Re: Electronics Projects and PC Interfacing

[Herbie <technowombat@yahoo.com>]

Way, way back in the day I was using a Darlington Transistor Array to 
buffer/amplify the signals on a parallel I/O on the old BBC Micro they 
used in schools in the UK, part of a class project I was assisting in.

My other thought is to look at the Linux Car MP3 player. CAJUN.

http://cajun.sourceforge.net/

as it has LCD drivers as part of it's code, but it's using a serial 
driveable LCD not just some random calculator display, but it may help.

h.

On Fri, 18 Dec 2009, Matthew Kotys wrote:

> Does anybody here have experience with electronics design, and interfacing
> USB / Serial / Parallel ports on Linux hosts?  My intent is to mess around
> with controlling DC/stepper motors, temperature sensors, maybe a USB <--> IR
> adapter for TV remotes.  I have done a few "Hello World" projects on PIC
> uCs, but I'm sort of bored with blinking lights in succession and triggering
> a piezo buzzer.  I have a basic understanding of DC circuits, but I'm not so
> good at peripherals and drivers.  I use C, Perl, Python, PHP, bash scripting
> all the time...
>
> Maybe I would start like this:
>
> project 1: build a USB morse code receiver, translating to text as it takes
> in user input
> The translation software for this would be interesting to write
>
> project 2: build a USB morse code* transceiver*, allowing for tty sessions
> entirely in morse - (funny)
>
> project 3: rip out an LCD from an old calculator, connect it to a keyboard
> and a breadboard, and run a serial (or USB) cable across the room from my
> PC.  So, an actual (and really dumb) tty
>
> Any pushes in the right direction are welcome, since googling tends to make
> the hours pass way too quickly.
>
> -- 
> Matt Kotys
>

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