Note that you must use a plain, old-fashioned PS/2 Keyboard to make this work in most cases. A USB Keyboard with an adapter will generally not work since it may require special drivers, or it may "kinda-sorta" work leaving you hanging out with some F keys that don't function. Fortunately, 2/3rds of PC users in America have PS/2 Keyboards in the basement or garage!
73,
Allen AF6OF
On Wednesday, September 20, 2023 at 07:02:12 AM PDT, Rob Giuliano via groups.io <kb8rco@...> wrote:
Are you trying to connect to a TT4 kit, or 'prebuilt"? Assuming 5V and Ground are good since the display is working. If it is the kit, you probably want to check the ribbon cable soldering on pins 28 and 29 (of the micro). These need to go to pins 9 and 10 of the 10-pin header and up to PS/2 pins 5 and 1 (respectively).
Next, ensure you are not using any of the digital pins for telemetry (these are used for the display and keyboard.
When connected, press <F5> (Function key F5) to enter "Configure mode" and type MSGCAP TRUE The display should show the setting as TRUE. Press <F4> to create and send a new message. ? ? ? I had mine on the MTT4B (same header as the prebuilt).? Never used a keyboard, but as I recall ... ? ?It prompts you for a "to" (target) callsign.? ?Type one and press <Enter> ? ?Then type a message and press <Enter> ? ?It should send the message. Firmware manual page 2 has more. ------- Robert Giuliano KB8RCO
