Any of the Udoo boards, most specifically the x86 Advanced Plus II. Plenty of GPIOs from the Braswell core, and another chunk from an integrated Arduino. Its a

Any of the Udoo boards, most specifically the x86 Advanced Plus II. Plenty of GPIOs from the Braswell core, and another chunk from an integrated Arduino. Its a bit more than 2x the price, but the flexibility and standard boot and peripherals it offers is worth the cost for hobbiest hacks.