A quick build for an Arduino Uno that uses a countdown timer to open a servo motor gate in order to use it as a lock.

Learn how to create a circuit to increase the electrical current of the Arduino pins to activate loads that need more electrical current.

In this article, you will learn how to implement a feature to monitor the real-time clock battery and prevent problems in the circuit.

Use an Android device to control the color of a NeoPixel via a Bluetooth connection.

An analog-style BMP180 barometer.

When my ultrasound sensor stopped working, I decided to improvise by making an obstacle avoidance bot using IR sensors (cheaper too).

How to realize a servo and water sensor function using simple raw materials.

How to connect A6 GSM GPRS module with Arduino and also work with “AT” commands.

Remotely control door via web with pattern password protected. Your door is securely controlled from anywhere through Internet.

The short project for beginners to get some practice in using LED lighting with the sound sensor.

Use a positioning servo motor to rotate a bubble blower wand from a pool of bubble soap to a blower.

Awesome gesture controlled robot tutorial using Arduino and PAJ7620 sensor.

Plays melodies on an Arduino with minimal SRAM (variable memory) consumption. Allows for other tasks to be executed simultaneously.

Replace all your remote controls with your phone and Arduino.

You can turn on or off the 16x2 LCD via your smartphone and also you can send the text message over Bluetooth.

If door is opened, Arduino sends a message to your Facebook Messenger.

Timelapses are great. Let us spice things up!

Voltmeter can measure voltage up to 50VDC. It automatically calibrates when voltage of power supply is unstable.

If there was an Avengers game for Atari 2600, the soundtrack would sound like this...

Got a KY-016? Stick it straight onto your UNO and start attracting unicorns! No soldering. No schematics. No freaking Fritzing.

This article explains how to generate DTMF tones only using Arduino Uno.

A simple obstacle avoiding robot with 3D-printed and salvaged parts.

It is a miniature counterpart of radio altimeter used on commercial aircrafts to be used with RC aircrafts and multirotors.

Introducing a super easy automated control labyrinth marble maze.