I want to make a CD spot welder for battery packs or other stuff that cannot be soldered.

Here I want to tell you how to make incremental encoder from stepper motor.

A soft switch with integrated energy monitoring enabling spark free switching for electric vehicles and drones.

An Arduino Nano used as an IO expander on I2C for ESP8266. For example, add 8 digitals IO and 6 analog inputs.

In this tutorial, I am going to talk about the PCF8574 8-bit GPIO port extender.

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.

DIY Arduino hot air SMD rework station.

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

This is a tutorial on how to make it work.

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.

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

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

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.

FreeRTOS, simple, easy, robust, and optimised for Arduino IDE. Using FreeRTOS Semaphores to share and protect physical resources.

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