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💬 Unnamed project

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  • O Offline
    O Offline
    openhardware.io
    wrote on last edited by openhardware.io
    #1

    https://www.openhardware.io/view/569/Unnamed-project

    1 Reply Last reply
    0
    • N Offline
      N Offline
      NeverDie
      Hero Member
      wrote on last edited by
      #2

      Have you found an inexpensive source for the Atmega 328p-mu? So far, the cheapest I've found is:
      https://www.ebay.com/itm/10pcs-ATMEGA328P-MU-MEGA328P-MU-QFN-32/292431653458?hash=item441648ea52:g:D2QAAOSwmuVacfep

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      • berkseoB Offline
        berkseoB Offline
        berkseo
        wrote on last edited by
        #3

        https://ru.aliexpress.com/item/5PCS-LOT-ATMEGA328P-MU-MEGA328P-MU-ATMEGA328-328P-MU-QFN/32847386871.html?spm=a2g0v.search0104.3.9.756b5f4elTBBr1&ws_ab_test=searchweb0_0,searchweb201602_4_10152_10065_10151_10344_10068_5722815_10342_10343_10340_5722915_10341_10543_10698_10697_5722615_10696_10084_10083_10618_10307_10301_5722715_5711215_10059_10534_10212_308_100031_10103_441_10624_10623_10622_5711315_5722515_10621_10620_10125,searchweb201603_28,ppcSwitch_4&algo_expid=b086873b-793f-4c33-be6d-bc159136d1e8-1&algo_pvid=b086873b-793f-4c33-be6d-bc159136d1e8&transAbTest=ae803_1&priceBeautifyAB=0

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        • berkseoB Offline
          berkseoB Offline
          berkseo
          wrote on last edited by
          #4

          not expensive 328Ñ€-au. And sometimes size is very important

          N 1 Reply Last reply
          0
          • berkseoB berkseo

            not expensive 328Ñ€-au. And sometimes size is very important

            N Offline
            N Offline
            NeverDie
            Hero Member
            wrote on last edited by
            #5

            @berkseo Thanks! I just ordered it to test how easy/hard it is to solder. If I can manage that, then I may switch over to it.

            N 1 Reply Last reply
            0
            • N NeverDie

              @berkseo Thanks! I just ordered it to test how easy/hard it is to solder. If I can manage that, then I may switch over to it.

              N Offline
              N Offline
              Nca78
              Hardware Contributor
              wrote on last edited by
              #6

              @neverdie said in 💬 MyS Duino:

              @berkseo Thanks! I just ordered it to test how easy/hard it is to solder. If I can manage that, then I may switch over to it.

              0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

              berkseoB 1 Reply Last reply
              1
              • berkseoB Offline
                berkseoB Offline
                berkseo
                wrote on last edited by berkseo
                #7

                It is not difficult. A solder paste and a solder dryer will help you. The chip is fixed on the board with a clip, so that it does not blow away. I soldered the chip for a self-made board. It was hard to do the tracks. On a good industrial board, it will simply be a pleasure to solder. :)

                1 Reply Last reply
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                • N Nca78

                  @neverdie said in 💬 MyS Duino:

                  @berkseo Thanks! I just ordered it to test how easy/hard it is to solder. If I can manage that, then I may switch over to it.

                  0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

                  berkseoB Offline
                  berkseoB Offline
                  berkseo
                  wrote on last edited by berkseo
                  #8

                  @nca78 said in 💬 MyS Duino:

                  0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

                  soldering paste and soldering dryer :) It's very simple :)

                  https://ru.aliexpress.com/item/Free-shipping-2013-New-2PCS-Lot-100-Hong-Kong-MECHANIC-BGA-Solder-Flux-Paste-Soldering-Tin/922291342.html?spm=a2g0v.search0204.3.23.2cb57150vey63U&s=p&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&transAbTest=ae803_2&priceBeautifyAB=0

                  https://ru.aliexpress.com/item/110-240-AC/32844571674.html?spm=a2g0v.search0204.3.59.649e519fCHRWZY&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&algo_expid=0152a640-c1c2-47b6-b06f-7b03feadea51-8&algo_pvid=0152a640-c1c2-47b6-b06f-7b03feadea51&transAbTest=ae803_2&priceBeautifyAB=0

                  berkseoB N 2 Replies Last reply
                  0
                  • berkseoB berkseo

                    @nca78 said in 💬 MyS Duino:

                    0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

                    soldering paste and soldering dryer :) It's very simple :)

                    https://ru.aliexpress.com/item/Free-shipping-2013-New-2PCS-Lot-100-Hong-Kong-MECHANIC-BGA-Solder-Flux-Paste-Soldering-Tin/922291342.html?spm=a2g0v.search0204.3.23.2cb57150vey63U&s=p&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&transAbTest=ae803_2&priceBeautifyAB=0

                    https://ru.aliexpress.com/item/110-240-AC/32844571674.html?spm=a2g0v.search0204.3.59.649e519fCHRWZY&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&algo_expid=0152a640-c1c2-47b6-b06f-7b03feadea51-8&algo_pvid=0152a640-c1c2-47b6-b06f-7b03feadea51&transAbTest=ae803_2&priceBeautifyAB=0

                    berkseoB Offline
                    berkseoB Offline
                    berkseo
                    wrote on last edited by
                    #9

                    @berkseo A small piece of paste under the chip solves the problem of soldering 33 contacts, under the chip it is only one and very large)))

                    1 Reply Last reply
                    0
                    • berkseoB berkseo

                      @nca78 said in 💬 MyS Duino:

                      0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

                      soldering paste and soldering dryer :) It's very simple :)

                      https://ru.aliexpress.com/item/Free-shipping-2013-New-2PCS-Lot-100-Hong-Kong-MECHANIC-BGA-Solder-Flux-Paste-Soldering-Tin/922291342.html?spm=a2g0v.search0204.3.23.2cb57150vey63U&s=p&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&transAbTest=ae803_2&priceBeautifyAB=0

                      https://ru.aliexpress.com/item/110-240-AC/32844571674.html?spm=a2g0v.search0204.3.59.649e519fCHRWZY&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&algo_expid=0152a640-c1c2-47b6-b06f-7b03feadea51-8&algo_pvid=0152a640-c1c2-47b6-b06f-7b03feadea51&transAbTest=ae803_2&priceBeautifyAB=0

                      N Offline
                      N Offline
                      NeverDie
                      Hero Member
                      wrote on last edited by
                      #10

                      @berkseo said in 💬 MyS Duino:

                      @nca78 said in 💬 MyS Duino:

                      0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

                      soldering paste and soldering dryer :) It's very simple :)

                      https://ru.aliexpress.com/item/Free-shipping-2013-New-2PCS-Lot-100-Hong-Kong-MECHANIC-BGA-Solder-Flux-Paste-Soldering-Tin/922291342.html?spm=a2g0v.search0204.3.23.2cb57150vey63U&s=p&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&transAbTest=ae803_2&priceBeautifyAB=0

                      https://ru.aliexpress.com/item/110-240-AC/32844571674.html?spm=a2g0v.search0204.3.59.649e519fCHRWZY&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&algo_expid=0152a640-c1c2-47b6-b06f-7b03feadea51-8&algo_pvid=0152a640-c1c2-47b6-b06f-7b03feadea51&transAbTest=ae803_2&priceBeautifyAB=0

                      No stencil?

                      berkseoB 1 Reply Last reply
                      0
                      • N NeverDie

                        @berkseo said in 💬 MyS Duino:

                        @nca78 said in 💬 MyS Duino:

                        0.45mm pitch, it will be a pain to hand solder and the big ground pad at the bottom is out of reach, get a stencil.

                        soldering paste and soldering dryer :) It's very simple :)

                        https://ru.aliexpress.com/item/Free-shipping-2013-New-2PCS-Lot-100-Hong-Kong-MECHANIC-BGA-Solder-Flux-Paste-Soldering-Tin/922291342.html?spm=a2g0v.search0204.3.23.2cb57150vey63U&s=p&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&transAbTest=ae803_2&priceBeautifyAB=0

                        https://ru.aliexpress.com/item/110-240-AC/32844571674.html?spm=a2g0v.search0204.3.59.649e519fCHRWZY&ws_ab_test=searchweb0_0%2Csearchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_5722611_10341_10543_10698_10697_10696_5722911_5722811_10084_5722711_10083_10618_10307_10301_5711211_10059_10212_308_100031_10103_441_10624_10623_10622_10621_10620_5711311_5722511_10125%2Csearchweb201603_32%2CppcSwitch_3_ppcChannel&algo_expid=0152a640-c1c2-47b6-b06f-7b03feadea51-8&algo_pvid=0152a640-c1c2-47b6-b06f-7b03feadea51&transAbTest=ae803_2&priceBeautifyAB=0

                        No stencil?

                        berkseoB Offline
                        berkseoB Offline
                        berkseo
                        wrote on last edited by berkseo
                        #11

                        @neverdie said in 💬 MyS Duino:

                        No stencil?
                        will add later ...

                        PCB manufacturing process
                        https://www.youtube.com/watch?v=8tg0u7rf7Xg

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