This sensor is available in multiple variants and I’ll be using the ‘HC-SR05’ variant. It can easily detect range between 2 to 450 cm and has 5 different pins, out of which, we don’t need ...

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.

After some searching, I ended up using a microcontroller and a piece of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale ...