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  #191  
Old 06-26-2020, 11:21 AM
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Hey Ted,

As we are nearing the arrival of the unit...can you please check on my order for the jumper? I've not received it yet. Thx. Mike Gambill
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  #192  
Old 06-26-2020, 04:57 PM
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Quote:
Originally Posted by Blademan007 View Post
Ted,

First off, maybe update the 1st post in this thread for what you're looking for in each thread/forum: chassis install only, UI feedback, or both. How you want it broken down: e46 or e39/e53, and/or +/- Nav. And where each install type should make posts.

This is an e39 w/nav. I'll install the other unit in the e53, when it's fully sorted.

Review from a local drive today:
- Sounds great. UI on the Nav is great. Using the steering wheel controls is great. It surpasses what one would expect to have Bluetooth in these cars a couple generations old. So hats off for the design and execution!
- Using a iPhone + BT, streaming from iTunes. UI is great, and settings UI is much improved over what Ryan/e39Source has in his vid.
- Digital is much, much better. Use digital if possible.

Questions/Bugs:
- Electrical noise or interference when music is not playing. Amp is on, BT selected, music not playing. Once music starts, noise floor drops and music plays. Noise sounds digital (discrete tone/sounds) not analog noise. Seems to only come from front right speaker. BlueBus to amp is coax digital, so that can't be the source. Cable proximity to the amp? I can move it a few inches away to the CD changer to see if that helps.
- Autoplay enabled. Does this work only if the app is open? I closed iTunes app in the phone, and when car restarted, BlueBus played some random music from iTunes library. Another time BlueBus started playing music from Vox app. Note: I close apps often. I can try to leave iTunes app next time without closing. No biggie, since I could disable autoplay anyway.
- When connected, all phone sounds route through Bluetooth: notifications, camera clicks. No notifications/vibrations route to the phone. Is this expected?

The specification for the BlueBus BT 5.0 chipset indicates that transmission is ~1.5Mbps with a connected BT 5.0 unit. So better than CD quality is possible. Are there any limitations to BlueBus connecting to a BT 5.0 device, such as this Fiio M5?

Minor, minor bugs aside, this sound of music over BT with integration to our factory systems is amazing and well worth the price!!!
Question / Bugs:

- Did you unplug the analog audio connector from the BlueBus? Give this a try if not. I hate having both connected anyways.

- To be honest, I only send the "Play" command to the phone. What the phone and app(s) do with that is not up to me . I also don't have an iPhone, so I can't offer advice here.

- This is per device. I'm not sure iOS gives you a choice in the matter

Thanks!
-Ted
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  #193  
Old 06-27-2020, 07:21 PM
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Quote:
Originally Posted by t3ddftw View Post
Question / Bugs:

- Did you unplug the analog audio connector from the BlueBus?
- To be honest, I only send the "Play" command to the phone.
- This is per device.

Thanks!
-Ted
- Unplugged analog, no diff. Happens in this sequence: play music. Pause music. Electronic tones for 1 second. Then hiss. The hiss continues when amp is turned off. When amp is turned back on, hiss goes away. No hiss while playing music. Turning key to 0, stops/resets the hiss.
- I disabled auto play, no biggie.
- no worries.


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Last edited by Blademan007; 06-29-2020 at 03:03 PM.
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  #194  
Old 06-27-2020, 07:35 PM
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Quote:
Originally Posted by Blademan007 View Post
Ted,
The specification for the BlueBus BT 5.0 chipset indicates that transmission is ~1.5Mbps with a connected BT 5.0 unit. So better than CD quality is possible. Are there any limitations to BlueBus connecting to a BT 5.0 device, such as this Fiio M5?
Using VOX for iOS, played a few .flac files of various sample/rates all the way up to 192KHz/24bit stereo. All played with no issues and VOX passed song info to amp. BlueBus must downsamples the files, since 192/24 would be 9.2Mb/s over BT 5.0. But BT 5.0 real world is max ~1.5-2 Mb/s.


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  #195  
Old 07-06-2020, 12:38 PM
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Quote:
Originally Posted by Blademan007 View Post
- Unplugged analog, no diff. Happens in this sequence: play music. Pause music. Electronic tones for 1 second. Then hiss. The hiss continues when amp is turned off. When amp is turned back on, hiss goes away. No hiss while playing music. Turning key to 0, stops/resets the hiss.
- I disabled auto play, no biggie.
- no worries.


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The noise is likely from the lack of data stream from the BlueBus . Unfortunately, this happens to select few users, and I'm not sure why. Perhaps the software in the DSP?

-Ted
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  #196  
Old 07-06-2020, 12:39 PM
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Quote:
Originally Posted by Blademan007 View Post
Using VOX for iOS, played a few .flac files of various sample/rates all the way up to 192KHz/24bit stereo. All played with no issues and VOX passed song info to amp. BlueBus must downsamples the files, since 192/24 would be 9.2Mb/s over BT 5.0. But BT 5.0 real world is max ~1.5-2 Mb/s.


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The files are re-encoded to AAC (by your phone / device) prior to being transferred over the A2DP link.
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  #197  
Old 07-06-2020, 12:40 PM
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Everyone,


Here is the newest firmware, which I recommend EVERYONE upgrade to: https://t3ddftw.s3.us-east-2.amazona...bus_1_1_14.hex (Right Click > Save As / Save Link As)


Here are the upgrade instructions: https://github.com/tedsalmon/BlueBus...rmware-Upgrade



Here's the changelog:

[IMP] application: Version 1.1.14

* Shutdown all unused I/O ports

* Rename I/O Port defines so they are consistent

* Ignore values for coolant temperature that are outside of usual ranges

* Resolve issue with radio overlay button in BMBT UI causing the UI to jump back to overlay mode even when on OBC / Nav

* Add support for extended ASCII characters, since most BMW UIs support this encoding

* Resolve issue with BlueBus keeping vehicles awake via TEL ON by shutting it down when the ignition is turned off

* Resolve issue with BlueBus waking other modules up by pulling the I-Bus low just prior to sleep (introduced around v 1.1.12)



Thanks!

-Ted
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  #198  
Old 07-06-2020, 06:33 PM
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Thanks Ted!

Appreciate your diligence on these - I know I love mine and anything that makes it better, Iím certainly up for

Keep up the great work!


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  #199  
Old 07-06-2020, 11:50 PM
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Quote:
Originally Posted by Purplefade View Post
Thanks Ted!

Appreciate your diligence on these - I know I love mine and anything that makes it better, Iím certainly up for

Keep up the great work!


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Thank you!
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  #200  
Old 07-07-2020, 01:16 PM
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Hey guys,


I have some unfortunate news for everyone in the first batch who ordered in December:


I've recently figured out, after a few units turned up with similar failures, that a specific part (P-Channel MOSFET "Q2", for those curious) is failing pretty consistently due to it being under-rated for the voltage it's carrying.


The result is that this part is going to fail at some point, and may or maybe not take other components on the BlueBus out.


This is 100% my fault as I glanced by the value on the datasheet when originally shopping for a suitable part.


As I stand behind the BlueBus, I am going to be recalling every unit and I'm going to replace the part with one properly rated for the job.


If you are part of the second batch of BlueBus units, this DOES NOT impact you as I was able to have the correct part installed prior to assembly.



Q / A

Quote:
How do I know if my unit is affected?
=====================================
If you ordered in December, your unit is affected.



When will my unit fail?
=======================
At some point in the future. It's hard to tell, and I've only had 12 failures attributed to this part.



What happens if other parts, or the whole unit fails before you recall my unit?
================================================== =============================
All impacted parts will be replaced and you will be given a fully working BlueBus.



How will you handle recalls?
============================
I will soon be emailing users in groups of 50 to send their BlueBus units in. Units that have been in use longest will get priority, as they have a greater chance of failure. If your unit fails while you're waiting, I will immediately have you send the unit to me for repair. You will have 4 weeks to get your unit shipped to me, after that any failures will NOT be covered by me, and I will charge you for the part required to fix the unit.



Why did this occur?
===================
Reading is hard, apparently.



Is anything else on the BlueBus going to fail?
==============================================
Not likely! I've gone over the datasheets, typical application schematics and recommended layout guidelines for all parts on the BlueBus and everything else is fine.



What if I'm not in the U.S.?
============================
Users in the EU/GB will send their units to a gentleman I know and trust in Germany who will perform the repair.
Users elsewhere will have their units swapped out with one of my spares.

Let me know if you have any additional questions and please know I am so sorry about this issue!

Please refrain from emailing with regards to this unless your unit has failed as I'm the only person who fields questions.


Thanks!
-Ted

Last edited by t3ddftw; 07-07-2020 at 01:23 PM.
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