I purchased two 32 x 64 LED matrices, an RPi-2 and Pi Hat to drive them, as well as the recommended 10A power source. I soldered and assembled the kit with the assistance of a friend who has a degree in electrical engineering, so I am pretty sure the assembly is correct (he evaluated the soldering, etc.). Now, when I run the test programs, I get a pattern like the one indicated in the attached photo, no matter which matrix is plugged in.
Could this be a power supply issue (e.g. insufficient amps, despite what it is rated for)?
RGB Matrix 32x64 problem
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- lefsky
- Posts: 4
- Joined: Thu May 29, 2014 10:43 pm
RGB Matrix 32x64 problem
- Attachments
-
- rgbmatrix.png (658.29 KiB) Viewed 175 times
- pburgess
- Posts: 4161
- Joined: Sun Oct 26, 2008 2:29 am
Re: RGB Matrix 32x64 problem
I don't think it's a hardware problem...looks like an incorrect 'chain length' in the code. The 64x32 matrix is essentially two 32x32 matrices chained together; chain length should be 2 for a single 64x32 -- or 4 if you're using both 64x32 matrices together. Add '-c 2' to the command line when running the demo program.
Please be positive and constructive with your questions and comments.