Subject: From: Date:

Re: [ECS] Keypad Interfaces Kent Noonan Sat, 5 Feb 2000 12:18:08 -0600

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Yea I have them attached serially.. Each to it's own individual port. 
I have a serial-byte item defined and can send and receive from the 
lcd's. I guess I just don't understand how to process what I recieve 
from them to make ECS do something. I didn't know if I needed to 
figure out the keypad-session or just interface them through the 
serial-byte item only.. I don't know if it is possible to do it or what 
(dis)advantages come from using keypad-session or not using it. If 
I do use it, how do I make "TTS not found" go away?? (other than 
defining TTS) I guess I just need to hack away at it a while longer 
and mayber it will "click" some time soon.. 

On 5 Feb 00, at 12:15, joerut@epix.net wrote:

> Kent 
> 
> How are they interfaced with ECS?? Serial Port??
> 
> I had built some displays with keypads years ago. I also built a device
> that would interface many (as many as you would like) of these displays
> into ONE serial port. The keypad would send ECS macro values. I would
> use the serial byte item to receive these values then set a macro
> accordingly. I would also use the serial byte item to send messages to
> the display. The top line of the display ALWAYS showed the current date
> and time.(From ECS) the other 3 lines scrolled reminder type messages.
> By using the serial byte item this can get a bit programming intense but
> it actually works very well. The only downfall about the interface that
> combines ALL the displays into ONE serial port is that only ONE keypad
> can be active at a time and ALL of the displays will show the SAME data.
> 
> Later
> Joe Rut
> 

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