BL3500 and the MCL/PL connector

156 replies
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Based on your testing (thanks to both of you) I am asking Curious-dreamer to get in touch with the seller of the unit to ask what he modded and to please share it with us. Seems like 8 years ago so hopefully the guy still exists, has the same contact details and remembers what he did to the unit .. fingers crossed
curious-dreamer emailed the seller asking for any modding done to the unit, now we need to wait for the feedback
Unfortunately curious-dreamer is not getting any feedback yet from the seller of his BL3500 ..

I got two more BL3500 in the meantime (so four now, really) and would love to get this to work
To bad. At one point I found a link to another type of modification in this post 

Location: Denmark

A little update to this thread as I have acqured an Almando Masterplay. More info about that in one of the first posts where this is mentioned as a solution for driving a BL3500 

Location: Denmark

Beolink3500-Standalone (only MK1 so far)

With the help of this project and AI, I created an ESP32 that simulates an MCL/ML master via PL. With this solution, the trick Menu 004 is not necessary. That means after power off you do not need to open MCL anymore. Theoretically it's possible to connect several sources and switch between them. In other words you can use Beolab3500 as Soundbar or Standalone Speaker.

for more info see

Location: Villach, Austria

swo
Great! Any chance to get one of these?
Beolink3500-Standalone (only MK1 so far) With the help of this project and AI, I created an ESP32 that simulates an MCL/ML master via PL. With this solution, the trick Menu 004 is not necessary. That means after power off you do not need to open MCL anymore. Theoretically it's possible to connect several sources and switch between them. In other words you can use Beolab3500 as Soundbar or Standalone Speaker. for more info see github.com/wolfgangschneider/Beolab3500-Standalone
This project sounds very interesting. When you mention that it theoretically is possible to connect several sources I guess that the switching of them would have to be a separate device controlled by the ESP32 depending on which source is selected with the remote control? Regarding the MK1 only I don't know if my earlier post (and the following post) in this thread can help figure out how this could also work for BL3500 MK2 The circuit in the MK2 has been changes so part of it is connected to the Powerlink Pin 4 on signal.      

Location: Denmark

@Madskip  Deepened on source selection on BL3500 a ESP32 pins switch on.  you can control extern devices source input or whatever with this pin
`</div> <div>ESP32  — wrover⚠️ work in progress, will change</div> <div> <div> <div>ESP32 — wrover  ⚠️ work in progress, will change</div> <div>┌───────────────────────────┐</div> <div>│  GPIO4  (TV)      ●───────┼──► HIGH while TV is the active source</div> <div>│  GPIO5  (Radio)   ●───────┼──► HIGH while Radio is the active source</div> <div>│  GPIO17 (PC)      ●───────┼──► ...             ──► to a separate audio-switch board</div> <div>│  GPIO19 (CD)      ●───────┼──► ...                 (not part of this project)</div> <div>│  GPIO22 (Phono)   ●───────┼──► ...</div> <div>└───────────────────────────┘</div> <div>`
@Madskip II yes I saw . MK2 is on the list - coming soon
In case I add navigation (Next/Prev/pause) support for possible Bluetooth device I reduce that list. @Klaus: I'm not finished so far and currently it looks -> see next post

Location: Villach, Austria

swo
I added a Bluetooth input device. The Left/Right keys on the Beo4 / Beolink 1000 are stepping through the Spotify (or any player on pc) playlist.

Location: Villach, Austria

swo
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