For instance, in the Uno board, pins D0 and D1 can be used as standard digital pins where you can connect common components like LEDs, ultrasonic sensors, and motors.

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.

A common hacker upgrade to an espresso machine is to improve stability and performance with a better temperature controller, but [Schematix]’s Smart Coffee project doesn’t stop there. I… ...

Inductive proximity sensors can also be used to track motion in conveyor systems, by detecting the regular passage of gear teeth. Application #3 – Foil Seal Detection Lastly, inductive proximity ...