Package Included

- 1  x GY-471 3A Range Current Sensor Module Professional MAX471 Module

Description 

- Current sens max: +/- 3A
- Current sens voltage: 3 to 36V
- Sensor output: 1V / Amp
- Dimensions: 20mm x 19.5mm

Sensor
- RS+.........Load positive supply (3 to 36V)
- RS-..........Connect to load or charger

Interface:
- RS+.........Alternative load positive supply (3 to 36V)
- GND.........Connect to loads 0V/GND supply
- OUT..........Current sensor output (1V / Amp, 3V max)
- SIGN........Current flow direction. An open-collector logic output (low = current flow from RS+ to RS-).
- GND.........Alternative GND (Connect to loads 0V/GND supply)
- RS-...........Alternative load/charger connection.

Reference

- https://www.youtube.com/watch?v=aFxPFoBZR1k

Video Reference