KiCad project files and arduino code for an in-expensive and simple phase-locked-loop driver for piezo-electric ultrasonic transducers. Principle of operation The driver exploits the fact that, at ...

I develop embedded systems for my co-workers (physicists) to use. I started using the Arduino environment so that they can make code modifications, using the platform of their choice, out in the ...

The Arduino software environment, including the IDE, libraries, and general approach, are geared toward education. It’s meant as a way to introduce embedded development to newbies. This is a … ...

On the other hand, the Arduino IDE only lets you program Arduino boards with the Arduino programming language, which is based on C++. With that over, let’s make the Arduino blink its internal LED!

The code includes two Arduino libraries: one for the servo and another for the ultrasonic sensors. The main code is a simple 14-line piece with a simple if-else statement you can readily modify.

PIR Pin “+” connects to Arduino +5. PIR Pin “-” connects to Arduino gnd. PIR Pin “out” connects to Arduino Digital 2. Here is the Arduino code for the Parallax sensor ...