Status: finished
Availability: design-files/code
Some blog posts about it: by myself, external
- Demo code – bye bye PWM, hello BCM: only 12% cpu load!
- All design files for grabs. Made with KiCad
- v3_documentation.pdf
- More brightness hack: 1,2
For flashing the bootloader I recommend the very affordable USBtinyISP by adafruit. Just program and upload as usual with the Arduino IDE and a USB/TTL converter like this or that. If you have trouble to upload code with the Arduino IDE, maybe auto-reset doesn’t work. There’s a Perl script that enables auto-reset with FTDI USB/serial adapter cables. There’s also the option to upload code by manually resetting the board as described here.
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you have any left?
this is great work!!!
A few are left.
What are those female headers called? I’ve been trying to figure this out for a while.
Called? I could give you the German name for them, but that wouldn’t help I guess. For me they’re just ‘female headers’ when I use the English language ;-) There are the cheap ones (square pins) and the ‘precision’ / ‘machined’ types (round pins). The 10pin female headers used on the board are the cheap ones, the 8pin headers are the ‘better’ ones.
http://www.ladyada.net/wiki/partselector/header
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Are these modular. Can you put them together for large displays?
Sort of. You can mount them next to each other, but there will be a gap of 2-3 mm between the modules. It might get better after milling/grinding off some unused space at the edges of the PCB. A dirty job.
I really never designed it with building a bigger display (scrolling text etc.) in mind, because it would have been quite costly with many modules in a row. But you can always get a Rainbowduino, which should work that way. And of course I can’t compete with a real business selling these things.
Or you could download my design files and fix it for your needs ;-)
Dear sir,
i m student in self-study and online college in Malaysia
I m interested in 8 x 8 RGB led display Kit
can i know how much is cost to purchase it
1. Full kIt
2. the Pcb and led matrix
3. pcb only
tq
regard
wong
Hi,
have a look at my shop please ;-)
I offer a full DIY kit including the LED matrix, and just the bare PCB.
If you have access to a PCB manufacturing service that is cheaper for you, just download the gerber files and have the boards made locally. There is demo code as well.
Everything is open source ;-)
Looks like rainbowduino stole your design :)
Maybe they were ‘inspired’ by it.
But it’s a better product as far as brightness is concerned. It’s got LED drivers and all. Of course if you want to improve soldering skills, mine is better. Self assembled ;-)