Using an "Adafruit RGB Matrix Bonnet", limitations

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guusje4525
 
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Joined: Wed Sep 19, 2018 4:10 am

Using an "Adafruit RGB Matrix Bonnet", limitations

Post by guusje4525 »

Hello,

For work, i'm trying to create a large panel filled with led screens(128x64 pixels). For this panel(pretty large) I am going to need about 20 led screens. As a test, I bought 1 led screen(128x64) paired with a "HD-C30 led controller". It works, but the problem is that I cant dynamically change content by api(as far as I know). This is a requirement as I want to change content on the screen that I enter in a custom made site / application.

So, looking for a solution I found "Adafruit RGB Matrix Bonnet for Raspberry Pi" which should work(same hub75 connector). However, it doesn't specify the amount of led panels it can handle. Does anyone have experience in this? Will this work? I am not an expert in this so I don't know if there is a better way of solving this issue.

Led panel: https://www.aliexpress.com/item/2018-Ho ... 22153.html
HD-C30 controller: https://www.aliexpress.com/store/produc ... 74005.html
Adafruit RGB Matrix Bonnet: https://learn.adafruit.com/adafruit-rgb ... spberry-pi

Thanks,
Guus

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adafruit_support_carter
 
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Re: Using an "Adafruit RGB Matrix Bonnet", limitations

Post by adafruit_support_carter »

There's a short blurb in the product Learn Guide:
Want more lights? No problem, chain multiple matrices together for a longer display - we've only tested up to 32x128 but it works just fine. The bigger the display the harder it is on the Pi, so keep that in mind if you're using a lower-powered Pi Zero.
This is mainly pointing out the need to consider the processing power required to handle all the pixel information resulting from the large display. Additionally, you'll want to consider the power requirements. There's some info on that in this guide:
https://learn.adafruit.com/32x16-32x32- ... x/powering

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