Module Detection Sensor - Purple
Description: This module can be used to test the current and voltage. The principle of voltage test based on principle of resistive voltage divider design£¬ can make the red terminal connector input voltage to 5 times smaller. analog input voltages up to 5v£¬ the voltage detection module input voltage not greater than 5Vx5=25V (if using 3.3V systems£¬ input voltage not greater than 3.3Vx5=16.5V). AVR chips have 10-bit AD£¬ so this module simulates a resolution of 0.00489V (5V/1023)£¬ so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V. The MAX471 chip on the board used to test the consume current of the load. Paramenter: Test Voltage range: DC3 25V (Arduino work on 5V) or DC3 16.5V (work on 3.3V); Test Current range: DC 0 3A