Led matrix missing rows
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- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Led matrix missing rows
I reviewed other forum posts with the 2 rows on, 2 rows off issues. There are several that were resolved with reseating the hat and reseating it. If you could power down the Pi, remove power from both devices and reseat the HAT let’s see if that changes anything.
- ldzhamov
- Posts: 10
- Joined: Sun Dec 11, 2022 9:05 pm
Re: Led matrix missing rows
No change. Same issue after reset.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Led matrix missing rows
I ordered the same hardware over the weekend. I’ll let you know if I have any issues recreating this.
- ldzhamov
- Posts: 10
- Joined: Sun Dec 11, 2022 9:05 pm
Re: Led matrix missing rows
I replaced the matrix hat with a new one. My setup works now. Thanks for your help.
- epistemolojazz
- Posts: 8
- Joined: Sun Apr 09, 2023 10:56 am
Re: Led matrix missing rows
Having a similar issue... are these RGB Matrix bonnets known to be sensitive or prone to go bad?
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Led matrix missing rows
@epistemolojazz,
The Matrix HATs have up to 42 solder points so that is 42 places things can go sideways. The other common issue is the flags being passed to the demo program with different models of Raspberry Pi.
I find the Bonnets to be less problematic as they come fully assembled.
Please post your setup Pi, power supply etc. in a new topic so we can assist you with it.
The Matrix HATs have up to 42 solder points so that is 42 places things can go sideways. The other common issue is the flags being passed to the demo program with different models of Raspberry Pi.
I find the Bonnets to be less problematic as they come fully assembled.
Please post your setup Pi, power supply etc. in a new topic so we can assist you with it.
Please be positive and constructive with your questions and comments.