federico_93:
hi, i must drive a step motor but i don't know how to connect an external power source to the arduino motor shield r3.
what must i do to tell it to use an external power source? or what must i do?
just to make things even more clear. hope this helps.
p.s. @federico_93 la punteggiatura non ha mai ucciso nessuno, quindi usala. altrimenti si fatica a capire pure in italiano.