BlueBus: A fully integrated A2DP Bluetooth solution

[t3ddftw]

The firmware update corrected the display issue, thanks Ted.

Those last updates fixed my battery drainage issue too! Thanks Ted!

Can you guys share the build date of your M3s and weather or not you have Navigation?

I suspect this was an issue for early LCI cars without Navigation.

Hi! Did anyone else notice that you cannot pause music?

I was once able to do so over the <> Button, but now it keeps auto "playing" again. That is quite annoying when I don't want music to play but Maps to still speak out directions.

Sometimes the correct Playback state goes isn't known to the BlueBus, so it may think it's paused while it's actually playing, and therefore it will try to play while it's playing. I plan to fix this in 1.4.0 -- for now, pausing or playing on the phone itself will "sync" the two.

Thanks!
-Ted

[sda2]

Hi! Did anyone else notice that you cannot pause music?

I was once able to do so over the <> Button, but now it keeps auto "playing" again. That is quite annoying when I don't want music to play but Maps to still speak out directions.

[PipeUy]

Those last updates fixed my battery drainage issue too! Thanks Ted!

[strummr]

https://t3ddftw.s3.us-east-2.amazona...1_3_3_rc19.hex

This fixes that problem.

I was in the process of adding code to allow the screen state to persist more readily on radios where the CD menu is populated (BM54, or any of the E8x radios), and that caused an internal conflict with the BlueBus.

-Ted

The firmware update corrected the display issue, thanks Ted.

[t3ddftw]

Ted,
I can't comment yet on the parasitic loss issue - after installing the firmware you shared '1_3_3_rc18.hex' - since I don't have enough data to report (only installed the firmware a couple of days ago, and battery was fully charged in the interim), but the firmware update has created a new issue.

The main display (not the track/format bar display at the top), has turned blank, with the track info flashing every 5-6 seconds or so; I also can not disrupt the process by trying to go into settings - BlueBus audio function via bluetooth is fine.

I've had the drive cycle on 2-3 times, and earlier today, reconnected the BlueBus connections - no change. Here's a video clip: https://youtu.be/2ntraz7CyvU

https://t3ddftw.s3.us-east-2.amazonaws.com/BlueBus/firmware/bluebus_1_3_3_rc19.hex

This fixes that problem.

I was in the process of adding code to allow the screen state to persist more readily on radios where the CD menu is populated (BM54, or any of the E8x radios), and that caused an internal conflict with the BlueBus.

-Ted

[strummr]

To close the loop on this, the log file showed the ignition going off, but the BlueBus was writing the radio UI.

Upon closer inspection of the messages, the ignition off message was seen by the BlueBus and the phone was disconnected, but the radio did NOT tell the CD Changer (BlueBus in this case) to stop playing. The effect here is that without the stop playing message, the BlueBus didn't update its internal state to know that it should no longer be writing the display.

I fixed this by adding code to update the internal state when the ignition off message was seen, only if the "stop playback" message had not already been processed.

I believe this to be a bug with the specific software revision of the radio as I have never encountered this in the past.

Nevertheless, it is fixed in this software revision:

https://t3ddftw.s3.us-east-2.amazonaws.com/BlueBus/firmware/bluebus_1_3_3_rc18.hex

Update instructions are here: https://github.com/tedsalmon/BlueBus...rmware-Upgrade

Thanks!
-Ted

Ted,
I can't comment yet on the parasitic loss issue - after installing the firmware you shared '1_3_3_rc18.hex' - since I don't have enough data to report (only installed the firmware a couple of days ago, and battery was fully charged in the interim), but the firmware update has created a new issue.

The main display (not the track/format bar display at the top), has turned blank, with the track info flashing every 5-6 seconds or so; I also can not disrupt the process by trying to go into settings - BlueBus audio function via bluetooth is fine.

I've had the drive cycle on 2-3 times, and earlier today, reconnected the BlueBus connections - no change. Here's a video clip: https://youtu.be/2ntraz7CyvU

[Rekpoint]

I wanted to report back, Stopped at my parent's house to flash his blue bus. The firmware revision did it and after a minute or so the blue light on the bluebus turned off finally.
A battery eater no more! Thanks for your help Ted!

[t3ddftw]

Ted, what's the release notes on the new firmware?

It’s not a final release, so it’s not posted on the website and I don’t have the release notes together.

[sev]

Ted, what's the release notes on the new firmware?

[t3ddftw]

Let it sit again overnight. Small drop in voltage, but nothing significant and it fired right up.

Thanks Ted, I think we're good!

Glad to hear it!

[duperdog]

So far, no drop in voltage overnight. Will leave it for the rest of the day and see if there's any significant drain. 🤞

Let it sit again overnight. Small drop in voltage, but nothing significant and it fired right up.

Thanks Ted, I think we're good!

[t3ddftw]

Ted - some newbie questions:

1) can the BlueBus simply turn off as soon as the ignition key is in the OFF position? Would this mitigate any battery drain issues.
2) is there anyway to make BlueBus work with just the head unit on the dashboard (i.e., all the stereo equipment in the trunk removed, to save weight)?

1. No, this is far more nuanced. The CD Changer (BlueBus) is given constant voltage and then expected to turn off on a timer and back on when there's bus activity. If I turn off as soon as the ignition is turned off, the unit will immediately get turned back on by activity on the bus as modules do not stop speaking for about 30 seconds after the key is removed from the car. Further, if you sit in the car for any amount of time with the key out, then open the door, the electronics (including the BlueBus) will turn back on. For that reason, there's a bus inactivity timer that dictates if the unit should go to sleep or not

2. This was the "spec" for some Euro cars. You'll sacrifice a ton of audio quality, but the radio can be directly wired to the speakers to drive them, which allows you to rip the amplifier out.

-Ted

[duperdog]

Let me / us know how it goes, please



They've already shipped from the assembly house, so they do not have the newest build on them. Burning the updated software to each unit will add some delay in fulfillment, but it's probably something I will do anyways. I can certainly do it on request, though.

Thanks!
-Ted

So far, no drop in voltage overnight. Will leave it for the rest of the day and see if there's any significant drain. 🤞

[nyc951]

Thanks for the positive feedback! I'm glad everyone made it back alive



This shouldn't have happened to begin with -- please install the update linked below.





To close the loop on this, the log file showed the ignition going off, but the BlueBus was writing the radio UI.

Upon closer inspection of the messages, the ignition off message was seen by the BlueBus and the phone was disconnected, but the radio did NOT tell the CD Changer (BlueBus in this case) to stop playing. The effect here is that without the stop playing message, the BlueBus didn't update its internal state to know that it should no longer be writing the display.

I fixed this by adding code to update the internal state when the ignition off message was seen, only if the "stop playback" message had not already been processed.

I believe this to be a bug with the specific software revision of the radio as I have never encountered this in the past.

Nevertheless, it is fixed in this software revision:

https://t3ddftw.s3.us-east-2.amazona...1_3_3_rc18.hex

Update instructions are here: https://github.com/tedsalmon/BlueBus...rmware-Upgrade

Thanks!
-Ted

Ted - some newbie questions:

1) can the BlueBus simply turn off as soon as the ignition key is in the OFF position? Would this mitigate any battery drain issues.
2) is there anyway to make BlueBus work with just the head unit on the dashboard (i.e., all the stereo equipment in the trunk removed, to save weight)?

[t3ddftw]

Just installed the latest firmware and disconnected the trickle charger as I've been having the same parasitic drain issues, but didn't have the time to chase it down. Really hoping this resolves it as I've been reluctant to go anywhere and park it for more than a few minutes.

Thanks.

Let me / us know how it goes, please

Thanks for the update. Would any new unit purchased today forward have the latest firmware?

They've already shipped from the assembly house, so they do not have the newest build on them. Burning the updated software to each unit will add some delay in fulfillment, but it's probably something I will do anyways. I can certainly do it on request, though.

Thanks!
-Ted