Hello all, I am currently working on a high altitude balloon capsule, and I have been looking around to see how I could get a BMP-280 sensor to trigger a servo to release a parachute via the Arduino platform, but my search has been fruitless, Could anybody here help?
Seems simple.
Read altitude, is Altitude X, if no don't open chute, if yes open chute, stop reading altitude.
Post the code you have now and let us know where you are having issues and we'd try to lend to.
What if the servo has even the smallest amount of water vapour in it, the servo could freeze up.
For general tips on how to release a parachute for a high altitude balloon do a Google search on;
'High altitude balloon cut down'
Its probably not normal to have a paracute itself released in a high altitude balloon, it deploys automatically when the tension in the suspend cord is removed, either by the balloon bursting or being otherwise released (i.e. cut down).
(I am sat here writing an article on high altitude balloon trackers as it happens)
srnet:
What if the servo has even the smallest amount of water vapour in it, the servo could freeze up.For general tips on how to release a parachute for a high altitude balloon do a Google search on;
'High altitude balloon cut down'
Its probably not normal to have a paracute itself released in a high altitude balloon, it deploys automatically when the tension in the suspend cord is removed, either by the balloon bursting or being otherwise released (i.e. cut down).
(I am sat here writing an article on high altitude balloon trackers as it happens)
I am aware that this is somewhat unorthodox, however I live on an island, so if I can reduce the time under canopy for the descent, I should hopefully cut down on drift due to wind, to stop it going in the ocean
Are you saying that you want the payload to free fall to a low altitude before opening the chute?
JCA34F:
Are you saying that you want the payload to free fall to a low altitude before opening the chute?
yes.I'm trying to reduce wind induced drift on descent
By all means use a servo based cut-away but you do need to carefully consider the safety implications of dropping weights onto people from altitude.
Used as the only cut-away a single Arduino sounds not good to, a second Arduino with an independant cut-away such as a hot wire type, would I suggest be almost mandatory in the circumstance.