A board to connect a single host to multiple dev/eval boards, each with:

• Power over USB
• USB (shared with above?) for Fastboot communication
• Serial (RS-232)

Only one board can be active at a time. The current board can be selected using a [switch/microcontroller]? and is displayed on a [screen/LEDs]?.

Currently, the chip select output is handled by a 3 bit address (3 slide-switches) and submitted using a single toggle switch.

The idea is that this board gives a clean interface between my host PC and full rack of microcontrollers/SoMs without fiddling with wires.