Hello, I have watched some videos and photos. It looks like most of the time people use relays or motor controller to control linear actuators. This is probably due to the fact that Arduino boards cannot supply enough current to the motors. However, I have also seen people connecting linear actuators directly to the Arduino. Under what situation can we do that?
I want 2-4 linear actuators to be able to move to some pre-programmed positions according to user inputs. I also want to record the position of the linear actuators over time. Could you please recommend motor controller/shield? Thanks