Hi


I am trying to setup my A3 Pro and getting as mush info as possible.  Having said that, I am running the T motor 80A HV ESC and I am confused on the two different power sources I have to run.  I understand that I have to power the flight controller and will with 12s, but the separate power for the ESC I am a little lost.  How much power do I need for the esc? Also, what is the voltage range for the ESC power.  Much appreciated.  Thank you.

In this picture is the wiring for the ESC and I circled in blue the wires that need to go the A3 flight controller, but there is just signal and ground.  I  see a power wire coming off the ESC, but I am not sure the voltage there (maybe 5v).  Would I take that red power wire and plug it in the middle of the signal and ground? Thank you.

Anyone, please help.

Tmotor ESC connect to the A3 is very simple.
3 thick black ESC wires - must be connected to the motor
2 thick ESC R/B wires - connected to battery
3 thin ESC wires must be connected to M1-M8 A3 terminals. White wire from ESC must be connect to terminal A3 on signal pin on side notch key

everything.

Thank you so much for your reply. So, does the red thin wire go in the middle of the white and black thin wire? I circled it in purple.

For A3 of the three-wire tmotor esc wire, only black and white line are important - the signal and gnd.
Red line is not needed  for A3 - its only power +5v,  but A3 has its own power supply (it seems + 9v)

White line - its PWM signal, not PPM.

Ok, thank you so much. I thought I have read this forum that the A3 needed two different power sources for the actual flight controller and ESC's.

This is what I read on here that the Flight Controller where the ESC's plug into need power into the FC.  


Two power sources, one for ESC and the other for FC.
- power everything on
- run Assistant 2
- Calibrate all ESC
- props off continue
- everything starts to beep and doesn't stop
- unplug ESC
- Press continue
- plug ESC power back in and they all beep once
- press finish

I appreciate everything Slav Webster, but just trying to figure out if I need the red wire in between the white and black.  Things I am reading on this forum say the flight controller needs a different power source for where the ESC's plug into.  Maybe a DJI moderator can help, please?

All went well and I want to thank Slav Webster for helping me.....greatly appreciated.

I have the same problem, but the FLAME ESC require 5v, if I get 5v from another pin of the A3 I can arm the motors, but every time I turn it on the craft I have to bind the controller, why?? Is there another solution for this red wire of the esc?

i have the same problem I can´t start the motors . I tried exactly what dji says but dont work.
Two power sources, one for ESC and the other for FC.
- power everything on
- run Assistant 2
- Calibrate all ESC
- props off continue
- everything starts to beep and doesn't stop
- unplug ESC
- Press continue
- plug ESC power back in and they all beep once...................this is the step that don´t work for me.
Please

djiuser_jA7nJHjC1Kyg Posted at 4-17 03:26
i have the same problem I can´t start the motors . I tried exactly what dji says but dont work.
Two power sources, one for ESC and the other for FC.
- power everything on

Hi,

How do you  to solve the issue?