Jump height gauge

Hey guys im trying to create a jump height gauge which is virtually a sesor in the verticle position and when the hand travels past the sensor it will log its highest point so i can create a readout on an lcd display. It will need to measure jumps roughly 3-5ft or a large range similar.

Any ideas on what sensor to use and or where to get a similar script

Tough one. An ultrasonic or optical distance sensor can do it but it might require a reflector held in the hand and you have to jump towards the sensor. If your hand slips out of the beam at the top of the jump, you will get a very poor score.

See the sensors section at Sparkfun and Adafruit.

Why don't you try to use a barometer with high resolution. You might want to attach it to a glove and wear it on your hand.

Measure the altitude on the floor you are trying to use it on, as an initial reading...then jump with your hand stretched up and record the highest altitude that the sensor read... Subtract the initial altitude from the highest altitude achieved and you MIGHT get the jump height.

This is just a suggestion and might not be the best solution to your problem. Anyways considering a barometer is a cheap module its worth a try....

You may find a fairly accurate correlation between the departure and return times (impulses).

I reckon it's worth exploring. With the assumption that your pressure mat is a clearly defined area, the flight time can only occur in one general direction (up-down), and gravity/environment won't change much. You may need to factor in the mass of the jumper.

leo999: Why don't you try to use a barometer with high resolution. You might want to attach it to a glove and wear it on your hand.......Anyways considering a barometer is a cheap module its worth a try....

Typical resolutions for cheap barometer modules like the BMP180-based one from Sparkfun are (claimed to be) about 0.25m, (10 inches), so probably not accurate enough for this purpose.

Actually, Sparkfun say 0.25m, but the Bosch tecnical data for the BMP180 says "25 ... 40 °C/ ±1.0 m"

Hi, Just get the jumper to push up a bracket that slides up a rail on the wall.

It will stop at the apex of the jump, then think about a device to measure the height of the bracket.

Just a thought... Tom.. :)

although it would not be usable, a motion detector can be perched on a ledge so anything above it could be seen. then use so many of these as needed to get feedback. no detection, the fingers did not get to that point.

also a video feedback or vision technology might be much easier. out of the realm of the Arduino, but not out of the hobby pricing.