Is it just me, or do you end up installing raspbian over and over again on a complex project?

I don't even think this project is all that complex. A raspberry pi 3b+ with a Waveshare WM8960 sound card, a generic 16 channel servo card, running google assistant with hotword recognition, running servos to move a puppet (and have the mouth move more or less in time with the speech).

I keep running into audio issues, where installing one thing or another ends up messing up the asound or pulseaudio config and then I lose output to the speakers. I got that card to simplify things as it has a tiny onboard amp and speakers, as well as built in microphone. But i'm now up to having reinstalled raspbian at least 8 or 10 times trying to get all the components to work together. I know I could scrap that card for this, add a usb microphone, and powered speakers but I don't have a usb mic handy, and I wanted this to all fit inside a moose head puppet. If I need another power supply on top of the pi + servo board (to drive the speakers) it seems like its gone a little too far

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aspork42 over 5 years ago

I Had kind of a similar nightmare with that during the Pi Chef Challenge. I was integrating the 4D Systems touchscreen and kept bricking the Pi and I had to reinstall. I lost a week or two on it. I finally set it down and came back to it later. Eventually I realized that because the screen had a custom kernel, that every time I tried to run updates it would plow over the custom stuff and basically brick it. So I ended up with an image which is locked in time and can’t be updated, but everything worked once I figured that out. I found later that it is mentioned kinda sorta in passing to not run updates, but I read right over it. Wish it was stated clearer.... So double check all the documentation.

https://www.element14.com/community/community/design-challenges/pichef/blog/2018/02/13/pi-chef-challenge-smart-range-hood-initial-pi-power-up-config
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aspork42 over 5 years ago

I Had kind of a similar nightmare with that during the Pi Chef Challenge. I was integrating the 4D Systems touchscreen and kept bricking the Pi and I had to reinstall. I lost a week or two on it. I finally set it down and came back to it later. Eventually I realized that because the screen had a custom kernel, that every time I tried to run updates it would plow over the custom stuff and basically brick it. So I ended up with an image which is locked in time and can’t be updated, but everything worked once I figured that out. I found later that it is mentioned kinda sorta in passing to not run updates, but I read right over it. Wish it was stated clearer.... So double check all the documentation.

https://www.element14.com/community/community/design-challenges/pichef/blog/2018/02/13/pi-chef-challenge-smart-range-hood-initial-pi-power-up-config
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