This is a simple square-wave generator that basically uses the TimerOne library allow you to generate a PWM signal at pin 9.

You'll learn how to create an automation system to communicate 3 Arduinos via RS485.

Man and machine working together to create art.

Start sequence to race, then show winner for Hot Wheels type cars. Displays total race time, both car speeds and winning difference in ms.

A weather clock with RTC DS3231, 2 x weather sensor BME280, 20x4 LCD and brightness auto-adjust.

Magnetic levitation of an 11 cm (4.3") illuminated globe, rotating at a constant speed and nicely fitted inside a wooden lantern.

Not enough fingers to play clarinet? With this project you can delegate solenoids to push two side-keys. Awkward fingerings whaaat?

In this project it is presented 1-dimensional version of the classic game ‘Pong’ made with NeoPixel LED strip.

I used ten small vibrating motors for a musical performance with one performer on a (baby) grand Steinway piano.

Make your own DIY IR Remote and control some LEDs with it

An Arduino based Christmas tree decoration using basic electronic components and recyclable material.

Use Arduino, an OLED display and an AD9833 DDS module to create a useful wave generator for your lab.

Make your own quadruped robot with Arduino, 3D-printed, and Lego-compatible parts.

Closed loop universal motor control system using PID algorithm.

Improved version of the soldering iron controller for Hakko 907 iron. To simplify building the controller, LCD screen is implemented.

Magnet levitation toy using Arduino. Cheap and easy to make!

Need fast cheap laser rangefinder for your Arduino project? You can use a laser tape measure for this!

The aim is to convert basic symbols that represent the 26 English letters as mentioned under American Sign Language script and display.

Easy to build, but comparable with professional seismometers, homemade Arduino seismometer.

Garage parking sensor using addressable RGB LEDs to provide feedback to vehicle driver as they approach and reach stop (park) position.

A connected universal remote.

The device that creates beautiful arpeggiated sequences according to the musical theory.

How to build and configure a control unit based on Arduino for opening, closing and other actions for a motorized sliding door.

UltrasonicEyes is a fun and quirky project you can place somewhere and watch as it looks at things moving around in front of it. Freaky!