Give 16-bit digital output or get 16-bit digital input from any Arduino pins.

Controlling power to the system using alarms based on voltages!

AKA how to build your own laboratory vortexer without spending a lot of money.

Make your own mini oscilloscope at home. It’s simple and easy to do!

A small device that will help you sorting resistors without wasting time with their color code.

Analyze the responses of a bandpass Butterworth and Chebyshev1 filter deployed to an Arduino Nano from the Wolfram Language.

A Bluetooth multimeter capable of resistance, voltage, current and continuity measurement. Made with Arduino Nano.

Single tap, double tap, triple tap, four-tap, Hold, Single tap and hold.

An arduiNOOB friendly tutorial for beginners on daisy-chaining.

Showcasing our spot welder, which is controlled by an Arduino Nano.

This micocontrollers laboratory is designed to speed up projects, and make easy and clean connections.

Did you run out of input pins? Don't worry, here is a solution without any shift registers.

A quick and compact Arduino Nano setup with four DIP switches to allow for mode selection. Power is provided by CR2032 battery package.

Probably the most useful Arduino project I've ever made! A automatic tester for a product I sell.

A bit more accurate than __TIME__.

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

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

Inexpensive to build but a very useful tool for every electronics laboratory.

Your personal universal electronics kit. More I/O pins. More devices. More distances. Remote wireless control. No bunch wires.

Did your somewhat expensive ($50) soldering iron just die? Well then fix it with another one!

A study for a linear measuring device with Arduino and photoelectric rotary encoder.

Control your Commodore C-64, reset C64, select Kernal, BASIC and Charset ROM, SD2IEC device#, info display.

I wanted to make an electronics learning kit suitable for ages 12 and above. Nothing fancy like Elenco's kits but It can be done at home.

Need fast cheap laser rangefinder for your Arduino project? You can use a laser tape measure for this!