Lost in some office, surrounded by clueless clerks, and low on patience…
This is my adaption of the famous tag line of Army of Darkness: “Lost in time, surrounded by evil, and low on gas…”, which describes what I’ve been through the last 3 weeks. But finally I got the PCBs !
Here are the photos:
Image may be NSFW.Clik here to view.
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Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
A slightly updated version will be available soon with all the necessary files to reproduce it (KICAD + gerber). There was a bug in the dimensional drawings of the LED matrix, so the footprint I created for it was slightly wrong too. It works, but it’s not 100% straight. So this will be fixed.
I’ll also add a jumper to disable the RTS/DTR line on the FTDI cable and a 10k pull-up resistor to disable the matrix while uploading code. This is not strictly necessary if the resistors are high enough, but it is the proper way. In a related project I drive the LEDs with high peak currents and without the PWM running, they will fry. In this case disabling the LEDs is vital.
Gerber files for this revision 3.00: 8x8_rgb_matrix-v3_fixed.zipGerber + KICAD files for an updated revision 3.03: 8x8_rgb_matrix-v3_03_publish.tgzV3.03 schematics taken from the .tgz file- Gerber + KICAD files for an updated revision 3.04: 8x8_rgb_matrix-v3_04_publish.tgz
- V3.04 schematics taken from the .tgz file.
For your convenience I’ve included all the non-standard libraries/footprints I’ve used in V3.03. You still have to configure KICAD accordingly (EEschema/CVpcb). See comment #4. Also see the library page if you want to download them individually.
//www.youtube.com/watch?v=uVO2Lzd_D7c
I had this board manufactured by Seeedstudio, and put a short page into their open source PCB wiki. They also have access to the gerber files and maybe would produce more if there was a big enough demand for it.
Please also have a look at my projects page for the latest demo code.
Comprehensive writeup at instructables.com
