[arm-allstar] Adding a simple USB LCD display to the BBB, RPi2/3 (or any computer)

[Doug Crompton]

Vendel,

   I did that many years ago and I thought I had put some code examples in
the article. It is not terribly hard to do but I would have to bring up
some old hardware to find the code I originally used to do it.

When you plug in the display it assumes a ttyUSBx port that you simply
write to in bash. The display accepts ascii text and has a few special
characters for control. All this is described in the Adafruit overview.

https://learn.adafruit.com/usb-plus-serial-backpack/

You need to know a little scripting language to do this. It depends what
you want to display.

To send data to the display you would write it out the port -

echo -ne "This is a test" > /dev/ttyUSB0

If you need more help let me know. I will have to dig out the display again
and maybe  get re-interested!.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*

On Mon, Dec 10, 2018 at 10:54 PM "Vendel via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Hi, I just read an interesting article written by WA3DSP about adding an
> USB LCD display to the RPi2/3. It can be set up to display node number,
> call and location. Could someone tell me how to do this in the Hamvoip
> distribution. I like this setup because it doesn’t use any of the header
> pins on the Pi. I’m currently using some of those for my RTC. Thanks as
> always, Vendel/ K2DSI.
>
> Sent from Mail for Windows 10
>
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