Years ago, around the time DorkbotPDX's meetup moved from Vendetta to NW Lucky Lab, Ben Bleything brought LCDs from decommissioned point-of-sale terminals to the meetup. I did some reverse engineering to get them working!
At the time, I wrote 3 blog articles aboug the reverse engineering effort. Only one of them survived from the early days of this website. Recently, I found the original text those old 3 articles, and also a small pile of the LCDs... which I'll be giving away at upcoming meetings!
Click "Read more" for those 3 original articles with the fine details of reverse engineering (and source code) for these old LCDs....
I've recently posted the following instructables:
1) Modifying the output Voltage of an Adjustable AC-to-DC Converter
2) Hall Throttle Control of an RC Motor ECS
3) Telephone Ringer Visual Alert (LED)
I'd been meaning to do this for a while, and when I got a bag of colorful little breadboards, it was TIME.
Here's a clean version of the ByteBeats circuit we built last Sunday. I used a Teensy-3.1 instead of a Teensy-2.0, but everything else is more-or-less the same. (I added some capacitors on the power lines, a volume control and a speaker instead of the headphones, but it's all minor changes that anybody at a Dorbot meeting could help you with. Or email me, I'll go through it with you.)
The ByteBeats workshop went pretty well: everybody left with a working circuit, although there were some hiccups along the way.
I hope you all enjoyed the project. Keep in mind: the same circuit can be used for a bunch of different audio hackery by changing the software. For example, I wrote a program to produce sine waves at regular musical-scale intervals. It's a short step from there to playing MIDI, I imagine.
Click "Read more" for more photos...
...with a popcorn popper and a microcontroller! More to come...
A free workshop at Flux
DorkbotPDX is happy to offer a 4-hour intro to Processing -- a graphics programming environment. Students will learn the basics of Processing.
No prior programming experience required!
Source code: Processing_Fundamentals
Hey everyone! I'm the lead organizer for the Portland Indie Game Squad. Our funding project recently surpassed most of its goals – which are all resources being made available to the community – and I'm coming up with some higher-tier options. A 3d printer is definitely on my list for the board game/miniature game developers in the group, and I've been asking around for what people might recommend as a "beginner" setup, somewhere between $400 and $600.