Quote:
Originally Posted by ptsmith24
Got mine assembled. I plan on getting the leads to the car hooked up tomorrow. I fired it up with USB power and all seems well. At one point, the numbers were changing without me doing anything (slowly increasing MPH, and other numbers changing accordingly...demo maybe?). However, all the numbers sit at zero right now upon powerup. It isn't pretty, but it should get the job done. Maybe I can build another one now that I kinda know what I'm doing.
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Quite possibly the fact that you do not have anything hooked up is causing the inputs to float. Try grounding the inputs, that should fix the false indication. (I did not see any demo mode in the code.) If the problem continues, double check the connections you have made.