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

Receiving and sending the digital and analog signal through AD5669 interface with Arduino to detect the A/D pulses.

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

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

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

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!

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.

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

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

You'll learn what is the finality of standalone Arduino and how it is applied in real projects.

Learn how to submit your Arduino-based project. It may even get featured on the Arduino social channels!

Keypads are used in all types of devices, including cell phones, fax machines, microwaves, ovens, door locks, etc.

A RFID module connected to two LEDs.

This project can add two 3-digit binary numbers to turn into a 4-digit binary number. Math homework solved!

Did you ever wonder what happens between the time you click on "Upload" and your sketch starts running? Here's how you can find out...

In this tutorial, I am going to show you how to build a voltmeter with a big Nokia 5110 LCD display using Arduino.

How long have we been pressing this button? (Interruptions and EEPROM)

On this simple tutorial, we will explore how to discover colors using an Arduino and the TCS 3200 sensor, displaying it on an LCD.

I really want to make a Raspberry Pi laptop but just can't find the right size trackpad so in this project we will be salvaging an old one.

nRF24L01 radio transceiver provides very efficient and inexpensive way to establish communication between microcontrollers.