Defective item

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Willfredo
 
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Joined: Tue Jun 01, 2021 7:56 pm

Defective item

Post by Willfredo »

Adafruit CYBERDECK HAT for Raspberry Pi 400

PRODUCT ID: 4863


I was trying to use this with the suggested hyperpixel4. The screen kept losing the image and just had the backlit light. I thought the issue was the lcd screen, but after removing the cyberdeck from the equation, my lcd screen works fine.

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adafruit_support_mike
 
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Re: Defective item

Post by adafruit_support_mike »

We've just found that the Cyberdeck Hat has a diode that seems to cause a conflict with the HyperPixel's CS pin. It seeems to be an edge case.

You can fix it by cutting this trace on the Cyberdeck between the component and the via:
adafruit_products_CDH_fab_print.png
adafruit_products_CDH_fab_print.png (241.58 KiB) Viewed 217 times
You can't use that pin while the two devices are connected to the RasPi anyway.

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adafruit_support_carter
 
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Joined: Tue Nov 29, 2016 2:45 pm

Re: Defective item

Post by adafruit_support_carter »

Please see here for information about this issue along with suggestions for fixing it:
viewtopic.php?f=50&t=179733&start=15#p875641

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