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    Re: ESR meter upgrades

    Have you tried the firmware linked in this post? https://www.badcaps.net/forum/showpo...&postcount=795
    Can you please post a picture of the grid pattern the meter shows for 2 seconds?

    About the warning of the fuses: You can change:
    Code:
    efuse:0xfc:m
    Into:
    Code:
    efuse:0x04:m
    And it should not give that warning any more.
    "The one who says it cannot be done should never interrupt the one who is doing it."

    Comment


      Re: ESR meter upgrades

      per hansson is there any recent firmware available for our testers? as i have the same tester as you use i did update mine too 16mhz crystal etc.

      Comment


        Re: ESR meter upgrades

        I posted a build a few pages back:
        https://www.badcaps.net/forum/showpo...&postcount=767
        "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment


          Re: ESR meter upgrades

          Thank you i missed that post somehow i will try it on my tester later.

          Comment


            Re: ESR meter upgrades

            Thank you all for your time and help.would not have got this far without it.
            Update,
            I decided to bite the bullet after multiple writing and erasing the chip think I tried every avrdude file I could, I fitted a new atmega 328p au smd chip and eureka it took the first firmware download,and this is the result. so may have a playround upgrading now it is working, what does the 16mhz upgrade achieve?
            John
            Attached Files

            Comment


              Re: ESR meter upgrades

              Congrats, nice solder work, used a hot air station I take it?

              Comment


                Re: ESR meter upgrades

                16MHz increases accuracy, allows testing of crystals upto about 10MHz and reduces your battery life

                Comment


                  Re: ESR meter upgrades

                  Originally posted by jondoe View Post
                  Congrats, nice solder work, used a hot air station I take it?
                  Yes you are spot on (hot air soldering) have been in the trade over 50 years so soldering is not a problem. Its programing I have problems with, but with help from all of you on this Forum I got a result, many thanks.
                  John

                  Comment


                    Re: ESR meter upgrades

                    Great work TEDDIBEAR!
                    Glad you got it working
                    "The one who says it cannot be done should never interrupt the one who is doing it."

                    Comment


                      Re: ESR meter upgrades

                      Now that it is up and running what would I need to adapt this LCR T4 to work with a rotary encoder & 16mhz crystal, if it is possible with this model. if so what firmware would I need.
                      John

                      Comment


                        Re: ESR meter upgrades

                        QUESTION!- I have a few lipo cells with protection circuits and some of these micro USB charge controllers with 9 volt boost converters built in. I have the newest AY-AT PCB based tester. I'm going to put the lipo and charge controller/boost converter on it. How can I run the vbat signal that goes to R1 directly to my battery so i can see battery actual battery voltage and not the converter output voltage? Would I need to add another transistor like T1 between the battery and sense circuit to keep the voltage divider on the sense circuit from killing the battery?
                        Attached Files

                        Comment


                          Re: ESR meter upgrades

                          just connect ubat to the battery.
                          btw, i recommend using 2 in series rather than a boost converter.
                          some people have had problems with noise from the booster getting into the cpu

                          Comment


                            Re: ESR meter upgrades

                            Originally posted by TEDDIBEAR View Post
                            Now that it is up and running what would I need to adapt this LCR T4 to work with a rotary encoder & 16mhz crystal, if it is possible with this model. if so what firmware would I need.
                            John
                            to do the crystal - just swap it.
                            the rotary encoder - search this thread from page1.

                            Comment


                              Re: ESR meter upgrades

                              Originally posted by TEDDIBEAR View Post
                              Now that it is up and running what would I need to adapt this LCR T4 to work with a rotary encoder & 16mhz crystal, if it is possible with this model. if so what firmware would I need.
                              John
                              Maybe you are interested also read this post:

                              https://www.eevblog.com/forum/testge...19/#msg1090619

                              A greeting.
                              Last edited by pepe10000; 11-22-2017, 12:27 AM.

                              Comment


                                Re: ESR meter upgrades

                                Originally posted by Per Hansson View Post
                                what capacitor values do i need too calibrate the unit?as just checking i have the correct values here.

                                Comment


                                  Re: ESR meter upgrades

                                  A polypropylene 220nf capacitor and something to jumper all three test points.

                                  Comment


                                    Re: ESR meter upgrades

                                    after joining the three leads its now asking for two values 100nf and a 1pf im just trying to find new ones.

                                    Comment


                                      Re: ESR meter upgrades

                                      I guess some models vary in requirement!

                                      Just checked mine, it asks for >100nf so I suppose 220nf is good enough.
                                      Last edited by jondoe; 11-22-2017, 06:50 AM.

                                      Comment


                                        Re: ESR meter upgrades

                                        All sorted i read it wrong, it was just 1 100nf capacitor for calibration so im using this firmware now on my 1 mhz tester and stj version on my 8 mhz tester
                                        https://www.badcaps.net/forum/showpo...&postcount=767
                                        Last edited by vinceroger69; 11-22-2017, 08:08 AM.

                                        Comment


                                          Re: ESR meter upgrades

                                          Originally posted by TEDDIBEAR View Post
                                          Now that it is up and running what would I need to adapt this LCR T4 to work with a rotary encoder & 16mhz crystal, if it is possible with this model. if so what firmware would I need.
                                          John
                                          Originally posted by stj View Post
                                          to do the crystal - just swap it.
                                          the rotary encoder - search this thread from page1.
                                          He needs to change the firmware too: If not it will read capacitance 2x out for example.
                                          "The one who says it cannot be done should never interrupt the one who is doing it."

                                          Comment

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