People replied a lot while I was sleeping. I''m not going to give the same response to everyone who was asking what its for, so I'll just say it here. I want to use an arduino to spoof the 0-5V analog throttle signal on this ebike i'm building.
@MLE_online for throttle? yeah homie you could throw just about any RC combination at a slow-moving signal like that. If it's too laggy, lower the RC constant.