+/- 12v serout?

Ian Macoomb

Has anybody had luck converting the 0-5 volt serial output to +/- 12 volts?·

I was hoping that the hardware that I was programming my Stamp for would accept the 0-5v output but it doesn't.· Looks like I'm going to have to build a circuit to convert the output.· But I figured I get some input from the forum before I proceed.

allanlane5

See the following site:

http://www.kronosrobotics.com/xcart/product.php?productid=16167&cat=287&page=2

You can mount the result off your board, or to the side of your cabinet.
This has the MAX232 chip and capacitors needed to change TTL 0..5 to +10..-10 RS232 levels.

Ian Macoomb

Wow, that's awesome.

Thanks for the quick reply. Only 4 minutes after I posted. I love this forum.

sylvie369

Sorry I'm late with this, but here's another source. I've used these:

http://www.awce.com/rs1.htm

Chris Savage

Hello,

There are also some RS-232 schematics for our hardware listed right in the Completed Projects Forum. I hope this helps. Take care.

http://forums.parallax.com/showthread.php?p=640507

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Chris Savage
Parallax Tech Support