A digital finger sensor to protect against theft.

Use a fleet of devices to monitor the soil in an agricultural field or greenhouse, and visualize the data remotely.

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

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

Sunglasses that serve an even more useful purpose than protecting the eyes of the blind. They can help them detect objects in front of them.

Transfer images over Bluetooth between an Arduino and an Android phone.

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

This device will allow you to open your door by asking Alexa to open it for you.

The correct way to make traffic lights for a 4-way intersection.

This rocket engine was designed with the priority to go to space!!!!

Using a blue laser and phosphorescent paper to illustrate what it means to sketch a sine wave around a circle.

Measure how fast your Hot Wheels car moves at different points on your track or use it to tell how fast your race was.

An aeroponic planter for indoor gardening and improved air purification.

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 camera that only has a one-pixel sensor. It moves an APDS-9960 across two axes to create a full-color image.

A simple to build clock with many features.

Automated environment for reptiles to promote good husbandry and enable maximum lifespan for animals in captivity.

A home automation and Internet of Things project using Arduino Mega 2560 and ESP32.

It's a low-cost and handmade robot with the mission to be attractive to the clients from businesses and help with the rate of services.

Send mini documents to a 16x2 LCD display.

Use the concepts in light painting to create a machine that can recreate bitmaps with a long-exposure camera using a single LED.

A theremin made out of two ultrasonic sensors.

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.