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Hi Jerry- I am already working on adding a hub to the T41-2.? I found what looks to be a good candidate on Aliexpress.? It's a small board. I wanted USB C connectors.? Here it is:

Since those native serial ports are all at digital levels (0 & 3.3VDC, & inverted from normal RS-232), you'd essentially need any of a variety of common TTL-to-RS232 level convertor chips in order to

Or we could use one of the traditional serial ports built into the Teensy hardware. There are eight of them. But looking at the Main Board schematic, I don't see much in the way of unused pins. ***

Well… I have plenty of boards in stock right now… over 100 sets of every board gearing up for Hamvention. Main boards are $1.50 and offset boards are $0.50…. plus shipping Paypal fees, and tax.

Here’s another thing. There are other ways to interface USB to the Teensy if you need more USB hardware. The FT201, FT233, FT311, FT2222 are all devices that sit on one of the I2C busses as a USB

That’s a good idea and actually, I think I saw an article on someone using a USB server device with their T41. I don’t know how that works but its out there… Dr. William J. Schmidt - K9HZ J68HZ

Jerry: could you just use the standard Serial + Audio USB configuration on the primary microUSB port, then add an external USB-to-serial adapter plugged into the USBhost port & use that additional

There was some work done last year on v11 to patch the Audio library for USB audio at a 192k sample rate.? John reported success passing audio over USB to his Ubuntu box. I developed a PC server app

No cables attached except for Ribbon cables and rf coax. Nothing attached to Audio Hat. I think I will start on new Main board (don't believe I could get hearers off even with my vacuum sucker) and

Very uncharacteristic... Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand

*** I asked on the "Audio" forum. I also asked on the "technical questions" forum. No Joy. I even posted my usb_desc.h. I was hoping the Paul Stoffregen would take one look at it & tell me what I did

Lots of examples out on the PJRC site... Lots of the people out there are MIDI and Sound people... know a lot about USB stuff... If you ask a question in the forum, you may get too many answers...!

All, I have been working on CAT ( remote control ) for the T41. I re-architected it to a data-driven approach that is much cleaner and will be easier to maintain and expand. I have the basics running:

Tried 2 new Audio Hats no luck :( Tim

--------------------------------- I am going to flat out lie and say I've never missed a pin or soldered it incorrectly. I have half a thought that hopefully someone can either finish or explain why

Yeah I’ve had trouble with those cheap Chinese sockets too. Buy the good ones… they are just a few cents more. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

Cables could be an issue too… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa

Rick Same here I did eliminate the extender and just used long pin female headers to get hat above heat sink. I have to play with reseating Teensy to get I2C to work properly. Once tweaked it seems

Didn't you say that you've already trial a second audio hat? Jack, W8TEE

I actually had to ditch the extension board. After several intermittent software issues I discovered that by pushing down on the teensy and restarting it would work normally for a while only to happen