"Hi Andrew. 
There is no difference in other RC calibration values between PX4 and APM versions. here is the channel 2. 

RC2_DZ,30RC2_MAX,1964RC2_MIN,1054RC2_REV,1RC2_TRIM,1054

1 1 RC2_DZ 10.000000000000000000 91 1 RC2_MAX 1964.000000000000000000…"

"Thank you Andrew. I did a couple of quick tests to make sure RC_PWM values are correct. Here are my PX4 values
1 1 RC3_MAX 1962.000000000000000000 91 1 RC3_MIN 1055.000000000000000000 91 1 RC3_REV 1.000000000000000000 91 1 RC3_TRIM…"

"Today I tried APM:Copter V3.4-dev (388a6683) and my ESCs are still not starting after the boot. With PX4 I am getting 5 long beeps during the boot (I am running on 5s). With APM two long beeps and then continues short beeps. I believe it is…"

"Hi Andrew, Could you please notify here when the issues will be fixed. I have the same problems with ESC not starting and no COM link after few seconds.
I will be more than happy to test it on the bench. I am not confident flying my drone with this…"

"Today I loaded px4 stack and tried to calibrate everything and ESC calibration worked. I can arm and start motors. Is something with APM stack, not the hardware."

"Hi,

I am trying to troubleshoot issues with my ESC and PixRacer. Yesterday I solderd all the connections  to my Splash Drone. I believe it is XWing 40A ESCs.
And as soon as I connect power it beeps constantly every second. It is doing the same if I…"

"Thank. I will try to test it with the latest build. With my 3DR PixHawk I am able to measure voltage without even arming the motors, it may not be very accurate, but close. With PixRacer I was getting way low values and it triggers falisafe, so I…"

"Is the voltage/current sensor working on PixRacer? I have ACSP4 and cannot make it to show any reasonable values."

"I have the same problem with my PixRacer. So far used QGroundControl to flash APM. There is a special option for that. Still playing with everything on the bench. Have GPS/radio working, but cannot make APM to read correct voltage/current from  ACP4."