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Driving GPIO pins


 

Evening all

I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.

Thanks and regards
Steven VK2BOS


 

You?set up these commands: (they may not be exact since htis is from memory) but similar:

NODISP on
MSGCOMMAND?ON
etc

THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits

Bob


On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
Evening all

I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.

Thanks and regards
Steven VK2BOS


 

Steven
We use this function a lot here , including to change the operation mode of an DR1X Yaesu repeater (digital/analog).
If you want more information , I can send you.
73
Livre de v¨ªrus. .

Em s¨¢b., 3 de abr. de 2021 ¨¤s 21:54, Robert Bruninga <bruninga@...> escreveu:

You?set up these commands: (they may not be exact since htis is from memory) but similar:

NODISP on
MSGCOMMAND?ON
etc

THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits

Bob


On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
Evening all

I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.

Thanks and regards
Steven VK2BOS



--
PY5LF?
Luciano Fabricio


Livre de v¨ªrus. .


 

¿ªÔÆÌåÓý

On 2 Apr 2021, at 6:50 pm, Steven Heimann <vk2bos.lists@...> wrote:

I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.

Hi Steve,

Are you referring to this, perhaps? A passing mention on page 2 of the Alpha firmware doco:

The TinyTrak4 Alpha firmware can also react to incoming messages directed toward it, regardless if the display and keyboard are used. These messages include the ability to request a position report, and to remotely control digital outputs.?

I can¡¯t say I¡¯ve tried it, but the capability appears to be there. However, I didn¡¯t see any other mention of this capability in the manual.

73 Richard VK2SKY
______________

¡°We act as though comfort and?luxury were the chief requirements?of life, when all that we need to?make us happy is something to be?enthusiastic about.¡±?¡ª?Albert?Einstein


 

Bob,
I think I bought a TC2004A-03R board to interface with my TT4.
Have you or anyone in groups.io have the hookup and command settings for this board?

Thanks, Greg

-----Original Message-----
From: Robert Bruninga <bruninga@...>
To: [email protected]
Sent: Sat, Apr 3, 2021 5:54 pm
Subject: Re: [TinyTrak] Driving GPIO pins

You?set up these commands: (they may not be exact since htis is from memory) but similar:

NODISP on
MSGCOMMAND?ON
etc

THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits

Bob


On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
Evening all

I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.

Thanks and regards
Steven VK2BOS


 

I need more info. What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw@...> wrote:

Bob,
I think I bought a TC2004A-03R board to interface with my TT4.
Have you or anyone in groups.io have the hookup and command settings for this board?

Thanks, Greg
-----Original Message-----
From: Robert Bruninga <bruninga@...>
To: [email protected]
Sent: Sat, Apr 3, 2021 5:54 pm
Subject: Re: [TinyTrak] Driving GPIO pins

You set up these commands: (they may not be exact since htis is from memory) but similar:

NODISP on
MSGCOMMAND ON
etc

THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits

Bob


On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:

Evening all

I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet. I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered. Is my memory more faulty than usual? Could someone point me to some doco on this.

Thanks and regards
Steven VK2BOS


 










On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg
<k7sdw@...> wrote:









On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

¿ªÔÆÌåÓý

Looks similar to this one?

Byonics makes a display and interface for the TT4??

I don¡¯t have either.

73¡¯²õ

Don W.
KD4APP?
?


Get


From: [email protected] <[email protected]> on behalf of Gregory Lane via groups.io <k7sdw@...>
Sent: Tuesday, May 18, 2021 5:44:05 PM
To: [email protected] <[email protected]>
Subject: Re: [TinyTrak] Driving GPIO pins
?
I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg
<k7sdw@...> wrote:









On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

It strikes me as a lot of work to replicate a product ( Well, hopefully) that you can have in your hands from Byonics in two days, but a Ham's quest for knowledge ( And getting stuff done less expensively) is inexhaustible! Let us know how it works out, I would love to see what you come up with.

Allen AF6OF


-----Original Message-----
From: Don Woodward <dbwoodw@...>
To: [email protected] <TinyTrak@...
Sent: Tue, May 18, 2021 4:06 pm
Subject: Re: [TinyTrak] Driving GPIO pins

Looks similar to this one?

Byonics makes a display and interface for the TT4??

I don¡¯t have either.

73¡¯²õ

Don W.
KD4APP?
?


Get

From: [email protected] <[email protected]> on behalf of Gregory Lane via groups.io <k7sdw@...>
Sent: Tuesday, May 18, 2021 5:44:05 PM
To: [email protected] <[email protected]>
Subject: Re: [TinyTrak] Driving GPIO pins
?
I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg
<k7sdw@...> wrote:









On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

Tnx,?
I forgot the hookup, thanks for the info!
73 de Greg


On Tue, May 18, 2021 at 4:17 PM, vhsproducts via groups.io
<vhsproducts@...> wrote:
It strikes me as a lot of work to replicate a product ( Well, hopefully) that you can have in your hands from Byonics in two days, but a Ham's quest for knowledge ( And getting stuff done less expensively) is inexhaustible! Let us know how it works out, I would love to see what you come up with.

Allen AF6OF


-----Original Message-----
From: Don Woodward <dbwoodw@...>
To: [email protected] <TinyTrak@...
Sent: Tue, May 18, 2021 4:06 pm
Subject: Re: [TinyTrak] Driving GPIO pins

Looks similar to this one?

Byonics makes a display and interface for the TT4??

I don¡¯t have either.

73¡¯²õ

Don W.
KD4APP?
?


Get

From: [email protected] <[email protected]> on behalf of Gregory Lane via groups.io <k7sdw@...>
Sent: Tuesday, May 18, 2021 5:44:05 PM
To: [email protected] <[email protected]>
Subject: Re: [TinyTrak] Driving GPIO pins
?
I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg
<k7sdw@...> wrote:









On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

Greg,

It appears that you've hijacked the thread "Driving GPIO pins," and created a lot of confusion for those following the thread. Don't know why you'd do that without any mention why. As far as I can tell, the TC2004A-03R "20 character x 4 line LCD Display" that you bought (as did I years ago), other than being an accessory for the TT4, has nothing much to do with the original post in the "Driving GPIO pins" thread as posted by Steven Heimann on April 3. If I'm mistaken, please forgive me. I suppose the pins that the ribbon cable, supplied with the Display/Keyboard interface board, might be a good way to access what the OP Steven H. called "GPIO Pins," although I don't believe I've ever previously heard that usage.

Now to address what you've asked about, there is a manual and a wiring diagram/chart for the display board that totally explains how to use the board, how to wire it up to the kit TT4 or plug it into the built TT4. These documents do a far better job of explaining all this than I could do, although I could probably address some specific issues. It's been years since I bought my KB/Disp adapter board and 20x4 LCD, but at the time I bought the kit, I read the manual and had no problems whatsoever.

Did you also buy the add-on keyboard/display interface board? If I remember correctly, you don't have to buy the board, which might be a good option if you don't intend to use a PS/2 keyboard with your TT4. I'm not sure if new PS/2 keyboards are still for sale, but used ones are probably not difficult to find. I bought one very cheap (<$10) at an ancient electronics/cellphone store called "Radio Shack" ages ago.

Did you download and read the manual? If not, you might want to do so. Here are some links:

About halfway down is the description of the
display interface board (with docs links).

This is the manual that provides info about
the Display/Keyboard interface board AND the
whole setup with the 20x4 LCD board.

A more concise document defining the wiring
with various options, with & without the
DKB adapter board, with the Kit TT4 or the
Built TT4.

Barry
N4MSJ



On 5/18/2021 1:29 PM, Gregory Lane via groups.io wrote:
Bob,
I think I bought a TC2004A-03R board to interface with my TT4.
Have you or anyone in groups.io have the hookup and command settings for this board?
Thanks, Greg
-----Original Message-----
From: Robert Bruninga <bruninga@...>
To: [email protected]
Sent: Sat, Apr 3, 2021 5:54 pm
Subject: Re: [TinyTrak] Driving GPIO pins
You?set up these commands: (they may not be exact since htis is from memory) but similar:
NODISP on
MSGCOMMAND?ON
etc
THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
Bob
On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@... <mailto:vk2bos.lists@...>> wrote:
Evening all
I have a memory that it is possible to drive a gpio pin in a
Tinytrak 4 high or low based on the receipt of an over the air
command in an APRS packet.? I have looked at the manuals and this
mailing list but can't find anything. I am looking to drive a relay
to switch a repeater on and off at a remote mountain site which is
battery powered.? Is my memory more faulty than usual?? Could
someone point me to some doco on this.
Thanks and regards
Steven VK2BOS


 

I am totally confused.??Steven VK2BOS was asking about using GPIO pins using over the air commands.

It appears the thread was hijacked for lcd interfacing?

Steve VK2BOS,
Did you get an answer to your question?

Greg,
You should start a new thread on interfacing "TC2004A-03R board to interface with my TT4".
The information us on Byonics website.
Thus totally different than Steve VK2BOS thread.




On Tue, May 18, 2021 at 17:45, Gregory Lane via groups.io
<k7sdw@...> wrote:
I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg
<k7sdw@...> wrote:









On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

Yes, my apologies to the group! I should have started a new thread but my fat fingers got the best of me!?
Tnx for the feedback.
Greg


On Tue, May 18, 2021 at 6:15 PM, Rob Giuliano via groups.io
<kb8rco@...> wrote:
I am totally confused.??Steven VK2BOS was asking about using GPIO pins using over the air commands.

It appears the thread was hijacked for lcd interfacing?

Steve VK2BOS,
Did you get an answer to your question?

Greg,
You should start a new thread on interfacing "TC2004A-03R board to interface with my TT4".
The information us on Byonics website.
Thus totally different than Steve VK2BOS thread.




On Tue, May 18, 2021 at 17:45, Gregory Lane via groups.io
<k7sdw@...> wrote:
I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg
<k7sdw@...> wrote:









On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
<bruninga@...> wrote:
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>






 

¿ªÔÆÌåÓý

And all these Giant ridiculous images if it hasn't maxed out what the group will allow I bet it surely pushed the group to it's max limit. all those images could have been 10% of the size they are NUTS!

Joe WB9SBD

On 5/18/2021 8:14 PM, Rob Giuliano via groups.io wrote:

I am totally confused.??Steven VK2BOS was asking about using GPIO pins using over the air commands.

It appears the thread was hijacked for lcd interfacing?

Steve VK2BOS,
Did you get an answer to your question?

Greg,
You should start a new thread on interfacing "TC2004A-03R board to interface with my TT4".
The information us on Byonics website.
Thus totally different than Steve VK2BOS thread.




On Tue, May 18, 2021 at 17:45, Gregory Lane via groups.io
I sent you these pics. LCD with some I/O connections I thought to display APRS data?
Greg


On Tue, May 18, 2021 at 2:42 PM, Greg











On Tue, May 18, 2021 at 2:05 PM, Robert Bruninga
I need more info.? What is that board?
thanks
Bob (in chemo fog)

On Tue, May 18, 2021 at 3:11 PM Gregory Lane via groups.io
<k7sdw=[email protected]> wrote:
>
> Bob,
> I think I bought a TC2004A-03R board to interface with my TT4.
> Have you or anyone in groups.io have the hookup and command settings for this board?
>
> Thanks, Greg
> -----Original Message-----
> From: Robert Bruninga <bruninga@...>
> To: [email protected]
> Sent: Sat, Apr 3, 2021 5:54 pm
> Subject: Re: [TinyTrak] Driving GPIO pins
>
> You set up these commands: (they may not be exact since htis is from memory) but similar:
>
> NODISP on
> MSGCOMMAND ON
> etc
>
> THen, over the air, you send a message to the devices callsign "!OUT=$FF" where $FF is the state you want for the port bits
>
> Bob
>
>
> On Sat, Apr 3, 2021 at 1:32 PM Steven Heimann <vk2bos.lists@...> wrote:
>
> Evening all
>
> I have a memory that it is possible to drive a gpio pin in a Tinytrak 4 high or low based on the receipt of an over the air command in an APRS packet.? I have looked at the manuals and this mailing list but can't find anything. I am looking to drive a relay to switch a repeater on and off at a remote mountain site which is battery powered.? Is my memory more faulty than usual?? Could someone point me to some doco on this.
>
> Thanks and regards
> Steven VK2BOS
>
>







 

To Joe, WB9SBD -

You are wrong on all counts. You don't need to be concerned about the Group limits.

Are you on a dial-up service? LOL

I jest.

Thank you,

Joe, Group Owner