RC2014 Pi Zero serial terminal - no keyboard found

[Andrew Tracy]

Hello,

 

     I'm working on trying to get my serial terminal to work.  At first I could briefly see it boot and then only go to a black screen with a _ at the top left of it.  Resetting the computer wouldn't change that display at all.  I found mention here previously of someone using these files:  https://github.com/fbergama/pigfx/tree/RC2014/bin  So I tried them.  That has the unit "booting" now, but every keyboard I've tried doesn't work.  "No keyboard found" is what's always displayed on the initial screen.  I've tried a dell, microsoft, inland, inland wireless, logitec, as well as some no name keyboard.  I've tried a micro usb to hub adapter to these keyboards.  As well as a micro usb cable to a female to female usb plug.  Nothing seems to work at all.  I know the computer is working as I can hit the reset button on the computer and I get the prompt of what to boot to.  The zero is a wireless model if that makes any difference.  I also tried the card outside of the computer powered up from a USB supply and while it would boot, it still suffers from no keyboard found.  Is there something I'm missing?

Thanks,

Andrew

[Spencer Owen]

Hi Andrew,

The firmware that the Pi Zero Serial Terminal ships with is for the standard 1.3 version of the Pi Zero (non-wireless), so that will explain why you didn't see anything initially, but using the different firmware worked.

You've mentioned different types of USB adapters, but there's no mention of a USB OTG adapter. The OTG (On-The-Go) turns the Pi Zero from a USB Device to a USB Host.  I think that's the missing part of the puzzle, and should get most, if not all, of your keyboards working with it.

Let us know how you get on

Spencer

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[Andrew]

Issue resolved.  I repartitioned the SD card into a small 250mb partition for the PiGFX files and it sees the keyboard fine now.

Virus-free. www.avg.com

On Fri, May 13, 2022 at 11:40 PM Andrew <pat...@gmail.com> wrote:

Some additional testing.  I swapped it with another pi zero.  Same results of no keyboard found.  So I pulled the latest img files from https://github.com/fbergama/pigfx/tree/master/bin and tried those.  Same result.  So I was thinking surely this means there's a hardware issue with the keyboard/cables/exc.  For the heck of it, I loaded Raspberry PI OS on the SD card.  Well, the keyboard works just fine that way from this zero.  Even added a mouse and it worked.

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[Andrew]

Some additional testing.  I swapped it with another pi zero.  Same results of no keyboard found.  So I pulled the latest img files from https://github.com/fbergama/pigfx/tree/master/bin and tried those.  Same result.  So I was thinking surely this means there's a hardware issue with the keyboard/cables/exc.  For the heck of it, I loaded Raspberry PI OS on the SD card.  Well, the keyboard works just fine that way from this zero.  Even added a mouse and it worked.

On Fri, May 13, 2022 at 10:01 PM Andrew Tracy <pat...@gmail.com> wrote:

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