This 12 pushbutton piano plays the 4th octave with an optional added 3rd and 5th octave, controls note length and pitch with two pots.

Using a blue laser and phosphorescent paper to illustrate what it means to sketch a sine wave around a circle.

The easy method to determine free fall detection with the help of a simple 3-axis accelerometer.

Designed for crew rowing, this speedcoach is designed to track split times and total meters traveled.

Send mini documents to a 16x2 LCD display.

A 16-step sequencer for bass and drum sounds. Use the general Midi sounds stored in the VS1053.

This device will allow you to open your door by asking Alexa to open it for you.

A quick build for an Arduino Uno that uses a countdown timer to open a servo motor gate in order to use it as a lock.

This rocket engine was designed with the priority to go to space!!!!

Measure how fast your Hot Wheels car moves at different points on your track or use it to tell how fast your race was.

An aeroponic planter for indoor gardening and improved air purification.

It's a low-cost and handmade robot with the mission to be attractive to the clients from businesses and help with the rate of services.

A theremin made out of two ultrasonic sensors.

Our device is for primary care physicians as well as at home patients to treat Benign Paroxysmal Positional Vertigo with ease.

I sleep a lot. For this, I wanted to make a timer. I want to sleep just four hours. Life is very short!

Automated environment for reptiles to promote good husbandry and enable maximum lifespan for animals in captivity.

A simple to build clock with many features.

Are you tired of looking at spinning hands or plain numbers? This clock gives you the time in English!

A home automation and Internet of Things project using Arduino Mega 2560 and ESP32.

Sometimes you need to generate a analog signal from a digital source a DAC or a digital to analog converter helps you do this.

Learn how to create a circuit to increase the electrical current of the Arduino pins to activate loads that need more electrical current.

In this article, you will learn how to implement a feature to monitor the real-time clock battery and prevent problems in the circuit.

8x8 RGB LED matrix x 8 = 16x32 RGB LED matrix.

Automated environment for reptiles to promote good husbandry and enable maximum lifespan for animals in captivity.