there is no need for the center tap, but in sensorless control it can come in handy (I hope to post an instructable about sensorless control one of these days). If your motor has four contacts
You can connect small servo motors directly to an Arduino to control the shaft position very precisely.
and possibly also values ofMAX_FEEDRATE_EDIT_VALUES,MAX_ACCEL_EDIT_VALUES,MAX_JERK_EDIT_VALUES,MANUAL_FEEDRATE,SENSORLESS_BACKOFF_MM,HOMING_BACKOFF_POST_MM,BACKLASH_DISTANCE_MM.NOZZLE_TO_PROBE_OFFSETShas to be extended with elemets of value 0 until the number of elements is equal to the val...
Novel high efficient offline sensorless dual-axis solar tracker for using in photovoltaic systems and solar concentrators. Renew. Energy 2016, 95, 485–494. [Google Scholar] [CrossRef] Mi, Z.; Chen, J.; Chen, N.; Bai, Y.; Liu, H. Open-loop solar tracking strategy for high ...
Novel high efficient offline sensorless dual-axis solar tracker for using in photovoltaic systems and solar concentrators. Renew. Energy 2016, 95, 485–494. [Google Scholar] [CrossRef] Mi, Z.; Chen, J.; Chen, N.; Bai, Y.; Liu, H. Open-loop solar tracking strategy for high ...