HUB75 RGB Matrix 64x64 Flickering Pixels

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

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
dyonak
 
Posts: 2
Joined: Wed Apr 04, 2012 12:35 pm

HUB75 RGB Matrix 64x64 Flickering Pixels

Post by dyonak »

I've got an RPI4 8GB with the Adafruit RGB Matrix Bonnet hooked up to a new 3mm pitch 64x64 panel and I'm seeing some "random" flickering pixels on my panel. Using the same setup and software but switching to my previously purchased curb-cut 2.5mm pitch 64x64 panel it works perfectly.

I'm looking to get this new panel replaced (order 3029327-8699415903).

User avatar
pburgess
 
Posts: 4161
Joined: Sun Oct 26, 2008 2:29 am

Re: HUB75 RGB Matrix 64x64 Flickering Pixels

Post by pburgess »

What --led-slowdown-gpio setting are you using? I think this can go up to 5 if necessary. Different panels just have different timing requirements; swapping the panel is unlikely to resolve this.

User avatar
dyonak
 
Posts: 2
Joined: Wed Apr 04, 2012 12:35 pm

Re: HUB75 RGB Matrix 64x64 Flickering Pixels

Post by dyonak »

I had been using 4 for the slowdown and thought that was max, adjusted to 5 and it's buttery smooth. Thanks pburgess!

Locked
Please be positive and constructive with your questions and comments.

Return to “Glowy things (LCD, LED, TFT, EL) purchased at Adafruit”