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Snake eyes only on one screen (not two!)
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Please be positive and constructive with your questions and comments.

Snake eyes only on one screen (not two!)

by nanikore on Mon Sep 23, 2019 7:12 am

Hi.
I got my Snake Eyes kit delivered recently, the bonnet, cables and 2x 240*240pixel IPS TFT screens, hooked up to my Raspberry Pi 3, 16GB SD. I was following this guide:
https://learn.adafruit.com/animated-sna ... i/overview

After initial build and install it boots, and on my HDMI connected screen I see the two creepy eyes (success)! However, I only see an eye on the left LCD screen (also see boot text on this screen only during boot, but I suspected that was working as designed).

The backlights come on for both, so the right hand screen is getting something. I swapped the LCDs over, and could get an image on the other screen, so I know the LCDs are OK. I checked the cabling, and it looks OK. This led me to think the issue was one of my solders, so my next task is to get my multimeter on those.

Can anyone recommend any tests, diagnostics or logs I can be checking to try to fix this?
(Hoping to deploy this as part of a Halloween animatronic in front of the house.)

nanikore
 
Posts: 17
Joined: Wed Mar 27, 2019 2:10 am

Re: Snake eyes only on one screen (not two!)

by nanikore on Wed Sep 25, 2019 10:02 am

Checked all the connections on my multimeter... no joy. Seems there's something wrong with the bonnet?

Adafruit, what's next? Running out of time for a cool Halloween animatronic :(

nanikore
 
Posts: 17
Joined: Wed Mar 27, 2019 2:10 am

Re: Snake eyes only on one screen (not two!)

by nanikore on Wed Sep 25, 2019 8:21 pm

Is in the right sub-forum then if the screens seemingly work work? Is 'Other Products from Adafruit' the correct sub-forum? Should I re-post there or can this be moved?

nanikore
 
Posts: 17
Joined: Wed Mar 27, 2019 2:10 am

Re: Snake eyes only on one screen (not two!)

by nanikore on Fri Sep 27, 2019 9:19 pm

I tried making some changes on the tutorial page, such as variations:

Code: Select all | TOGGLE FULL SIZE
sudo ./fbx2 -i -b 10000000


but that doesnt appear to work either.

nanikore
 
Posts: 17
Joined: Wed Mar 27, 2019 2:10 am

Please be positive and constructive with your questions and comments.