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    ESR meter upgrades

    so - rotary encoder time.

    get your rotary encoder and bend and trim the center pin so it sits on the top of the board - like this:
    Attached Files

    #2
    Re: ESR meter upgrades

    next, take the original switch off, and scrape some laq off the top of the pcb for the center pin like this:
    (only for this model of meter)
    Attached Files
    Last edited by stj; 12-01-2015, 07:34 PM.

    Comment


      #3
      Re: ESR meter upgrades

      next, solder the encoder in,
      Attached Files

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        #4
        Re: ESR meter upgrades

        next you need a pair of 1k resistors and a pair of 10k resistors and some thin wire.

        just to be clear, the place the 10k resistors join the wire is NOT connected to the pcb!
        Attached Files
        Last edited by stj; 12-01-2015, 07:38 PM.

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          #5
          Re: ESR meter upgrades

          next you need to link the 2 cpu pins to the resistors.
          WARNING - this is pro-soldering!
          Attached Files

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            #6
            Re: ESR meter upgrades

            if you do it clean, it should look like this:
            Attached Files

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              #7
              Re: ESR meter upgrades

              back to the top of the pcb,
              solder the center tab of the encoder to the ground-point you remembered to scrape-clean on the pcb.
              Attached Files

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                #8
                Re: ESR meter upgrades

                2 foto's i had left.
                Attached Files

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                  #9
                  Re: ESR meter upgrades

                  and does it work?
                  NO - i have to compile new firmware first.

                  still, the hardware is done now.

                  Comment


                    #10
                    Re: ESR meter upgrades

                    Thank you for the walk through!

                    Comment


                      #11
                      Re: ESR meter upgrades

                      AND - IT'S HERE!

                      latest firmware compiled for this model by me.
                      with rotary encoder, new fonts/gfx, serial-port etc.
                      Attached Files

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                        #12
                        Re: ESR meter upgrades

                        Thank you

                        Comment


                          #13
                          Re: ESR meter upgrades

                          what extra functions does this firmware/encoder mod gain?

                          Comment


                            #14
                            Re: ESR meter upgrades

                            depends.
                            if your tester is pretty new and id's as 1.12k then nothing really, just a lot easier to use the menu function.

                            if your tester is old and running 1.11k or older then probably lots of new stuff.

                            Comment


                              #15
                              Re: ESR meter upgrades

                              i am going to be making some updates to that file.
                              just saying.

                              Comment


                                #16
                                Re: ESR meter upgrades

                                update:

                                btw, i'm willing to compile this for the T3 / T4 boards if asked.
                                Attached Files

                                Comment


                                  #17
                                  Re: ESR meter upgrades

                                  Thank you man. You're sure to be on Santa's nice list for this

                                  Comment


                                    #18
                                    Re: ESR meter upgrades

                                    bugfix.
                                    Attached Files

                                    Comment


                                      #19
                                      Re: ESR meter upgrades

                                      config fix.
                                      previous builds wont read inductors properly.

                                      Attached Files

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                                        #20
                                        Re: ESR meter upgrades

                                        There is one thing ESR meters should have, which is Kelvin sensing (4-wire measurement capability), which keeps measurement errors to a minimum.
                                        My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

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