I'm looking for USB to serial FTDI cables. However, the cheapest I can find is $20 US each, which is way too expensive, given my price target for the entire product is $70. I'm hoping they can be found for $5 each somewhere, but even FTDI themselves has them for £16 (about $25) each. Anyone know of any other options?
Electronic – Low cost FTDI cables
ftdirs232usb
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Best Answer
Nokia data cables are USB to serial.
http://hackaday.com/2010/02/25/nokia-usb-cable-is-usb-to-serial-in-disguise/
You might also want to look at non-FTDI serial to USB chips, like the Prolific 2303 (PL2303) which is in this Nokia cable.