Led matrix missing rows

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

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mikeysklar
 
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Re: Led matrix missing rows

Post by mikeysklar »

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.

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ldzhamov
 
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Re: Led matrix missing rows

Post by ldzhamov »

No change. Same issue after reset.

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mikeysklar
 
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Re: Led matrix missing rows

Post by mikeysklar »

I ordered the same hardware over the weekend. I’ll let you know if I have any issues recreating this.

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ldzhamov
 
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Re: Led matrix missing rows

Post by ldzhamov »

I replaced the matrix hat with a new one. My setup works now. Thanks for your help.

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epistemolojazz
 
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Re: Led matrix missing rows

Post by epistemolojazz »

Having a similar issue... are these RGB Matrix bonnets known to be sensitive or prone to go bad?

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mikeysklar
 
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Re: Led matrix missing rows

Post by mikeysklar »

@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.

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epistemolojazz
 
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Re: Led matrix missing rows

Post by epistemolojazz »

will do!

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