Re: TT4 Display using TC2004A-03R
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I tried to trim this down to the new thread. Greg, From the diagrams in information posted, it appears you purchased the the Byonics LCD interface board and appear to be looking for an LCD display to use with it? The TC2004A-03R is a 20x4 display module with a 16-pin header which is capable of either a 4-bit or 8-bit interface.? As such, it will not directly interface with the TT4.? It requires the "TT4 Display board" which is also shown in the pictures.? So it appears you have everything you need to connect the display (and optional keyboard) to the TT4. So what is your question? a) How to interface the TT4 Display board and display to a TT4 kit ???? See page2 of the TinyTrak4 DK Adaptor Manual Version 1.3. ??? This requires you remove the 10-pin header, strip each wire, ???????? and manually solder the wires to the pins on the board of TT4 ??? There is no easy header to just plug into. b) How to interface the TT4 Display board and display to a TT4 prebuilt ??? See page 1 of the TinyTrak4 DK Adaptor Manual Version 1.3. ??? This version has a header, so plug it in to the socket (J9) c) How to interface the TT4 Display board and display to a MTT4B radio ??? See page 1 of the TinyTrak4 DK Adaptor Manual Version 1.3 (similar to prebuilt). ??? This version has a header, so plug it in to the socket labeled LCD-KBD I have used an LCD display on the TT4 Kit version (kind of a pain to solder to the pins) and the MTT4B. Firmware settings are: NODISP FALSE?????????????? (yes double negative means the display is attached) DDIST [true|flase]??????????? (depends on if you want to see ditance to other station on LCD) MSGCAP [true|false]??????? (set if you want to use the display/keyboard to send messages) RPATHDISP [true|false]??? (set to display full packet path.? Not sure this is serial or LCD) TXTDISP [true|false]??????? (set to disp[lay generated packets from computer on LCD - I think) I think that covers all of them specific to the LCD display.? I would start with ?? NODISP FALSE ?? TXTDISP TRUE and leave everything else as you had it.? You should see packets decoded from RF and the pc on the LCD screen. With the MTT4B or prebuilt, this should just work. ? If using the kit version and you don't see, check that everything is wired properly, Robert Giuliano
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