Nice, I also have the??Wemos R32 with a CNC v3 shield for an OnStep using the original hurst stepper motor. I just have a GM8 RA base so it serves as a heavy duty star tracker and solar scope mount. The whole OnStep was also a 5 minute mod :)?
The OnStep part can be a few minutes but what took me a lot of time is debugging my CNC v3 board (I had two, not all pins were working as advertised) and making cables for SPI, etcetera.? Plus, one of my two Wemoses was broken as well (but not badly enough to make it obvious).? Debugging all that took a lot of time.? But it's OK, I enjoyed learning everything.
Last night I took the system under the stars and found that it was not tracking well (unrelated to the mod of this thread, I ran it with and without).? So I have more debugging to do.? The battery was at 11.5 V so maybe that was it, otherwise I may need to increase the Vref of the stepper drivers, check the connections, etcetera.? I will figure it out but it always takes more time.
