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Hey there,

i've just got a little question about UART to USB converters.
I would like to read out a GPS receiver from "u-blox". The receiver has got a USB cable to communicate with.
It also gets its voltage supply via the USB cable. Reading the receiver via a Laptop is not an issue at all but now i need to read the data via
the arduino.

This is a converter I'am thinking about to buy:
http://www.ebay.de/itm/USB-2-0-to-TTL-UART-6PIN-Module-Serial-Converter-CP2102-STC-PRGMR-Dupond-cable-/251159448719?pt=Elektromechanische_Bauelemente&hash=item3a7a450c8f

My question is:

Does it matter from which side (USB or UART) the supply voltage is going on to a converter?
I'll have to supply the voltage from the arduino so that the GPS receiver gets its voltage via the USB side.

I hope you guys are able to understand my question because my english used to be better =)
Thanks for replies!

GeoSurveyor
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Gosport, UK
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Your GPS is a USB client device. A UART/USB adaptor is also a USB client device. Client devices can't be connected together. You'll need a USB host shield on your Arduino.
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Hey there,

thanks for the quick response.
Do you have any good tutorials for setting up a usb connection via the USB Host Shield?
I just need to receive the bytes from the GPS reveiver and foward it to the Bluetooth module via the Arduino.
That shouldn't get me any issues right?

GeoSurveyor
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It would depend on the type of device that your GPS presented itself as. Circuits@Home support some GPS devices on their host shield - http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino/.
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