Hi Everyone,

To provide a bit of background, I'm attempting to assist Mike Passaretti
with getting an electronics apogee deployment configuration nailed down for
his planned flight at Balls this year. His initial plan was to use two
Raven 3s to provide all the required deployment events in his flight.
Unfortunately his Raven 3s aren't high alt firmware models and it seems
there isn't even a high alt firmware available for the Raven 3 boards.
Given this we're running into some pretty severe board configuration
limitations and about the only way we can get a apogee deployment
configuration to work given these limitations is to program around the baro
sensor cutting out (apparently this occurs at 104k' MSL) and then add a
delay to the event calculated by taking the simulation time it takes to get
to 104k', subtract that from the simulation time to apogee, and configure
the delay time value to be equal to that value. As you can imagine this is
not an entirely ideal approach.

Given this I've offered Mike my EasyMega with the latest firmware to use.
But I wanted to ask the list what is the recommended method for getting
reasonably accurate apogee deployment events to work when you're above the
effective range of the baro sensors we use on our various FCs. My
expectation is that at worst I can configure the pyro event as a simple
timer by enabling the following configurations.

Pyro Channel A
*Height above pad greater than (m)* enabled and configured for *10,000*
meters to ensure Mike's well above ground for the event to occur.
*Time Since launch less than (s)* enabled and configured for *85* seconds.
*Time Since launch greater than (s)* enabled and configured for *84 *
seconds.

Would that configuration work as a "pure timer" apogee deployment event
envisioned for 84 seconds after liftoff? Is there another way to configure
apogee deployment events above 100k' on the EasyMega that would be a
smarter or more advantageous way of accomplishing this task instead of a
simple timer configuration?

Any advice in this area would be much appreciated folks.

Kind Regards,

Andrew Hamilton
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