I know that when you add any type of extra board on to Bittle you can not longer attach the back cover. would it be possible to make kind of a square collar that would fill in the extra space that is created when a Pi or I BiBoard is added. It would clip into the body just as the back would and then the back would clip into the collar spacer. I personally like having the back attached in case he flips over I know that board would not be damaged.
The family of the new Nyboards, there's a special version to make the board inside the Bittle's body and the Pi should be mounted on the top.
But there's a problem, the Pi's USB and HDMI interface may short circuit. And it's also too high for the space between Pi and Nyboard.
Maybe we can do something of a Pi-4 compute module...
Pi-4 and Pi-Pico, sandwich Pis!
I'm curious about it!