ONstep STM32 handpad controller (semi-smart)
Boards arrived today from PCBway (10 pcs cost me only US$5... and nothing for postage because I had another design from them so I combined delivery cost).
This is my solution, hand pad has only processor, serial, BT, ST4 (plus buttons), RTC and buffers (interface to stepper drivers, which are in the mount).
Last edited by bojan; 25-05-2020 at 01:45 PM.
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