Blheli32 no active motors found

[ambrojo (Víctor Ambrojo)]

Hi everyone, I am new to this world, I’m trying to configure my ESC using passthrough. I’m using a black cube with ArduCopter 4.3.1.

Following the Ardupilot manual i have set these params:

MOT_PWM_TYPE - DShot150 (tested with DShot300 and 600 too)
SERVO_BLH_AUTO - 1
SERVO1_FUNCTION - disabled
SERVO2_FUNCTION - disabled
SERVO3_FUNCTION - disabled
SERVO4_FUNCTION - disabled
SERVO9_FUNCTION - motor1
SERVO10_FUNCTION - motor2
SERVO11_FUNCTION - motor3
SERVO12_FUNCTION - motor4

My motors are connected to AUX 1-4.

When I try to use Blheli32Suite the following mensage is shown:
Initialization of serial 4way failed, no active motor outputs found!
Please select an apropiate motor output protocol in Ardupilot!

There is no way to get connected to the software(I need to set motor to bidirectional). I found some theads related to passthough issues but none of them fixed mine.
Am I doing something wrong?
Thanks for your help!

[dkemxr (Dave)]

After connection to Mission Planner on the Messages tab what does the RCOUT message say?

[Yuri_Rage]

Maybe simplest thing first: confirm the ESC is connected to battery power. USB alone won’t do it.

[dkemxr (Dave)]

The 1st question from the Bangalore based Tech Support call center. “Is the power cord connected sir?”

[ambrojo (Víctor Ambrojo)]

RCOut: PWM:1-8 DS300:9-12 PWM:13-14 (DShot protocol I set up before)

[ambrojo (Víctor Ambrojo)]

Battery is connected directly to ESC. If I use a servo tester motors spin, so I think this is working fine.

[dkemxr (Dave)]

What ESC is it? Attach the parameter file.

[ambrojo (Víctor Ambrojo)]

ESC: MAMBA F55 4in1.
Here is the param file with MOT_PWM_TYPE=4 for DShot150
test.param (16.3 KB)
I have tried to modify SERVO_BLH_MASK (8-12) and SERVO_BLH_OTYPE with the same error in BLHeliSuite.

[dkemxr (Dave)]

@ambrojo

I have tried to modify SERVO_BLH_MASK (8-12) and SERVO_BLH_OTYPE

Those are not typically required but understandable that you are trying it when it’s not working. A suggestion that I have seen several times before. Set it to Dshot600 and try changing SERVO_DSHOT_RATE . Try all options.

Out of curiosity you said I need to set motor to bidirectional That is not common for Copter, what’s the use case?

[ambrojo (Víctor Ambrojo)]

This is for an omnicopter with 8 motors. But first of all the ESCs have to be set to bidirectional. I’m using a cube so there is only 6 dshot outputs, after configuration I’ll use MAIN outputs with PWM.

@dkemxr

Set it to Dshot600 and try changing SERVO_DSHOT_RATE . Try all options.

I will try your point as soon as possible, but right now i’m running out of ideas. I even try a betaflight passthrough with an older FC, so old it cannot be updated and passthrough is not supported in that version…

Thanks!

[dkemxr (Dave)]

@ambrojo

I’m using a cube so there is only 6 dshot outputs, after configuration I’ll use MAIN outputs with PWM.

You need a Flight Controller capable of 8 Dshot outputs!

[ambrojo (Víctor Ambrojo)]

DShot is not mandatory once the esc is configured. It would be great to have 8 nice DShot outputs but cube has only 6

After trying every single option, I have done it!!! There is something wrong with version 32.9.0.5 Blheli Suite. I finally downloaded 32.9.0.3 and it worked. But only with DShot600, not 150 either 300. It worked as it should:
MOT_PWM_TYPE - 6
SERVO_BLH_AUTO - 1

Thanks for your help!

[coaxftw]

Lastest Arducopter release.
RCOut: DS300:1-8 PWM:9-13 (only working with DS300 and DS150 interestingly enough)

I face a similar problem in trying to connect the ESCs via BLHeli32 and getting the same error message

I cannot find an older version from BLHeli32 like you mentioned. Could you maybe provide a download link? Thanks for any help!

[dkemxr (Dave)]

What Flight Controller? Post your parameter file.

[coaxftw]

Cube Orange
BRD_IO_DSHOT = 1
BRD_SAFETY_DEFLT = 0
SERVO_BLH_AUTO = 1
SERVO_BLH_MASK = 255 (Channel 1-8, I tried channel 1-6 too as I only use 6 channels)
SERVO_DSHOT_RATE = 0 (default 1Khz)
SERVO_DSHOT_ESC = tried 0, 1 and 3
MOT_PWM_TYPE = 5 (300, only 300 and 150 are working)

[dkemxr (Dave)]

SERVO_BLH_MASK,0 (not needed)
SERVO_DSHOT_ESC,1
MOT_PWM_TYPE,5 (Dshot300 is the highest you can use on the IOMCU/main outputs).

What ESC’s?

[coaxftw]

T-Motor F45A 32Bit

Post must be at least 20 characters.

[dkemxr (Dave)]

@coaxftw

T-Motor F45A 32Bit

Don’t see a problem.

[coaxftw]

Me neither, but it is still not working. RCOut: DS300:1-8 PWM:9-13

That is why I wanted to try my luck with an older version on BLHeli32, but I cannot find any.

[dkemxr (Dave)]

You don’t need to select the Interface. Select the Mavlink com port (not the SLCAN port obviously) and then connect. Example here with a different Flight Controller but it’s the same for all.