Projects

This project makes the “dots” on a dot matrix look like they are pebbles in a container. Tilt the device on one side and the dots fall toward that side. The same goes if the device tilts to the other side.

This ESP32-powered project allows you to write messages to a MAX7219 LED matrix display using your smartphone. Scaled up, this can be used as a WiFi message board for schools or signages for businesses.

For this article, I will show you how to use an ESP32 microcontroller as a magnetometer - a device that measures the direction and strength of a nearby magnet. In the absence of a nearby magnet, the device detects the Earth’s magnetic field. Hence, a compass is a type of …

In this article, I will guide you to the steps on how to build a WiFi servo controller project using the WeMos D1 Mini ESP8266 breakout board.

The ESP32 has become one of my favorite microcontrollers as it's compact, relatively cheap, and contains 125% higher memory than an Arduino UNO.

Introduction This week’s Arduino project is a classic one and ideal for beginners. Here I will be showing how to build a simple clap switch for an RGB LED strip. Basically, a microphone captures the sound of the clap and converts it to a voltage. The Arduino processes that voltage …

Flame sensors are found from the simplest gas stoves to huge industrial plants. There are different types of fire sensors -- some cheap, some expensive. Yet they’re all built for one single purpose: detect fire. In this article, I will guide you on how to build a flame sensor with …

In general terms, a magnetometer measures the magnetism of objects or places. In fact, a compass is a type of magnetometer. This project demonstrates how to use the HMC5883L magnetometer IC as a compass with an Arduino microcontroller.

This project demonstrates how to read data from the DHT22 temperature and humidity sensor and send that data to the web using an ESP8266 via MQTT.

This project demonstrates how two Bluetooth modules connect with each other. I’ll be featuring DFRobot’s Input Shield V2 as the transmitter/controller and Seeed’s ShieldBot, which was seen on my Bluetooth RC Car project, will act as the receiver.