Analog Ceramic Vibration Piezoelectric Sensor Module Piezo Vibration Sensor For Arduino

1. has the signal output instructions.

2. single signal output.

3. effective signal output for low level.

4. sensitivity adjustable pure tone ().

5. have the field cuts have signal output

6. circuit boards output switch quantity! (can be directly by SCM)

Linear Hall magnetic module and a digital interface, built-in 13 LED build a simple circuit to

produce a magnetic field warning lamp 13 comes with digital interfaces of the LED, the linear Hall sensor magnetometer access number 3 interface, when linear Hall magnetometer Sensor senses a key signal, LED lights, otherwise off.