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**pjmoreland** · 10-10-2021, 01:30 PM

I received the speed sensor I ordered from Dakota Digital and hooked it up to the Arduino. The signal from the speed sensor is sinking (ground), so it took me a little while to figure out I needed to activate the INPUT_PULLUP setting on the digital input that is reading the speed sensor signal. Spinning the speed sensor at about four revolutions per second should be the same as 15 mph, and that's what I'm reading. The next step is to wire this up to my truck in a temporary way so I can start reading the 4th gear switch and activate the TCC solenoid.

10-10-2021, 01:30 PM	#48
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,331	Re: 700R4 TCC Wiring I received the speed sensor I ordered from Dakota Digital and hooked it up to the Arduino. The signal from the speed sensor is sinking (ground), so it took me a little while to figure out I needed to activate the INPUT_PULLUP setting on the digital input that is reading the speed sensor signal. Spinning the speed sensor at about four revolutions per second should be the same as 15 mph, and that's what I'm reading. The next step is to wire this up to my truck in a temporary way so I can start reading the 4th gear switch and activate the TCC solenoid. Attached Images Last edited by pjmoreland; 10-10-2021 at 04:53 PM.