Use the IO Expander and Relay Expander with the Arduino to control up to 65,280 relays!

We want to create a cool gadget that can make a safe zone for your devices to be unlocked.

Nice looking wooden analog style clock with Arduino Nano and 1mA ammeters.

Build an Arduino heart rate monitor with a MAX30102 sensor and a 16x2 LCD.

One year ago I built a simple Arduino dice with my son. We have learned a lot in the meantime and it's time for an update...

Create a burglar-tripwire with the ultrasonic sensor.

A dress with my painting of flowers on the fabric; fireflies in the flowers blink according to wearer's heart-rate.

Accumulation of moisture in a closed up space like a bathroom can lead to the appearance of mould, which can cause health issues.

As the title says, this is a pretty simple PIR motion controlled relay using an Arduino Nano.

Cheapest and easiest Nixie clock in the world, the ONE TUBE™. Open source is the way. ( or use, UNO-Pro Mini/Micro-ESP )

When a Nerf gun doesn't have a scope, add a movable one with an Arduino and a servo!

A stereo VU meter built with an Arduino Nano and two NeoPixel LED rings.

An interactive robot that anyone can make! Otto is very easy to 3D print and assemble, walks, dances, makes sounds and avoids obstacles.

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

Arduino Nano 32x8 LED matrix displaying date, time, temperature and humidity with a motion sensor.

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!

Yet another useless Arduino clock, but i love it.

Someone has been eating my cookies! Thankfully Arduino is here to help find out who it is.

In this project, I will make an indoor gardening system to take care of my sweet plant and its beautiful flowers.

A digital clock using minimum components.

During the summers, many people get sunstroke because of playing in the sun for too long. So this device will prevent getting sunstroke.

A very useful project, made to monitor system resources without opening Task Manager.

I built a simple wood LED clock, using modern electronics and traditional wood and metal working techniques.

Christmas is near!