new project (Alphanumerical led screen)

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.


The playground has several examples of keyboards/pads you can connect, including the PS2.

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.


If you want the real feel of a late 70's homebrew you should use a black and white TV for output. :)

Hey thanks guys :slight_smile:

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.

_ _
_ _ <— like the ones that old Casio calculators use.