Arduino Forum

Using Arduino => LEDs and Multiplexing => Topic started by: espgra on May 30, 2011, 09:37 pm

Title: new project (Alphanumerical led screen)
Post by: espgra on May 30, 2011, 09:37 pm
Im thinking about ordering alphaNum character screens in bulk from China.
Does anyone have any recs.?
I see this as a tempting offer since its often half the price (ThanJameco).

I thought a pair of 595's per Char. Is sufficent (Them i order from Jameco, not that expencive.)

Why not lcd screens you ask?
Well i want to make a late 70's style homebrew pc using either pic\atmel.
Btw does anyone have any idea how to interface a keyboard with a mcu?

Kind regards.

espgra
Title: Re: new project (Alphanumerical led screen)
Post by: Simpson_Jr on May 30, 2011, 10:42 pm
The playground has several examples of keyboards/pads you can connect, including the PS2.
http://arduino.cc/playground/Main/InterfacingWithHardware#keyb (http://arduino.cc/playground/Main/InterfacingWithHardware#keyb)
Title: Re: new project (Alphanumerical led screen)
Post by: Onions on May 30, 2011, 10:53 pm
I would also use the PS2 keyboard. Althought I have never tried any of the ps2 libraries, I do want to. They apppear to make using the controller / keyboard very simple.

Onions.
Title: Re: new project (Alphanumerical led screen)
Post by: johnwasser on May 30, 2011, 11:10 pm
If you want the real feel of a late 70's homebrew you should use a black and white TV for output. :)
Title: Re: new project (Alphanumerical led screen)
Post by: espgra on May 31, 2011, 04:20 pm
Hey thanks guys :)

i have considered black and white, but i have a vision of this project i dont want to change (At least not the basics)

But alphanum. Chars is expencive At lest 2.5 dollars per double.

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