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  3. Arduino Nano issue

Arduino Nano issue

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  • gohanG Offline
    gohanG Offline
    gohan
    Mod
    wrote on last edited by
    #2

    It is quite clearly stated in the instructions to use a capacitor on the radio module or even better a voltage regulator from 5 to 3.3v. Try putting a 4.7uF and increase to 100uF until you see things improving.

    1 Reply Last reply
    1
    • Q Offline
      Q Offline
      qqlapraline
      wrote on last edited by qqlapraline
      #3

      I have "clearly" seen the instructions.
      My question though is: why should it be different from one Nano to the other one ?

      But I suppose I should stop asking questions and stick to the manual :)

      More seriously, I am very keen to understand the underlying phenomenons. What is the added current surge needed by the NRF receiving and decoding data the voltage reg (AMS1117) could not cope with ..?

      N 1 Reply Last reply
      0
      • gohanG Offline
        gohanG Offline
        gohan
        Mod
        wrote on last edited by
        #4

        Ask Chinese manufacturers, as usual is all about quality of components used: you probably had the first nano that has a good quality voltage regulator while the other has not. 😀

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        • Q qqlapraline

          I have "clearly" seen the instructions.
          My question though is: why should it be different from one Nano to the other one ?

          But I suppose I should stop asking questions and stick to the manual :)

          More seriously, I am very keen to understand the underlying phenomenons. What is the added current surge needed by the NRF receiving and decoding data the voltage reg (AMS1117) could not cope with ..?

          N Offline
          N Offline
          Nca78
          Hardware Contributor
          wrote on last edited by
          #5

          @qqlapraline said in Arduino Nano issue:

          More seriously, I am very keen to understand the underlying phenomenons. What is the added current surge needed by the NRF receiving and decoding data the voltage reg (AMS1117) could not cope with ..?

          It's low, about 15mA. But that is not the problem, the problem is the noise generated by the voltage regulator that supplies the 3.3V.
          You should buy your nanos from AliExpress, they are 1/3 of what you pay (I'm talking about the cheapest ones) and are exactly the same, just order in advance as the shipment is long. But on a "safety" point of view you won't lose compared to ebay even with sellers in your country, they have a buyer protection system too.

          Q 1 Reply Last reply
          0
          • N Nca78

            @qqlapraline said in Arduino Nano issue:

            More seriously, I am very keen to understand the underlying phenomenons. What is the added current surge needed by the NRF receiving and decoding data the voltage reg (AMS1117) could not cope with ..?

            It's low, about 15mA. But that is not the problem, the problem is the noise generated by the voltage regulator that supplies the 3.3V.
            You should buy your nanos from AliExpress, they are 1/3 of what you pay (I'm talking about the cheapest ones) and are exactly the same, just order in advance as the shipment is long. But on a "safety" point of view you won't lose compared to ebay even with sellers in your country, they have a buyer protection system too.

            Q Offline
            Q Offline
            qqlapraline
            wrote on last edited by
            #6

            @Nca78 Ok, I get it.
            But, considering the price, I will check twice. For the moment, what I see is huge shipping prices ;)

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            • gohanG Offline
              gohanG Offline
              gohan
              Mod
              wrote on last edited by
              #7

              Huge shipping price from aliexpress? They have free shipping

              Q 1 Reply Last reply
              1
              • gohanG gohan

                Huge shipping price from aliexpress? They have free shipping

                Q Offline
                Q Offline
                qqlapraline
                wrote on last edited by qqlapraline
                #8

                @gohan May be I was wrong.
                But I have checked the Nano proposed by the "Build" section of Mysensors (this one), and..well, 13,40 € of shipping to France ;)
                But you may have some other reference ?

                mfalkviddM 2 Replies Last reply
                0
                • Q qqlapraline

                  @gohan May be I was wrong.
                  But I have checked the Nano proposed by the "Build" section of Mysensors (this one), and..well, 13,40 € of shipping to France ;)
                  But you may have some other reference ?

                  mfalkviddM Offline
                  mfalkviddM Offline
                  mfalkvidd
                  Mod
                  wrote on last edited by
                  #9

                  @qqlapraline interesting! I've never seen that high shipping costs, but it seems like France is crazy expensive.

                  1_1497698055722_IMG_1732.PNG 0_1497698055719_IMG_1731.PNG

                  Q 1 Reply Last reply
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                  • Q qqlapraline

                    @gohan May be I was wrong.
                    But I have checked the Nano proposed by the "Build" section of Mysensors (this one), and..well, 13,40 € of shipping to France ;)
                    But you may have some other reference ?

                    mfalkviddM Offline
                    mfalkviddM Offline
                    mfalkvidd
                    Mod
                    wrote on last edited by
                    #10

                    @qqlapraline try this, looks like free shipping to France:
                    https://www.aliexpress.com/item/MINI-USB-ATmega328-CH340G-5V-16MHz-No-welding-Arduino-Compatible-Nano-V3-0-Board/32567320604.html

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                    1
                    • mfalkviddM mfalkvidd

                      @qqlapraline interesting! I've never seen that high shipping costs, but it seems like France is crazy expensive.

                      1_1497698055722_IMG_1732.PNG 0_1497698055719_IMG_1731.PNG

                      Q Offline
                      Q Offline
                      qqlapraline
                      wrote on last edited by
                      #11

                      @mfalkvidd Yep. It's the same for some other European countries (like Netherlands) but not for others..weird

                      @mfalkvidd For the other Nano using CH340, it really looks like the non-working ones I bought on Ebay.

                      But thanks anyway.

                      mfalkviddM 1 Reply Last reply
                      1
                      • Q qqlapraline

                        @mfalkvidd Yep. It's the same for some other European countries (like Netherlands) but not for others..weird

                        @mfalkvidd For the other Nano using CH340, it really looks like the non-working ones I bought on Ebay.

                        But thanks anyway.

                        mfalkviddM Offline
                        mfalkviddM Offline
                        mfalkvidd
                        Mod
                        wrote on last edited by mfalkvidd
                        #12

                        @qqlapraline how about this?
                        https://www.aliexpress.com/item/Nano-V3-0-Mini-USB-ATmega328-5V-16M-Micro-controller-board-for-Arduino-compatible/32647462543.html

                        0_1497729906425_upload-04de4845-ecde-4442-a1fe-9935a7820770

                        Q 1 Reply Last reply
                        1
                        • mfalkviddM mfalkvidd

                          @qqlapraline how about this?
                          https://www.aliexpress.com/item/Nano-V3-0-Mini-USB-ATmega328-5V-16M-Micro-controller-board-for-Arduino-compatible/32647462543.html

                          0_1497729906425_upload-04de4845-ecde-4442-a1fe-9935a7820770

                          Q Offline
                          Q Offline
                          qqlapraline
                          wrote on last edited by
                          #13

                          @mfalkvidd, nice pickup ! Thanks !

                          1 Reply Last reply
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