DIY 3144 Hall Effect Sensor Module

DIY 3144 Hall Effect Sensor Module. This module has north and south poles, and when it detects magnetic movements close to these poles, the nearby pole works.

South. The pole is close to the blue light and the north pole is close to the red light.

When the south pole detects magnetic movement, the blue light turns on and the S pin outputs at low level.

When the north pole detects magnetic movement, the red light turns on, N The pin outputs at low level;

When there is no magnetic movement, the blue and red indicator lights at high level.