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Only able to assemble 2x because of limitted budget. One for peggy, one for houston is POR
testing plan developed and executed Daniel Puratich just meant as a minimum statement of what will be tested
assistance from software people required to setup rpi and pixhawk
proof of completion of these as described in this doc is given in RPi Interface Rev B Photos
Testing the “Competition 2025” Variant only because this is the only one we’re using for now.
Power Testing
does buck work on its own
yes
no rails are shorted (probed in advance)
reasonable power supply current
does hot plugging with battery kill it,
doesnt die
how does it look onscope?
looks good,
see photos
Does it power rpi
yes
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(pin order is correct on the header and variant is satisfactory)
Software Testing
does killswitch kill uart when harness breaks?
Yes, if the S pin gets unplugged from ground, the UART signal is killed. (didn’t test if some other pin falls out)
does pixhawk uart comms work when killswitch disabled via shorting header pins?
the pixhawk and rpi comms should be validated on rev A boards (which are known good) to prove the rpi software is working correctly. We are trying to test the rev b board here and not the rpi software stack ya know …
Yes, can read heartbeats and connected to the device, just no GPS data since in the bay
does pixhawk uart comms work with killswitch disabled via pixhawk gpio?
Not tested, don’t know how to switch pixhawk gpio pins on/off
do power leds work
Seems to work: green lights are always on, pi and pixhawk is powered on properly
Although sometimes the pi does say it does not have enough current (<5A), but that might be because the battery used was at 40%?
this was reported by autonomy people and seems like a major issue …. the rpi should be able to get all required current … EE is following up in chat
do uart indicator leds workdoes killswitch work
Red LED is on when sending data from rpi to Pixhawk (working)
Blue LED is typically always on
See comment in the schematic, this is due to an issue in the design that is not easily solvable
Flight Testings
does it work on a flight test?