Comments on: Simple TTL to RS232 adapter http://www.scienceprog.com/simple-ttl-to-rs232-adapter/ ScienceProg serves scientific, embedded, biomedical engineering, physics based contents. If you want your article or scientific project to be on this site, do not hesitate to contact. Tue, 07 Feb 2012 20:33:17 +0200 hourly 1 http://wordpress.org/?v=3.3.1 By: Parv http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-542 Parv Mon, 17 Mar 2008 20:18:20 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-542 There are professional PCBs/kits and ready built versions around these days: See: http://www.tronisoft.com/cat_rs232ioboard.php See: http://www.tronisoft.com/rs232info/RS232_To_TTL_Converter.pdf and for terminal program: http://www.tronisoft.com/DACIO_RS232_Terminal.zip Parv There are professional PCBs/kits and ready built versions around these days:

See:
http://www.tronisoft.com/cat_rs232ioboard.php

See:

http://www.tronisoft.com/rs232info/RS232_To_TTL_Converter.pdf

and for terminal program:

http://www.tronisoft.com/DACIO_RS232_Terminal.zip

Parv

]]> By: mrmeval http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-541 mrmeval Sat, 15 Mar 2008 09:27:31 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-541 Word press is S*T consider a laxative. Why buy a 5 - 11 dollar part you're not using all the features of when you can use a couple transistors and some discrete parts? http://www.arduino.cc/en/Main/ArduinoBoardSerial If you need RS232 levels for some reason you can find a blizzard of cheaper alternatives. I've used the ADM202, 75c1406 which are under a buck at some suppliers depending on qty. Another way of getting those levels is a 99 cent wall wart. I've done that to and it works for extended runs. Word press is S*T consider a laxative.

Why buy a 5 – 11 dollar part you’re not using all the features of when you can use a couple transistors and some discrete parts?

http://www.arduino.cc/en/Main/ArduinoBoardSerial

If you need RS232 levels for some reason you can find a blizzard of cheaper alternatives. I’ve used the ADM202, 75c1406 which are under a buck at some suppliers depending on qty.

Another way of getting those levels is a 99 cent wall wart. I’ve done that to and it works for extended runs.

]]> By: bong http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-540 bong Sat, 15 Mar 2008 02:21:10 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-540 wow, a copy of what can be found in every max232 datasheet, great work wow, a copy of what can be found in every max232 datasheet, great work

]]> By: Mark http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-539 Mark Thu, 13 Mar 2008 15:52:15 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-539 We used to make these ourselves, but you can buy these ready made for $40, and the commercial units are self-powered (you don't need Vcc). Google for 232LPTTL. -Mark We used to make these ourselves, but you can buy these ready made for $40, and the commercial units are self-powered (you don’t need Vcc). Google for 232LPTTL.

-Mark

]]> By: Electronics-Lab.com Blog » Blog Archive » Simple TTL to RS232 adapter http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-538 Electronics-Lab.com Blog » Blog Archive » Simple TTL to RS232 adapter Thu, 13 Mar 2008 07:47:25 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-538 [...] Simple TTL to RS232 adapter - [Link] [...] [...] Simple TTL to RS232 adapter - [Link] [...]

]]> By: Electronics-Lab.com Blog » Blog Archive » Simple TTL to RS232 adapter http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-537 Electronics-Lab.com Blog » Blog Archive » Simple TTL to RS232 adapter Wed, 12 Sep 2007 21:34:36 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-537 [...] TTL to RS232 adapter - [Link] Filed in [...] [...] TTL to RS232 adapter – [Link] Filed in [...]

]]> By: Electronics-Lab.com Blog » Blog Archive » Build your own RS232 adapter with LED indicators http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-536 Electronics-Lab.com Blog » Blog Archive » Build your own RS232 adapter with LED indicators Wed, 12 Sep 2007 21:28:12 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-536 [...] I have made simple RS232 adapter I have decided to improve it a little bit and added status LEDs of TXD and RXD lines. This adapter [...] [...] I have made simple RS232 adapter I have decided to improve it a little bit and added status LEDs of TXD and RXD lines. This adapter [...]

]]> By: scienceprog http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-535 scienceprog Fri, 20 Oct 2006 21:11:31 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-535 Its good idea. I didn't think about this. It won't be hard to add these LEDs to existing board. Thanks. Its good idea. I didn’t think about this. It won’t be hard to add these LEDs to existing board. Thanks.

]]> By: Anonymous http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-534 Anonymous Fri, 20 Oct 2006 13:58:15 +0000 http://www.scienceprog.com/simple-ttl-to-rs232-adapter/#comment-534 Adding 2 little LED diodes to TX/RX lines helps much. You can use such converter as RS232 line tester - LED flash for transmission. Adding 2 little LED diodes to TX/RX lines helps much. You can use such converter as RS232 line tester – LED flash for transmission.

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