68kMLA Classic Interface
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| ADB Busboy: Adapter for USB peripherals over ADB | |||||||||||||||||
| Posted by: Scott Squires on 2017-03-19 14:46:39 Thanks for the comments everyone. I'm still working on the bootloader which has had a lot of road blocks and detours. It's important to get the bootloader ready because it is the way that you'll be able to update the software when I develop new features. The original one I intended to use turned out to be incompatible. I tried to get a commercial one to work, but it lacked support for USB hubs. So now I'm adding USB host support to the manufacturer's bootloader. | |||||||||||||||||
| Posted by: defor on 2017-05-09 20:39:52 Definitely watching this closely! | |||||||||||||||||
| Posted by: Scott Squires on 2017-05-11 20:42:08 So, a few things have happened since my last update. The good news is that my bootloader is basically working. There are a couple little tweaks left to implement. But it does its job of updating the board firmware. I was being clumsy with my bench power supply and accidentally released the magic smoke. So I had to assemble a new board. During testing the new board, I found that the integrated usb hub works, but if I connect another downstream hub, it fails. At this point I don't remember if I ever tested that on my original assembled board. I did test it on the development kit board, and it worked. So I don't know if it's a problem in my board design or a defect on this board. The pcb has a slight pressure mark on one of the usb traces. Otherwise, I can't find any defect. If that were the problem, I don't think the onboard hub controller would work either. The one empty pcb I have left has a pressure mark in the same spot. So to make eliminate that possibility I would have to order more pcbs. And they would probably have the same issue. It could be the hub controller I'm using. To test that idea I would have to redesign the board for a different controller. Ugh. | |||||||||||||||||
| Posted by: CelGen on 2017-05-18 22:00:18 So what is your price going to be now that BMOW is selling a competing (and overly ugly) product at $50 USD? | |||||||||||||||||
| Posted by: Scott Squires on 2017-11-06 18:20:43 A related topic came up in IRC today so I figured I should really post an update. I solved the unreliable behavior with daisy-chained hubs. Some USB devices draw a lot more inrush current than others. Adding a capacitor to each port solves this problem. I redesigned the PCB to be about 40% smaller, switched to an RGB status LED, upgraded the ESD protection diodes, and probably a couple other things I have forgotten about. I haven't ordered this new board yet. I want to review the layout again first. When I will get around to doing that, I don't know.  | |||||||||||||||||
| Posted by: 68krazy on 2017-11-08 13:48:38 Did someone say R G B ?!  Sounds like this is going to be a very refined product when it's done. Looking good so far! | |||||||||||||||||
| Posted by: Trash80toHP_Mini on 2017-11-08 14:53:26 I've had KVM switches and conversions on the brain for a bit now. Wondered if there might be a better spot than the DIN port to hook something like this into a TTL switchbox setup? | |||||||||||||||||
Posted by: bbe on 2017-11-09 15:46:55A related topic came up in IRC today so I figured I should really post an update.Please, let us know the salestart.... | |||||||||||||||||
| Posted by: timmerk on 2017-12-25 08:35:22 Will this be basically the same thing as the ADB-USB Wombat (https://www.bigmessowires.com/usb-wombat/) ? | |||||||||||||||||
| Posted by: Scott Squires on 2017-12-25 15:27:46 It's almost the same as USB Wombat. The primary differences are : * ADB Busboy has 2 USB ports * ADB Busboy only allows you use USB peripherals on ADB computers, not the opposite. * ADB Busboy has better power protection between the ADB host (computer) and USB bus. | |||||||||||||||||
| Posted by: mietek on 2019-03-21 09:45:37 What happened to ADB Busboy? Will you release the sources? | |||||||||||||||||
| Posted by: Scott Squires on 2019-03-21 13:37:10 I have pivoted the project in a different direction. Keeping quiet about it until it's ready, because knowing me, it could be a while. | |||||||||||||||||
| Posted by: mePy2 on 2019-10-18 07:16:49 Updates? ... | |||||||||||||||||
Posted by: daanvdl on 2025-03-07 04:18:14My understanding is that the Kensington mouse had both USB and ADB electronics inside, and switched between them depending on what it was connected to. The intelligence was in the mouse, not the adapter.After buying a Kensington 64210 and the lack of an adapter cable I can indeed confirm in having two microcontrollers in the mouse. The breakout cable is just passive. For completeness and future reference, I reverse engineered the pinout back to the two microcontrollers. The Kensington 64210 MiniDin8 breakout cable pinout is:
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