1 - is a serial connection from the arduino to the attachment sufficient?
2 - should the arduino be able to be reprogrammed from the attachment? why or why not?
3 - what kind of bandwidth needs to be made available? is a hard-wired GPIO/SPI or other bus connection to it helpful or a hindrance?
Availability of these small SBC's are unknown. You can't even buy the BCM2835 to build your own raspberry pi zero because broadcom will not sell to anyone except raspberry pi trading.Most small SBC's also have very little software support. You almost have to stick with raspberry pi zero. Then all you need to do is just connecting the zero with arduino. There is no need to design any board to do the job of a USB cable.
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16