...
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%?
do uart indicator leds work
Red LED is on when sending data from rpi to Pixhawk (working)
Blue LED is typically always on, seems to be able to receive data (working)
Flight Testings
does it work on a flight test?