The Okdo TelePort tilt sensor. There is a metal ball in the sensor. When the ball touches the bottom, the circuit is connected. As a tilt switch, it is also dubbed as a ball-type tilt-sensing trigger switch. When it is inclined towards the trigger end(two metal legs), the inner circuit is connected and low levels are output when it is inclined to another end or in horizontal level, the inner circuit is in OFF state and high levels are output. Here is the principle of tilt sensor to illustrate how it works. Compatible with RJ11 6P6C OKdo TelePort Control boards and expansion shields
Ideal for use cases like movement alarms and motion counting