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Fun electronics tutorials from The Geek Pub!
In this tutorial let’s talk about UART communications basics! A UART (short for Universal Asynchronous Receiver/Transmitter) is an electronic component that you’ll find in all sorts of electronics. UARTs have been around since the early days of PCs and were mostly associated with MODEMs of the time because a high quality MODEM would of course […]
In this tutorial we’re going to learn about using a 555 timer in bistable mode. As mentioned in our monostable 555 timer tutorial, these timers have been around almost 50 years, being released in 1971! And still today they make a perfect timer for hobbyist and DIY projects as they affordable and simple to understand. […]
In this tutorial we’re going to make an Arduino TV B-Gone and its super simple. If you’re not familiar with a TV B-Gone, it’s a device that uses a small micro-controller to send the IR off codes for every TV make and model on the planet. This is a super handy little device to have […]
In this tutorial we will learn how to setup an IR remote for an Arduino. IR remotes can be used in your projects for all kinds of things. You can use an IR remote to turn on and off a device, LED, relay, or even use it to steer an Arduino robot or automated vehicle. […]
If you’ve been doing Raspberry Pi or Arduino projects you’ve likely encountered the term I2C being tossed around, or at least seen the I2C pins on the devices and wondered what they do. Put simply, I2C is a point to multi-point serial communications bus for both on-board and off-board devices. I2C can operate at up […]
One of the first questions people new to Raspberry Pi or Arduino projects usually ask is “What is PWM?” or “What is Pulse Width Modulation?” In this quick tutorial we will quickly cover this topic and hopefully make some sense out of it. In many of our articles we’ve talked about PWM conceptually, without going […]
In this project tutorial we’re going to build a super easy Arduino dice circuit. It’s a great learning project and one of the first project a lot of people new to the Arduinos or micro-controllers in general like to do because it is simple to understand. We’ve added a neat twist to our dice circuit […]
When I got my first Arduino the first thing I thought was “Wow! I’d love to be able to control this thing from a web page!”, but of our course I didn’t have an Ethernet shield. So recently I decided to grab a shield from Amazon and see what I could do. First things first […]
Having your Arduino aware of temperature and humidity adds some really neat real world use cases for your Arduino projects, so in this tutorial we will focus on using Arduino temperature sensors in our projects! Specifically we will focus on the Adafruit DHT11 and DHT22 temerature and humidity sensors. Since we will be building off […]
One of the first projects many people like to do with an Arduino is wiring up an LCD display and programming it. This is because LCD screens have so many applications in the real world. You can display information to the user, error and diagnostic codes, and even fun little animations. Creating a game on […]