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  3. FTDI <=> Arduino Pro Mini

FTDI <=> Arduino Pro Mini

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  • hekH Offline
    hekH Offline
    hek
    Admin
    wrote on last edited by
    #9

    Ok,

    Well... if anyone experience this from one of the recommended sellers let me know.

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    • greglG Offline
      greglG Offline
      gregl
      Hero Member
      wrote on last edited by
      #10

      No luck - i am able to upload the Optiboot bootloader to them no problem,
      but i cannot program ( upload a sketch) with any of my ftdi programmers.

      I found this thread, same issue but with 3.3v - i had a quick attempt but i dont think its much different to what i was doing uploading (successfully) the optiboot bootloader.

      Spent enough time on this junk....ill just stick to using Nano's...

      Good luck!

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      • bjornhallbergB Offline
        bjornhallbergB Offline
        bjornhallberg
        Hero Member
        wrote on last edited by bjornhallberg
        #11

        Thanks for the warning. All the Pro Minis I've bought from Ebay / Ali have been the standard clone version thankfully and they have all worked out of the box, at least the way I've wired them. I did start out with the useless Silicon Labs CP2102 programmer because I didn't do my homework (the one where you have to solder a super-small wire from the chip or hold down the reset button manually). Not saying this would work here, there seems to indeed be something wonky with the Funduinos:
        Sparkfun: Arduino Pro Mini 3.3v and FTDI 3.3v upload errors

        For reference (the exact same APM board most of us have as well):
        https://www.youtube.com/watch?v=Vawhrr4COjI
        (or: don't do what I did - avoid non-ftdi programmers)

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        • jocke4uJ Offline
          jocke4uJ Offline
          jocke4u
          wrote on last edited by
          #12

          @bjornhallberg
          Thanks for the info/video, I will do another try before they go the same route as for @gregl ....trash bin :-1:

          @hek I also have bought these from another Aliexpress supplier

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          • jocke4uJ Offline
            jocke4uJ Offline
            jocke4u
            wrote on last edited by
            #13

            I did the FTDI loop back test and so far I see the programmer doesn't work so ordered the one referenced on MySensors

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            • bjornhallbergB Offline
              bjornhallbergB Offline
              bjornhallberg
              Hero Member
              wrote on last edited by
              #14

              Seems you have the same programmer as I have though. But I guess you could have gotten a faulty one.
              IMG_20140925_095933.jpg
              In retrospect I should have gotten one with a 3.3V/5V jumper instead of solder pads. Not that I need 5V.

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              • jocke4uJ Offline
                jocke4uJ Offline
                jocke4u
                wrote on last edited by
                #15

                FYI
                I today received the new FTDI programmer referenced on this site (http://www.ebay.com/itm/320907184616) and now it works to program Pro Mini's :)

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                • daulagariD Offline
                  daulagariD Offline
                  daulagari
                  Hero Member
                  wrote on last edited by
                  #16

                  @jocke4u Looking at the first picture of this thread it looks to me like you did not make a selection between 3.3 V and 5 V on your FTDI adapter.

                  You need to connect either the 3.3 V pad with the middle pad or the 5V pad with the middle pad.

                  hekH 1 Reply Last reply
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                  • daulagariD daulagari

                    @jocke4u Looking at the first picture of this thread it looks to me like you did not make a selection between 3.3 V and 5 V on your FTDI adapter.

                    You need to connect either the 3.3 V pad with the middle pad or the 5V pad with the middle pad.

                    hekH Offline
                    hekH Offline
                    hek
                    Admin
                    wrote on last edited by
                    #17

                    @daulagari

                    Yep you're probably right. Nice spotted!

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                    • greglG Offline
                      greglG Offline
                      gregl
                      Hero Member
                      wrote on last edited by
                      #18

                      i think on mine the solder pads are bridged... but i will check.

                      jocke4uJ 1 Reply Last reply
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                      • greglG gregl

                        i think on mine the solder pads are bridged... but i will check.

                        jocke4uJ Offline
                        jocke4uJ Offline
                        jocke4u
                        wrote on last edited by jocke4u
                        #19

                        @gregl said:

                        i think on mine the solder pads are bridged... but i will check.

                        I am pretty sure it's the same (5V as default) for me but will double check.

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