ACS712 current sensor by Allegro is an Hall effect-based linear current sensor.

A quick tutorial on how the use the L298N Motor Controller with DC motors

Calibrating Atlas Scientific's EZO pH sensor using Arduino Uno.

Serial Studio is a multi-platform, multi-purpose serial data visualization and data acquisition software.

Using the legacy of brilliant mathematicians, this robot solve the cube in 18 seconds or less.

A simple method to notify a problem is to use email, It’s very usefully and simple to share, so I created a library to do it.

We're showing how to use KY-038 Sound Sensor using Arduino. You can control LED by clap with the help of Arduino and sound sensor.

Upon scanning the right tag and entering right pass, it will open door and send confirmation message otherwise it will send alert message.

I've created a simple menu with an LCD that controls what an LED does. The menu is easy to edit and adapt for various projects.

Alarm Clock with Arduino.

Using the RCWL-0516 radar sensor to detect motion.

In the first example, we will send “Hello world” command to blink the LED. In the second example, we will do bidirectional communication.

Learn how to quickly use the TM1637 Digit Display!

In this protip, I will show you how to build DS18B20 Digital Thermometer with Arduino.

Interface a 16x2 Liquid Crystal Display with Arduino Uno. Here we just use 4 wires.

Make your hardware push data to a Google spreadsheet.

Ever thought of controlling any electronic devices with your smart phone? Today I will show how to do it.

Small introduction about interrupts using Arduino.

Using an old VFD serial communication display for use with Arduino based microcontrollers.

Disassemble an old printer (in this case a dot matrix) and drive the stepper motor(s) for linear motion or rotation. With Arduino.

In this tutorial, you will learn how to drive DC, stepper and servo motors using an Arduino L293D motor driver shield.

How to get better results with HCSR04.

A basic introduction to the low cost and accurate HC-SR04!

+ LCD/OLED can be used to measure body temperature or to detect movement... in Celsius and Fahrenheit!