Gy-471 Max471 Module

GY-471 3A Current Sensor Module MAX471

Bidirectional Measurement Phone Portable Device Battery Capacity Charge Discharge Power Monitoring

     It is a Max471 3A current measurement sensor module. It transmits the measurement result as analog voltage with the resistor division principle. It measures the supply passing through the RS pins. Due to the voltage division, the signals drop by 5 times. In this way, the measurable voltage range increases. In 5V systems it can measure electrical signals up to  25V. In 3.3V systems the maximum input voltage can be 16.5V. Arduinos work with 5V and have 10 bit adcs. You will have a precision of 5V /1023= 0.00489V. You can find the real value of the signal reduced by 5 times by multiplying by 5. Measurement is made with a precision of 0.00489 x5 = 0.02445V. The current calculation is made with the voltage formed on the 2000ohm resistor on the board.

     It can be easily mounted with 2 mounting holes. The RS pins are connected to the board with 2 terminal sockets. At the same time the rs pins are also available on the 6 pin header sockets.

Features:

•     GY-471 max471 sensor module
•     It can work on the high side ( High Side ).
•     Operating voltage: 3V to 25V ( 16.5V in 3.3V systems)
•     Current measurement range: DC 0 / 3A
•     High precision measurement resistor on the board.
•     Precision: 2%
•     It can make bidirectional measurement.
•     Maximum operating current: 100uA
•     Sleep mode current:  18uA
•     Color: Purple
•     Operating temperature:   -20C  / 65C
•     Dimensions:  20mm x 20mm
•     Weight:  4gr

Package contents:

•    1 Piece  GY-471 Max471 Sensor Module
•    1 Piece 2 pin terminal block
•    6 Pin male header