We have been trying a few things - on a scope we get a 50% wave signal (img as example):
View attachment 111403
But trying to get a signal through arduino - using a digitalRead (on a digital pin) gives either 1 or 0, but values change, also when the motor is not powered..
Reading the wire on an analog pin, via analogRead gives values, which do differ when turned on or off, but not in a way you might expect (like the blockwave signal).
Don't have a scope I'm afraid - went to a tech school to use it there.
I can halt the rotation by disconnection the green wire, or by connecting the white wire. So I guess not..
We can use an external switch to determine the 'home position'. I do need to be able to rotate both ways, in the same direction, and in the reverse direction.