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 ...

To interface reed switch with Arduino we need to build a voltage divider circuit as shown in the figure below. Vo is +5V when the switch is open and 0V when the switch is closed. We are using a ...

The Reed Switch Module project demonstrates how to detect the presence of a magnetic field using a reed switch with an Arduino Mega. When a magnet is close to the reed switch, it closes the circuit, ...

Initially, when the door is closed, the magnet on the door is close to the reed switch (normally-open type) on the door frame and hence the reed switch is closed. So pin 2 of Arduino is ‘high.’ When ...

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.