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.

A theremin made out of two ultrasonic sensors.

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.

This project will show you how to transmit variables to control a servo motor.

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

A beginner project utilising an Arduino and a BME280 sensor capable of giving you 4 environmental readings.

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.

A robot which is controlled by an HC-05 module and receives commands using a Bluetooth terminal app.

We will teach you that it is possible to write only one Serial.print line to display several messages.

Ariadne's Thread is a project born to fulfill the wish to automate an old game.

A line follower bot which can detect gas leaks and high temperature in a typical household and raise an alarm.

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.

A large 4-digit 7-segment counter with LiPo backup, in case USB power is cut.

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

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

Replace all your remote controls with your phone and Arduino.

Program Arduino boards without using traditional USB cables.