So this is a project that has maybe been percolating for 7 years or so and now I feel confident enough to tackle it!
Confession, in moments of inspiration I tend to buy electronics kit and then end up leaving it unused for ages. I’ve had a Pimoroni Mote kit and a Raspberry Pi Zero W sitting around for some time now, and whilst I originally intended to mount the LEDs in my PC case, I eventually decided to add some much need lighting to my Ikea Kallax bookshelf. Rather than settle for a static display I decided to completely over-engineer this project and make them controllable over the LAN.
Here’s a plugin I’ve been working on this weekend that integrates Google Music with the Google AIY Voice Kit. Simply speaking, “play playlist” will stream the playlist from your Google Music account and display the current track artist & title on the display.
Another Unicorn HAT project that I’ve been fiddling around with for a while. I was looking for a way to introduce kids to the idea of Fast Fourier Transforms (FFTs) and signal processing so with my love of blinking lights I thought I’d create an audio visualiser just like the one you tend to find in media-players.
This post is a sort of eulogy. About 5 years ago I decided to teach myself a little more about electronics and thought building an LED matrix from scratch would be a good idea. Not just any old LED matrix, a 16×8 LED matrix. That’s 128 individual LEDs along with a whole bunch of resistors, transistors and a couple of shift registers for good measure.
Whilst the Unicorn HAT is a lovely, colourful, 8×8 matrix, the individual NeoPixels are naturally round and quite bright. Needing to get to grips with our Maker Space’s 3D printer I decided a good first project would be a diffuser that would turn those circular LEDs into square ‘pixels’.