[USB- serial adapter] Cannot upload to Pro Mini clone

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Joined:Tue May 16, 2017 3:28 pm
[USB- serial adapter] Cannot upload to Pro Mini clone

Post by Jepean » Tue May 16, 2017 3:46 pm


I am trying to upload a sketch to a Pro Mini clone from ebay using the Freetronics USB to serial adapter and the Arduino IDE, but I can not get it to work. The sketch compiles and it says "Uploading" but there is no is no activity on the rx/tx leds and after a while I get the error "Programmer is not responding". I have Connecting the adapter to the Pro Mini's ftdi header pins and I have tried using wire vout/gnd/rx/tx -> vcc/gnd/rx/tx. I have also tried rx/tx -> tx/rx, but the result is the same.

Using a "naked" UNO (removed the micro controller) as a Usb-serial adapter works fine.

Any ideas to what I have to do to be able to use the adapter?

Jens P.

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