You need to press safety switch for signals for esc.
I have dji opto esc-s and start beeping still I press safety button.
Did you reflash the firmware to copter rather than plane? The two programs are vastly different. Walk us through your entire setup procedure.
When you go to calibrate the ESCs, are you pressing the safety switch once you hear the arming sound? That might be why the ESCs aren't calibrating.
Yeah, I've tried pressing it after the tones stop and also immediately on power up. The safety switch will go solid, but the esc just keeps beeping and throttle does nothing, nor does the esc sound like its calibrating.
-a thing to know: calibrating the ESC through pixhawk just does not work on some ESCs due to a race condition between the time required to press the safety switch and the time it takes for the ESCs to enter programming mode. So the easiest solution is not to use pixhawk to calibrate your ESCs. Just calibrate them by connecting them directly to your receiver channel 3. (Pixhawk does not need to be involved in the ESCs calibration process)
-another thing to know: it is normal it does not arm when putting your left stick down on the right bottom corner. APM:copter does a series of pre arm checks before allowing pixhawk to arm (even if you pressed the safety switch). To see what are arm check is preventing you from arming, connect pixhawk by telemetry to mission planner and it will show what pre arm check failed on the HUD display.
Alternatively you can deactivate the pre arm checks in the parameters list (can't remember the exact name of this parameter).
-about powering your pixhawk with a "modified power module", verify you feed the right voltage (use a multimeter)
Let us know of any progress
Thanks Hugues, I wasn't sure if calibrating the ESC through pixhawk was the reason they wouldn't spin up when everything seemed to be armed. I can successfully calibrate through my RC ch3. The ESCs are just beeping as if no RC is connected when I attempt with the pixhawk.
I tried deactivating the pre arm checks in parameters and still nothing.
Yeah i'll make sure the voltage is good on that, I think I checked it though when I was using it on the techpod.
Thank you everyone for the help and input, I'll try some thing tomorrow morning and update.
Going to try:
1. Reformatting SD Card.
2. Reflashing Firmware with Mission planner and doing the IO update.
3. Re do the setup wizard.
4. Manual ESC calibration with RC3 on receiver.
In the case of a corrupted flash, the IO update is typically the solution. Power on with the safety button and wait for these tones.
You try to re-calibrate the radiocontrol? One time solved me a similar issue with APM.
Re-format your SDCard...Doesn't hurt to try.