When reed switch is opened, pin 2 of Arduino goes high with the help of the pull-up resistor R2, and the alert signal is available through the piezo-speaker PZ1 (not an active piezo-buzzer). At the ...

Run arduino-cli compile -b <fqbm> Upload Project to Board Ensure your user is a member of the dialout group, then run arduino-cli upload -b <fqbm> -p <port> .

That’s right, these parking sensors are powered by an Arduino board, and the only extra components that were used in the project are a HC SR04 ultrasonic sensor, an active buzzer, and jumper wires.

100V 500mA reed switch magnetic sensor is only 2.3mm high Standex Electronics has created a series of mini magnetic field sensing reed switches, optimised to control up to 10W, 200V or 500mA. Called ...