The $17 Luckfox Lyra Zero W is a Raspberry Pi Zero-sized single-board PC, but it has a RK3506B processor with three 1.2 GHz ARM Cortex-A7 CPU cores and a Cortex-M0 coprocessor for real-time tasks. https://linuxgizmos.com/lyra-zero-w-packs-rk3506b-and-wi-fi-6-into-raspberry-pi-zero-sized-board/ #SBC #Luckfox #LyraZeroW #RK3506B