Is your USB to TTL cable not working with the current driver? FTDI had a buggy Chip that may affect Window 7 and 8 Operating systems.
Product: 16882 This product is the 3.3 Volt Version
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See also TTL-232R-AJ
If for any reason there is no Voltage label on the cable, then the above pictures show you how to identify them. The plastic inside the connector housing will be black for 3.3 Volts, and white for 5 Volts.
The TTL-232R-3V3-AJ ("audio jack") is a USB to Serial (TTL level) converter cable which allows for a simple way to connect TTL serial interface devices to USB. This version of FTDI's USB to TTL serial adapter cable uses a 3.5mm audio jack on the serial interface and has it's I/O pins configured to operate at 3.3V levels.
The TTL-232R-3V3-AJ uses a FT232RQ device which is housed inside the USB 'A' connector, and is terminated at the end of a 1.8 m (70") cable with a 3.5 mm audio jack which provides access to transmit (Tx), receive (Rx), and GND signals.
The TTL-232R-3V3-AJ is fully RoHS compliant and is supplied loose packed in an anti-static bag. It is FCC and CE approved.
NOTE Windows 7 and 8 Users:
If you simply plug in the FTDI device, you should find that the drivers will auto-install.
You will find the drivers for all other systems at: http://www.ftdichip.com/Drivers/VCP.htm This includes Windows 8, and all other Windows Versions, Linux, Mac OS X, Windows CE. See the above URL address for full version information.
1) Do you need additional support on this product?
2) You can't find the information you need in the documentation?
3) You have upgraded your operating system, and the current software doesn't cover it?
4) You need the driver software?
5) You need a list of the Operating Systems this product will operate with? (Covers virtually everything).
6) Any questions not covered in the above list?
Then please click here.
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This product is the 3.3 Volt Version