Hello! I'm trying to get bidirectional dshot working on my speedy bee f405 v3 stack. I loaded J-H-50 - Bluejay, 0.19, 24 kHz and I keep getting this error (see picture). I was able to get my motors spinning fine when using BLHeli_S. Any ideas?

24kHz

I assume that you have a LiPo plugged in when the RPMFILTER arming status flag is appearing (?)

If you go to the Motors tab, are any (or all) of the ESCs showing a red error value? That will indicate if the issue is with just one or a couple of the ESCs, or all of them.

In the first instance I would try reflashing Bluejay 0.19 to the ESCs and if that still doesn't resolve the issue then try downgrading to an earlier version (i.e. 0.18 / 0.17 / 0.16). Basically, a process of elimination to try and find out if it's specific version(s) of Bluejay which exhibit that issue.

(19-Sep-2023, 01:13 AM)SnowLeopardFPV Wrote: I assume that you have a LiPo plugged in when the RPMFILTER arming status flag is appearing (?)

If you go to the Motors tab, are any (or all) of the ESCs showing a red error value? That will indicate if the issue is with just one or a couple of the ECs, or all of them.

In the first instance I would try reflashing Bluejay 0.19 to the ESCs and if that still doesn't resolve the issue then try downgrading to an earlier version (i.e. 0.18 / 0.17 / 0.16). Basically, a process of elimination to try and find out if it's specific version(s) of Bluejay which exhibit that issue.

I've tried the 3 available bluejay versions, but I'm still getting the RPM FIlter error. As per Oscar Liang, my stack should be able to support bidirectional dshot. 

Any Ideas?

Oscar Liang Article (Same Stack)




https://oscarliang.com/speedybee-f405-v3...0as%20well.

You missed a fairly important question SnowLeopard asked for troubleshooting this issue:

If you go to the Motors tab, are any (or all) of the ESCs showing a red error value?

(20-Sep-2023, 09:44 AM)Mike C Wrote: You missed a fairly important question SnowLeopard asked for troubleshooting this issue:

If you go to the Motors tab, are any (or all) of the ESCs showing a red error value?

All of the motors are showing 100% error

Do you have dshot bitbang enabled?

This is a terribly designed FC with many issues, one of them being that they used motor outputs that cannot be mapped to timers. Thus, Betaflight needs to use bitbanged dshot or burst dshot for motor outputs. Burst dshot is incompatible with bidirectional dshot, so the only option is to use bitbanged dshot.

Go to the CLI tab in Betaflight, type `get dshot` and make sure you see the following:


If dshot_burst is not set to OFF, or dshot_bitbang is not set to ON, enter this in the CLI:


The other major issue is that they put OSD and blackbox flash on the same SPI bus, so you cannot use both at the same time. If you are using analog video, make sure blackbox is disabled in Betaflight.

Stick with Bluejay 0.19 on the ESC.

(24-Sep-2023, 04:42 AM)V-22 Wrote: Do you have dshot bitbang enabled?

This is a terribly designed FC with many issues, one of them being that they used motor outputs that cannot be mapped to timers. Thus, Betaflight needs to use bitbanged dshot or burst dshot for motor outputs. Burst dshot is incompatible with bidirectional dshot, so the only option is to use bitbanged dshot.

Go to the CLI tab in Betaflight, type `get dshot` and make sure you see the following:

Code:

set dshot_burst = OFF
set dshot_bidir = ON
set dshot_bitbang = ON
set dshot_bitbang_timer = AUTO

If dshot_burst is not set to OFF, or dshot_bitbang is not set to ON, enter this in the CLI:

Code:

set dshot_burst = OFF
set dshot_bitbang = ON
save

The other major issue is that they put OSD and blackbox flash on the same SPI bus, so you cannot use both at the same time. If you are using analog video, make sure blackbox is disabled in Betaflight.

Stick with Bluejay 0.19 on the ESC.

My dshot was not set up correctly. I set up it in the CLI to match how you showed it and disabled the blackbox setting. However, I am still getting the RPMFILTER Error which will not let me run my motors. 

Also, I tried turning off bidirectional dshot and can't seem to get my motors to spin with bluejay, but they will spin with BLheli_s.
Any more ideas?

thanks

SOLVED: I need my ESC/Motor Protocol to be DSHOT300. It was set to DSHOT 150.

(24-Sep-2023, 07:52 PM)NewFPVPilot Wrote: SOLVED: I need my ESC/Motor Protocol to be DSHOT300. It was set to DSHOT 150.

Not something I would have thought of asking you to check. Thanks for the update.