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 …
Read More »
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.
Read More »
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 …
Read More »
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 …
Read More »
The Arduino UNO is arguably the most popular Arduino board currently available. This Arduino UNO Pinout diagram reference will hopefully help you get the most out of this board: Arduino UNO Pinout Description The Arduino UNO board is divided into digital, analog, and power pins. There are pins with …
Read More »
In control systems, a controller corrects the output of a particular system to a target in the presence of errors and disturbances. The most popular type of controller is PID which is an acronym for Proportional, Integral, and Derivative. In this Arduino PID control tutorial, I will show you how …
Read More »
RFID technology has been around for quite a while. But it was only recently that hobbyist and makers was able to utilize this technology through the Mifare RC522 RFID module. In this article, I will show you how you can easily use cards as keys for anything, from attendance systems, …
Read More »
Using a keypad is an upgrade over using buttons for input on your Arduino project. Actually, a keypad is a set of 12 or 16 buttons wired so that the pin usage is reduced. In this tutorial, I will explain how a keypad matrix works and how to use it …
Read More »
The ESP8266 has been a blessing to makers who need to connect their Arduino to the Internet on the cheap. In fact, boards like the NodeMCU and WeMos which feature the ESP module have become overly popular. This is unsurprising given that these boards can replace the Arduino without a …
Read More »
Electronics projects like movement and obstacle detection, drone fleet management, and robots require a camera for capturing images. I personally recommend using a Raspberry Pi or BeagleBone Black for these kind of projects because the Arduino doesn’t have enough juice to handle the complexities of pictures and, more so, videos. However, if the …
Read More »