I`v had a problem since buying my new APM 2.5, the ESCs beep every 2 seconds. This shows an abnormal output. I have tried calibrating the ESCs and reloading the firmware 20 time and still no joy. I have just tested the output with an ociliscope…
"Yes I did do each ESC one at a time connecting them directly to the RC receiver. They all calibrated no problem at all but again once plugged back into the APM they would give the three beeps then beep constantly at 1 beep every 2 seconds. How…"