This is a simple square-wave generator that basically uses the TimerOne library allow you to generate a PWM signal at pin 9.

You'll learn how to create an automation system to communicate 3 Arduinos via RS485.

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

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

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

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

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

A bit more accurate than __TIME__.

Control 256 relays! Seeing is believing!

An arduiNOOB friendly tutorial for beginners on daisy-chaining.

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

This code performs FFT with good accuracy.

Step by step approach is followed so that any hobbyist or design engineer can have a better understanding of the basic concepts.

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

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

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

A programmable, portable, rechargeable power supply based on Arduino featuring an OLED display for viewing V.I.P. of projects/prototypes.

A simple to build, but very sensitive electromagnetic field detector.

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

The Companion IC is a very cool looking Clock + Ohmmeter + Capacitance Meter + Diode Tester!

Measure rotation speed (RPM) with Optocoupler and Encoder disk and Arduino - Quick and Easy!

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

Arduino Nano and Visuino: Convert Acceleration to Angle From Accelerometer and Gyroscope MPU6050 I2C Sensor - quick and easy.

Goodbye calibration! Digitization of pH test paper! This is a pH meter that reads the color of the pH test paper.