I have recently got into snowboarding and it came to me to make a sort of Hud that would include information that would be cool to have (temp, time,g's, and speed). is it possible to have some kind of sensor/sensors mounted to my helmet that could track the speed i was going. im doubtful that there is an easy solution to this but i was just curious what could be out there. free netflix netflix free trial upcoming movies
Speed is usually measured as the difference between two distance readings in relation to time. If you are 20 feet away and one second later you are 19 feet away, your Speed is 1 foot per second. Hard to do from a helmet which isn't pointing at anything. I suppose you could try a GPS device that reads two positions and does the same type of calculation (like the Navigation System of a car). I don't see how you could do it with an acceleration sensor.
GPS is probably the best solution for this. Then you can even have it log your trajectory.
An Arduino can measure elaspe time but you might want to add a Real Time Clock to know the absolute date and time.
GPS would be good to record your route.
An accelerometer will let you measure g forces and you you should be able to calculate distance moved (which hopefully ties up with your GPS).
For temperature you would need to add another sensor.
An SD card would let you record the information about your routes.
You are going to want a few buttons as well to start and stop recording.
You might even add a camera.
My advice though is not to try and do all this at once.
Start really simple, just reading the buttons.
Add the RTC and print the date time only when the buttons say you should be recording.
Write the information to an SD card.
Add in the accelerometer.
All the time put plenty of print statements in your code.
seedhe:
I have recently got into snowboarding and it came to me to make a sort of Hud that would include information that would be cool to have (temp, time,g's, and speed). is it possible to have some kind of sensor/sensors mounted to my helmet that could track the speed i was going. im doubtful that there is an easy solution to this but i was just curious what could be out there.
Actually, you can use an anemometer on your helmet to get the speed if the wind is not blowing much.
Paul
My hand held GPS will give a speed readout directly.
Paul_KD7HB:
Actually, you can use an anemometer on your helmet to get the speed if the wind is not blowing much.Paul
It tends to be windy up snowy mountains and besides having an anemometer stuck to your helmet would clash with all the cool snowboarding gear.
ardly:
It tends to be windy up snowy mountains and besides having an anemometer stuck to your helmet would clash with all the cool snowboarding gear.
And would block the GoPro's field of view. 8)