"Hi Kyle

I'm no expert but I have used much of the same kit you list, so FWIW here are my thoughts :

1) Did you re-flash your AfroESCs? (See my overly length post earlier about that being the root cause of my similar issue with a 3DR Y6 + PixHawk +…"

"But what if you only use APM Planner?
Surely there must be a way to read these log files direct from card (I haven't found it yet....!)"

"To reassure myself that I hadn't somehow calibrated the throttle of the Afros without realising it, there are other reports of late 2013 shipments hitting max throttle at <1500us PWM here.
It really does seem that a batch of Afro30amps were shipped…"

"Christian - I take it back, it looks like your point 3 would have helped to isolate my problem after all...... 
:-)"

"Hi Ritche - do you recall what props you were using on each set up?
Also, which version of SimonK did you flash? "

"I've done a bit more digging on the Afro / SimonK params:


O_POWER & O_GROUND are ohms to power, ohms to ground. Which I believe is a voltage resister divider to get a reference voltage at the PWM sense pin. It's always used as a ratio so the…"

"Hi Christian
Thanks for your reply. To be clear, I'm interested in feedback and information on the topic of the combination of Pixhawk + AfroESC giving unexpected behaviour, unexpected PID settings for normal flight, and / or motor synchronisation…"