Rocket parachute deployment test HELP MEE

[TheMarsocx]

Hi,
I want to move DC motor with bme-280 sensor, how can I move it?
How can I move the DC motor at 400 meters
Help me pls.

 

[dhbarr]

- standard temp & pressure are known
- on powerup record the local initial deltas
- poll the bme 280 in a loop
- when your estimate hits 400m, exit the loop and signal the motor

This is pretty quick and dirty, and if you're wrong about apogee may result in damage or complete destruction of the airframe.