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.

The PIC16F877A microcontroller comes with a Capture Compare PWM (CCP) module which utilizes its 16-bit Timer1 module to generate or count pulses, among other things. I have already covered how to generate PWM in my previous tutorial. This time, we will look at how to implement capture and compare with …

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.

Last time, I showed how to get started with Microchip's Curiosity HPC board. I will now explore the use of the included buttons and LEDs on this microcontroller board.

As a lifelong PIC fan, I was super thrilled when Microchip sent me a free unit of their Curiosity HPC development board. I’ve been working on PICs for years by just mounting them on breadboards and using PICKit to flash programs. This takes time and so when I’m faced with …

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.

The DHT22 temperature and humidity sensor is a common sensor; in fact, there are tons of tutorials out there teaching you how to use it with your Arduino, Raspberry Pi, or other microcontrollers. What prompted me to write about this sensor is my curiosity about how it gives out two …

To kick off 2019, I would like to create a series of Arduino Robot projects that anyone can learn how to build. The first part of the series is the popular obstacle-avoiding Arduino robot.

I recently got my hands on a 3D gesture sensor from DFRobot and honestly, my brain is ringing with the possible projects I can do with it. Basically, it is a device that can sense hand movements in different directions. Imagine controlling anything just by waving your hands! Let's get …

Wouldn't it be cool if you built your own card login system just like in hotels? Because RFID modules are now easy to get, this is now very possible. This Raspberry Pi RFID project of mine is a simple login system that reads cards and tags. Every time a user …