Measure the juice left in your AA or AAA batteries anytime using an Arduino Uno and a couple of jumpers.

This library creates an 8-bit IO port for Arduino by combining any 8 Arduino pins. With this library, one can send/get direct 8-bit data.

This project uses an ultrasonic distance sensor to create a pocket of wave interference where a small object can be levitated.

This library controls and drives motion of all types of bipolar stepper motors with 2 phase (4 terminals).

This is a library that allows any machine or robot to be controlled by G-code.

A technique for drastically reducing the pins required by a matrix keypad is described.

DIY Arduino hot air SMD rework station.

Did you ever get into a situation where you had to wire up two, three or more I2C sensors to your Arduino just to realize the limitation?

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

This is an Arduino camera module, using the surveillance camera's digital image processing chip-OV0706.

FreeRTOS, simple, easy to use, robust, optimised for Arduino IDE. Full access to FreeRTOS capabilities, within classic Arduino environment.

A time switching battery powered solar charged circuit, used to power an Arduino Uno and some peripherals.

We used a TI FDC1004 breakout with an Arduino to measure liquid level in a bottle using the capacitance between two adhesive copper strips.

Simple Arduino Uno - ESP8266 software serial integration.

If you can't find a voltmeter at home or anywhere else, then this hack is for you!

The soldering iron controller based on arduino that implements PID method to keep the temperature of the iron.

An Arduino powered floppy disk controller and reader/writer for making and writing disk images from and to old AmigaDOS floppy disks.

The cheapest micro soldering station in the world, using a cheap USB soldering iron.

A quick and simple guide on how to easily connect your Arduino to the pixy cmuCAM!

An Arduino powered floppy disk controller and reader for making disk images from old AmigaDOS floppy disks.

Ever wonder how much filament you actually used for a project or have an old mechanical ball mouse laying around to be recycled?

The software library to calculate moon age, sunrise and sunset time.

Get not only 5 volts but also 9, 12 volts (18 Watts max) out of any QC-compatible charger/power bank for supplying power hungry projects.

Things you should know using ESP8266 WiFi module for its safety and easiness as it's very delicate module to use.