A really economic street lighting system.

Use only 3 digital pins on your Arduino to display characters on the single digit 7-segment display.

The Memory Game

Wheelchair whose motion can be controlled using simple hand gestures.

A theremin made out of two ultrasonic sensors.

A robot which is controlled by an HC-05 module and receives commands using a Bluetooth terminal app.

Ariadne's Thread is a project born to fulfill the wish to automate an old game.

A line follower bot which can detect gas leaks and high temperature in a typical household and raise an alarm.

A large 4-digit 7-segment counter with LiPo backup, in case USB power is cut.

An alarm clock with no physical buttons, just a remote control.

In this project, use the YF-S201 1/2-inch water flow sensor to measure the water flow rate (L/min) and display it on an LCD.

Randomly select a destination for one wagon on a Timesaver layout or randomly select order of wagons for an Inglenook layout.

A single Arduino Uno/Mega can carry up to 14 RS-232 boards. Each board is distinguished by ID, which is set via a DIP switch.

Bongo Hero is inspired by Guitar Hero. You must tap bongos at the right time. Color changes and speed increases as you level up.

This is a cute linear stage that's about the size of a business card.

Now we can check out the depth of the sea level by using a pressure sensor (MS5803–01 BA) connected to an Arduino, and display sensor data.

Analyze digital inputs on up to six channels using the ATmega328 (e.g. Arduino Uno / Nano / Ethernet / Mini).

Low-cost, 3D-printed motorized turntables that feature swappable magnetic top plates.

This is a general purpose 3D-printed linear servo actuator (pusher style). Hope these save you some time on a future project!

Get the speed of your die-cast toy car!

An Ardiuno project using NeoPixels to create slowly changing christmas light pictures in my window.

I took an HC-05 and added it to my handheld GPS device to get coordinates on my Android tablet.

Basic weather system, in/out temp and humidity with heat index, dew point, pressure and weather prediction and time and date.

A pseudo theremin using the HackingSTEM finger sensors.