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Arduino pro mini issues

funinalaska

OK, I have been using Arduino Uno, Mega and micro for a while now.

All have USB on the board.

I had ordered some Pro Mini boards a while ago and am just now finally getting to fool around with them.

I got a FTDI232 board to program them with but I am having no luck.

I have followed along with many tutorials online that use these boards with this adapter.

I always get:

avrdude: stk500_getsync(): not in sync: resp=0x00

I have tried a couple different Pro Minis thinking maybe one I had was bad.

I also did do the test with putting a jumper over RX and TX and seeing if I get mirroring in Serial monitor and I do.

I have checked the settings in the com port on my system settings and it seems to be set as the tutorial say.

Anyone have any thoughts what could be my issue?

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  • 0

    OK, I have tried a bunch of things.

    I have tried checking all the connections.

    I have tried holding the reset button till the sketch is finished uploading.

    The only things I have not tried are adding the cap and resistor on the reset pin.

     

    I did do one more thing to troubleshoot.

    I hooked it up to my Uno.

    I only hooked up:

    TX->RX

    RX->TX

    5V->5V

    GND->GND

    It worked,

    I was able to upload a sketch to my Uno by pressing the reset button as soon as it said uploading.

     

    This tells me my FTDI works just fine...

    This is telling me either I got Pro Minis without bootloader or I have a batch of bad boards.

    I am hoping not the latter.

     

    I am inserting images of my Pro Mini and my FTDI (sorry they are crappy they were taken with my phone and it sucks at Macro)

     

    How do I tell if the Pro Minis have the bootloader burned on them?

    How do I burn it if they do not?

     

     

    image

    The FTDI labels are difficult to see so in the orientation in the pic from to to bottom

    DTR

    RX

    TX

    VCC

    CTS

    GND

    image

    and yes, my Pro Mini is only printed on the back, which is really annoying once you have headers soldered on to it.

    image

  • 0 in reply to funinalaska

    Andrew

    I think you'll find the answer is here.

    http://forum.arduino.cc/index.php?topic=217246.0

     

    It also tells how to resolve it.

     

    Mark

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