Pi power! The project is coming along nicely. It’s got a Raspberry Pi for communication with the outside world, and a custom-made Arduino board for controlling the steering servo and L298-based DC motor driver. I’ve hacked a standard RC receiver to obtain the PPM signal which is decoded using the Input Capture function on pin 14 of the ATMega328.
Do you “lose root” if you install an over-the-air update on a stock Android phone? No! All that happens is that the permissions on the “su” binary get changed so it is no longer executable. Those l33t haxors will have you thinking you need to do something terribly complicated in order to “get root” but it’s really quite simple.