I got my Snake Eyes kit delivered recently: the bonnet and connectors, rainbow ribbon cables and 2x 240*240pixel IPS TFT screens. I was hoping to use this as part of a Halloween animatronic in front of the house this year.
I soldered the bonnet connectors up, and cabled this all up to my Raspberry Pi 3 running on a 16GB class 10+ microSD card.
I was following this guide:
https://learn.adafruit.com/animated-sna ... stallation
After initial build and install, it boots, and on the connected HDMI screen I see the two creepy eyes looking around!
However, on the two small screens, I only see an eye on the left LCD screen - the screen I also see boot text on during boot.
The backlight comes on for both the small screens, so the right hand screen is getting something. I swapped the LCD screens over on the bonnet connectors, and could get an image on the other screen hardware now as the left screen, but still nothing on the 'right' screen, so I know the LCDs themselves are OK.
This led me to think the issue was one of my solders, so next I checked all the connections with my multimeter and they all passed.
I tried making some changes on the tutorial page, such as bitrate variations:
Code: Select all
sudo ./fbx2 -i -b 10000000
I looked at the Pi Eyes code page on github and saw a somewhat similar issue:
and have posted there, as there is a suggestion to hook both LCD up to the single SPI and use channel select.
I also tried the setup on my Pi2, with the same results.
All in all, a bit mystified as to why this doesn't work on my set up.
Could this mean there's something wrong with the bonnet?
Can anyone recommend any tests, diagnostics or logs I can be checking to try to fix this?
Any critical information I'm missing?
(This is a summary of posts from the Glowy Things subforum, as I couldnt get any response there after nearly a week.)