Ok awesome, thanks Runger, I do recall now that’s a common issue, but all the same no one else thought of it either. I don’t know why that always happens, everyone seems to thing someone else will add the resistors, lol. Classic. Definitely add that to the list of board modifications. The simplefoc shield must have had the resistors, and we should stick with that standard imo.
I will continue experimenting tomorrow. First, I need to ascertain if I can fit my code on the lepton, I don’t need much, just torque control with pwm direction and torque level in, and FG out (one pulse per rotation or whatever as an output so I can monitor fan rpm). Then I see what rpm I can get, and what it sounds like, and try to optimize if needed. I see how far I get, then decide if I should switch to a better processor or whatever. Also I will try to ascertain how long I can make the wires, I can put the lepton (or it’s successor) inside the fan, but for waterproofing I would prefer to put it farther away.
I got some good motors coming so I probably won’t need anti cogging, but it would be valuable in the future as low cogging motors are really hard to get. So I think a better MCU is definitely in the cards. Also I would like to use something that others are also using, and that means a better mcu is important.