Yep, thanks for the help guys just needed to talk through it with somebody I guess. I added in a potentiometer to adjust for that height difference between standing flat footed and going up on your toes.
I thought about it being posture related also, but when going through the video it doesn't look like that. I'd upload it but it just a recording of my legs and a light on the arduino for comparison of where the algorithms at. On the jump I start with legs bent and jump up--legs extending and...
Ok, so I'm using an arduino with an led matrix and a homemade pressure sensor to figure out the height of a vertical jump and then display the info back. First I get the amount of time between when the person left the board and when they land back on it. I then divide the time in half and use...