Raspberry PI

314 (or so) Awesome Raspberry Pi Resources on Pi Day

314 (or so) Awesome Raspberry Pi Resources on Pi Day

I combed through my bookmarks, scoured links from old posts, and finally just started looking... everywhere. I discovered a lot of new people to follow, new material to read, and new projects to try out. I'll have no shortage of things to do and try out on the Pi now, and neither will you!

What is charlieplexing? (a Raspberry Pi demo)

What is charlieplexing? (a Raspberry Pi demo)

On past projects, when I needed multiple LEDs, I just connected each to its own GPIO pin. I knew the current only worked in one direction, but I didn't think to take advantage of that fact. Charlieplexing is a method for arranging multiple LEDs so as to use the minimal number of pins possible.

Connecting an Analog Joystick to the Raspberry Pi

Connecting an Analog Joystick to the Raspberry Pi

One of the coolest things about the Raspberry Pi is its GPIO pins. They’re just sitting there, waiting to be connected to all kinds of useful peripherals so your Pi can interact with the world around it. Power an LED to signal the user. Place a button in the

Creating a Flickering Candle Using an RGB LED on the Raspberry Pi

Creating a Flickering Candle Using an RGB LED on the Raspberry Pi

After getting PWM (pulse-width modulation) to work with an RGB LED last week, I was trying to think of what else I could do with an LED that demonstrated changes in color as well as intensity. I’m not sure why – maybe it was because we lost power in our

How to Use an RGB multicolor LED with Pulse Width Modulation (PWM) on the Raspberry Pi

How to Use an RGB multicolor LED with Pulse Width Modulation (PWM) on the Raspberry Pi

If you buy a kit with random LEDs, wires, switches, etc, you’re likely to end up with one or two of those funky little LEDs that appears to be white, and has 4 wires instead of 2. I had set mine aside and made a mental note to figure

Creating a "Simon" Game Clone on the Raspberry Pi

Creating a "Simon" Game Clone on the Raspberry Pi

Have you been around long enough to remember the popular Simon game from the 70s and 80s? There’ve been plenty of remakes over the years, but I had one of the originals when I was younger. It’s a game of patterns that tests your memory. It flashes a

Creating Music with Sonic Pi

Creating Music with Sonic Pi

After seeing Scott Fradkin live-code Sonic Pi for nearly an hour at Stir Trek - not only explaining what it was capable of but showing us too - it inspired me to do a little experimenting of my own once I got back home.