ricadam:
I don't understand, I do have a common ground, don't I? The right hand side of my diagram?
oh - ok... i wasnt sure...
so there is a low resistance connection between arduino's ground and that removable object's ground?
ricadam:
I don't understand, I do have a common ground, don't I? The right hand side of my diagram?
oh - ok... i wasnt sure...
so there is a low resistance connection between arduino's ground and that removable object's ground?