<p>Yeah, that sounds like what Tom was talking about. Thanks!</p>
<p>JSR/</p>
<div class="gmail_quote">On Jul 7, 2012 11:27 PM, "Rob Roschewsk" <<a href="mailto:rob@pabut.org">rob@pabut.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Just thought of something ... I know I said it shouldn't be a problem<br>
..... BUT .... real RS232 is usually +/- 15V .... but could be<br>
anywhere from >3 to 15 .... +/- 5 or +/-12 could be used ... for<br>
BoArduino you need TTL levels .... I've used RS232 to ttl converter<br>
chips in the past (way past I bought them in Radio Shack of all<br>
places) Nowadays I think the MAX232 is in vogue .... $0.56 at digikey<br>
... you'll need a few depending on how many signals you need to<br>
convert <a href="http://www.ti.com/lit/ds/symlink/max232.pdf" target="_blank">http://www.ti.com/lit/ds/symlink/max232.pdf</a> /<br>
<a href="http://www.digikey.com/product-detail/en/MAX232IN/296-6940-5-ND/371562" target="_blank">http://www.digikey.com/product-detail/en/MAX232IN/296-6940-5-ND/371562</a><br>
<br>
<br>
<br>
<br>
On Sat, Jul 7, 2012 at 2:10 PM, Josiah Ritchie <<a href="mailto:josiah@josiahritchie.com">josiah@josiahritchie.com</a>> wrote:<br>
> I have a Keyspan USA-19HS USB to serial adapter which uses a TI<br>
> tusb3410[/url] inside. They refer to this as an "(ACTIVE) RS232/IrDA<br>
> Serial-to-USB Converter".<br>
><br>
> I'd like to use it to program the BoArduino. I've poked around and the<br>
> schematics I've seen indicate that all the pins I need in the 6-pin<br>
> ttl connector are on the Serial connector in the keyspan usb-to-serial<br>
> adapter.<br>
><br>
> Could I just solder up an adapter or would I need to do more than just<br>
> that? Tom told me it wasn't quite that easy on Thurs, but I forget<br>
> what he said needed to be done. Of course, at that time I was assuming<br>
> my USB-Serial adapter had an FTDI chip in it. What do I need to<br>
> research to make this happen?<br>
><br>
> Keyspan converter -<br>
> <a href="http://www.tripplite.com/en/products/model.cfm?txtSeriesID=849&txtModelID=3914" target="_blank">http://www.tripplite.com/en/products/model.cfm?txtSeriesID=849&txtModelID=3914</a><br>
> TI tusb3410 - <a href="http://www.ti.com/product/tusb3410" target="_blank">http://www.ti.com/product/tusb3410</a><br>
><br>
> Thanks,<br>
> JSR/<br>
><br>
> --<br>
><br>
> <a href="http://about.me/josiah" target="_blank">http://about.me/josiah</a><br>
><br>
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</blockquote></div>