About

Please tell us a bit about your UAV interest

Ecological, archaeological, and agricultural mapping


Hometown:

State College


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Christian John posted a discussion
Hi all,I ran into an issue earlier this year when a gusty day pushed my FX-61 (elevon flying wing) into a nosedive and fatal crash.  Happily only the styrofoam was damaged, so I built a new one with the guts from that which crashed.  I made a few…
Jul 17, 2017
Christian John replied to Christian John's discussion Uncooperative Pixhawk Calibration Mode
"For anyone who may share the problem I describe above, the solution is a simple one:
It was a rookie mistake.  Because the pixhawk has a default two-step arming protocol, you need to be sure to perform BOTH arming actions before you can expect the…"
Jun 1, 2016
Christian John replied to Christian John's discussion Uncooperative Pixhawk Calibration Mode
"I tried calibrating the radio in manual mode, with the motor unplugged so I could reverse the throttle setting and recalibrate the transmitter before supplying power to the motor.  After that, I unplugged the battery, replugged in the esc, and…"
Apr 8, 2016
Christian John replied to Christian John's discussion Uncooperative Pixhawk Calibration Mode
"WOAH.  Reversing the throttle in radio calibration causes the motor to turn on at what seems to be max - but the pixhawk isn't even armed (safety switch still blinking)!!! Plus i'm in FBWA and not auto!!!"
Apr 8, 2016
Christian John replied to Christian John's discussion Uncooperative Pixhawk Calibration Mode
"Thanks, Chris.  I tried the arming sequence you suggested, still to no avail.  As arming isn't standard across esc's, I looked into my model specifically (HobbyKing 40A SBEC; manual…"
Apr 8, 2016
Christian John replied to Christian John's discussion Uncooperative Pixhawk Calibration Mode
"Oh - well that answers that question; thanks!  In followup, then - my motor is failing to function when the pixhawk is armed and I increase throttle.  MissionPlanner detects the change in the throttle stick, but nothing happens with the motor... Yet…"
Apr 8, 2016
Christian John posted a discussion
Hello all,I'm a new user so forgive me if I'm a moron for some element of the following question, but my issue is this:  My Pixhawk seems to refuse to enter ESC calibration mode.Background:  I am building a flying wing UAV for mapping missions.  I…
Apr 8, 2016