rs232 to vga converter

Jan 22, 2008 2 Replies

comp.arch.embedded rs232 to vga converter



Due in large part to messages here and rec.crafts.metalworking about searches for various type of crt controllers I've built one & placed it on the market. It generates large letters in 8 line/20 characters per line and 6 line/12 characters per line formats. A 9 pin d-sub connector for rs-232 input and a 15 pin hd dsub connector for output to a vga monitor are enclosed by a small plastic housing. At one side is a connector for a "wall mount" style transformer which is included. If anyone is interested,

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has a photo and more information.



Hul


comp.arch.embedded rs232 to vga converter

The fonts were chosen to reduce storage space which is a bit rough on the eye. As Grant mentioned, the 'R' is ugly. The 'K' is about the same, maybe a little worse. This and the lack of lower case letters make reading a novel on the rs-big-print painful. But, if reading a thermal monitor in a casting process or the digital readouts on a machine tool or the output of a weather monitor from

10, 20 or 30 feet, the rs-big-print starts to shine. The 6 line/12 characters look big, even on an old 13 in. monitor and at 20 & 30 feet they are comfortable to read. All in a 2.5 x 1.75 x .8 in. box. It still pays to avoid the r's & k's though.

Hul

->> Clever, but your fonts (which appear to use a 5x7 grid) need some work.

->> What's wrong with a typical LCD 5x7 font?

->

-> Funny, I was thinking the exact same thing!

-

-That was my first reaction: the fonts are brutal to look at.

-The upper case R is particularly painful.

-

-Grant Edwards

comp.arch.embedded rs232 to vga converter

Some of the displays showing rs-big-print messages were changed to full size to make the purpose more visable. If you get a chance to look, it's at

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Hul

- Due in large part to messages here and rec.crafts.metalworking about

-searches for various type of crt controllers I've built one & placed it on

-the market. It generates large letters in 8 line/20 characters per line

-and 6 line/12 characters per line formats.

- A 9 pin d-sub connector for rs-232 input and a 15 pin hd dsub

-connector for output to a vga monitor are enclosed by a small plastic

-housing. At one side is a connector for a "wall mount" style transformer

-which is included.

- If anyone is interested,

formatting link
has a photo and more

-information.

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