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By Pablo2048
#75947 Well, FTDI is USB to UART converter. It converts USB _protocol_ to UART @ 3V3 levels. There is no help with another USB _DEVICE_ (why I do need to say this twice :-( ). If you want to avoid modification, then you have to use some kind of USB Host - for example https://www.ebay.com/itm/Mini-USB-Host- ... SwZQxW4W~U , but you also need IMHO a lot of software to get this thing to work with FTDI ( http://forum.arduino.cc/index.php?topic=85991.0 ) .
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By PerH
#75948 If its any comfort, my learning curve regarding USB drastically increased from your input, so, thankyou! :)
For some reason i thought FTDI was free of the device/host issue, as a simple signal converter..
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By QuickFix
#75949
PerH wrote:as a simple signal converter..

(Un)fortunately no: it's merely a protocol converter.

I'm not familiar with RFXTrx433e (or Domoticz in general), but if there's some open source community, you might be able to connect a cheap 433MHz module (nRF905 perhaps?)to your ESP and create a bridge (for a fraction of the cost) that way. :idea:

(Please note the emphasized underlined words "If", "Might" and "Perhaps")