ESR meter upgrades

Collapse
This is a sticky topic.
X
X
 
  • Time
  • Show
Clear All
new posts
  • vinceroger69
    Badcaps Legend
    • Mar 2012
    • 6714
    • uk

    #381
    Re: ESR meter upgrades

    Thanks for testing the files per hansson i wonder if its worth now updating the eevblog thread with the information and picture stj found regarding the screen and ribbon connections.

    Comment

    • Per Hansson
      Super Moderator
      • Jul 2005
      • 5895
      • Sweden

      #382
      Re: ESR meter upgrades

      Would be interesting if you could test them too, since we know your programmer works.
      As I don't have a working chip I obviously can't be 100% sure there isn't something else wrong with mine...

      Btw, you said you can't read the firmware from your working pre-programmed Atmega chip, but can you read how the fuses are set on it?
      "The one who says it cannot be done should never interrupt the one who is doing it."

      Comment

      • stj
        Great Sage 齊天大聖
        • Dec 2009
        • 30932
        • Albion

        #383
        Re: ESR meter upgrades

        i'm starting to wonder if they sent you a fucked chip rather than a blank one!

        Comment

        • vinceroger69
          Badcaps Legend
          • Mar 2012
          • 6714
          • uk

          #384
          Re: ESR meter upgrades

          Originally posted by Per Hansson
          Would be interesting if you could test them too, since we know your programmer works.
          As I don't have a working chip I obviously can't be 100% sure there isn't something else wrong with mine...

          Btw, you said you can't read the firmware from your working pre-programmed Atmega chip, but can you read how the fuses are set on it?
          i will give it a try and see if it says anything in the fuse settings

          Comment

          • vinceroger69
            Badcaps Legend
            • Mar 2012
            • 6714
            • uk

            #385
            Re: ESR meter upgrades

            ive just reinstalled the programmer on a new windows 10 install it still has no data when read all ff but in fuses says
            low f9
            high d9
            extended fuse ff
            lock bit byte fc
            and with two of your files ive tried so far stj just a blank screen on one and the text the same a per hansson with the other
            Last edited by vinceroger69; 07-15-2016, 12:47 PM.

            Comment

            • vinceroger69
              Badcaps Legend
              • Mar 2012
              • 6714
              • uk

              #386
              Re: ESR meter upgrades

              madires has sent this reply though eevblog
              Originally posted by madires
              Based on the picture of the LCD module it should be a ST7920, In Karl-Heinz' documentation the ST7920 is stated as "serial" with only three I/O pins (REST = PD0 / B0 = PD2 / EN = PD5). The ST7920 got Reset, CS, SID and CLK, but they got different functions in parallel interface mode. I think the best idea is to check the source code for the functions of the three I/O pins and then to adapt the port pins to match the hardware. You might need to add some code to drive the CS.
              so not sure if any of you guys can do the coding he mentions?
              Last edited by Per Hansson; 07-16-2016, 03:01 AM. Reason: Added quote tags

              Comment

              • Per Hansson
                Super Moderator
                • Jul 2005
                • 5895
                • Sweden

                #387
                Re: ESR meter upgrades

                This firmware works but display is upside down and inverted:
                https://www.mikrocontroller.net/topi...270706#4270706

                This firmware works, display is also oriented correctly. But no MakeFile is included.
                https://www.mikrocontroller.net/topi...278544#4278544
                "The one who says it cannot be done should never interrupt the one who is doing it."

                Comment

                • vinceroger69
                  Badcaps Legend
                  • Mar 2012
                  • 6714
                  • uk

                  #388
                  Re: ESR meter upgrades

                  Originally posted by Per Hansson
                  This firmware works but display is upside down and inverted:
                  https://www.mikrocontroller.net/topi...270706#4270706

                  This firmware works, display is also oriented correctly. But no MakeFile is included.
                  https://www.mikrocontroller.net/topi...278544#4278544
                  i will copy this over too the eevblog thread and see if someone can modify them for us

                  Comment

                  • vinceroger69
                    Badcaps Legend
                    • Mar 2012
                    • 6714
                    • uk

                    #389
                    Re: ESR meter upgrades

                    im new to this coding stuff so i guess the makefile is what the tester can test and values etc?

                    Comment

                    • Per Hansson
                      Super Moderator
                      • Jul 2005
                      • 5895
                      • Sweden

                      #390
                      Re: ESR meter upgrades

                      Originally posted by vinceroger69
                      im new to this coding stuff so i guess the makefile is what the tester can test and values etc?
                      No it's just what is needed to know _why_ that specific firmware works.
                      I.e. it's the compilation options that the firmware is built from.

                      The source code itself is the same for all meters, it's just different options used in the makefile for what gets enabled, type of monitor, crystal, etc etc etc.
                      And of course the source code is constantly evolving, that's why new options etc can be added in later builds.
                      "The one who says it cannot be done should never interrupt the one who is doing it."

                      Comment

                      • vinceroger69
                        Badcaps Legend
                        • Mar 2012
                        • 6714
                        • uk

                        #391
                        Re: ESR meter upgrades

                        Thankyou for explaining that at least your getting somewhere now in finding the firmware that works and at least it proves your atmega ic is good as its being programmed ok as you say its just finding the rite version etc but your making progress.

                        Comment

                        • vinceroger69
                          Badcaps Legend
                          • Mar 2012
                          • 6714
                          • uk

                          #392
                          Re: ESR meter upgrades

                          Which fuse settings are you using? i may try tomorrow to program mine just to see if i my programer is working ok.

                          Comment

                          • stj
                            Great Sage 齊天大聖
                            • Dec 2009
                            • 30932
                            • Albion

                            #393
                            Re: ESR meter upgrades

                            test this then.
                            Attached Files

                            Comment

                            • vinceroger69
                              Badcaps Legend
                              • Mar 2012
                              • 6714
                              • uk

                              #394
                              Re: ESR meter upgrades

                              if per hansson dosnt try it before me i will try it in the morning stj thanks again for helping getting these testers working.

                              Comment

                              • Per Hansson
                                Super Moderator
                                • Jul 2005
                                • 5895
                                • Sweden

                                #395
                                Re: ESR meter upgrades

                                Originally posted by vinceroger69
                                Which fuse settings are you using? i may try tomorrow to program mine just to see if i my programer is working ok.
                                I used the standard fuse settings: Low:0xF7, High:0xD9, Ext:0xFC
                                (I just wanted to test your original fuse settings on the "Original.zip" firmware the eBay seller sent me but it was just the same...)

                                Originally posted by stj
                                test this then.
                                It showed one scrolling line of text like your others, this time it was a bit better contrast and maybe thicker fonts, or just slower, difficult to say...
                                "The one who says it cannot be done should never interrupt the one who is doing it."

                                Comment

                                • vinceroger69
                                  Badcaps Legend
                                  • Mar 2012
                                  • 6714
                                  • uk

                                  #396
                                  Re: ESR meter upgrades

                                  Originally posted by Per Hansson
                                  I used the standard fuse settings: Low:0xF7, High:0xD9, Ext:0xFC
                                  (I just wanted to test your original fuse settings on the "Original.zip" firmware the eBay seller sent me but it was just the same...)


                                  It showed one scrolling line of text like your others, this time it was a bit better contrast and maybe thicker fonts, or just slower, difficult to say...
                                  Thanks i will try mine in the morning with the two links you posted earlier.

                                  Comment

                                  • stj
                                    Great Sage 齊天大聖
                                    • Dec 2009
                                    • 30932
                                    • Albion

                                    #397
                                    Re: ESR meter upgrades

                                    then try both of these.
                                    Attached Files

                                    Comment

                                    • stj
                                      Great Sage 齊天大聖
                                      • Dec 2009
                                      • 30932
                                      • Albion

                                      #398
                                      Re: ESR meter upgrades

                                      vince - on your working one.
                                      hold the encoder down to get into the menu,
                                      then go to the contrast setting and find the best value for it.

                                      Comment

                                      • vinceroger69
                                        Badcaps Legend
                                        • Mar 2012
                                        • 6714
                                        • uk

                                        #399
                                        Re: ESR meter upgrades

                                        40 shows the best imaage on the panel
                                        slightly of topic but whats the variable resistor on the pcb for?

                                        Comment

                                        • stj
                                          Great Sage 齊天大聖
                                          • Dec 2009
                                          • 30932
                                          • Albion

                                          #400
                                          Re: ESR meter upgrades

                                          input sensitivity for the frequency counter mode.

                                          check page 13 section 2.2.4 of the pdf

                                          Comment

                                          Related Topics

                                          Collapse

                                          • chth96
                                            Is it possible to test small ceramic disc capacitor with analogue meter?
                                            by chth96
                                            I read EBOOK of Testing Electronic Component and found that

                                            "In order to test the small blue resin coated ceramic disk capacitor which has 104 50v specification,it is possible to test this small ceramic capacitor by making use of analogue meter.
                                            Set to times 10Kohm that has 12v output from the probe to check disorder of ceramic capacitor.
                                            It is not uncommon that testing result of digital capacitance meter is okay,But It show shorted reading when you check it with analogue meter."

                                            Is it really possible to test small ceramic disc capacitor with analogue...
                                            03-09-2024, 10:03 PM
                                          • sam_sam_sam
                                            Modification of a Fluke multi meter that uses three AA batteries to use a 14500 lithium ion battery
                                            by sam_sam_sam
                                            I have had with regular AA batteries that leak this meter is expensive new I already replaced the battery battery clips once and the same thing happened again and I am tried of so it is getting modified to accommodate lithium ion batteries that are the same size excluding the positive terminal and removing the battery clips I will have enough room for the BMS protection board

                                            I going to put 3 lithium ion battery in parallel with the BMS protection board and a way to charge the battery externally and heat shrink the battery pack and use a JST connector so I easily remove the battery...
                                            12-31-2023, 06:04 AM
                                          • jorpec
                                            Changing the scale of an analog meter
                                            by jorpec
                                            Hi

                                            I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
                                            I wonder how i can accomplish this so the meter would be precise at any temperature ?

                                            Thnaks
                                            01-23-2023, 10:37 AM
                                          • sam_sam_sam
                                            How an incandescent light and a ESR meter ** friend**have a machine blowing fuses
                                            by sam_sam_sam
                                            About a month ago we had a transformer jumper wire that burned in two different places between two transformers caused over $200 thousand dollars worth of damage to VFD drives at least 10 of them and a memory card and quite a few power supply as well

                                            Now we have most of the equipment that got damaged back up and running except a feeder that has issues and we are waiting for some parts for

                                            Now we also have another piece of equipment that was blowing fuses on the 110 volt controller switch circuit with the “E” stops and one switching power (24 volt) supply and a transformer...
                                            12-14-2023, 07:45 PM
                                          • irepair559
                                            ps4 1215 model Changed port and encoder still no video?
                                            by irepair559
                                            hi guys so i have this ps4 fat 1215 i believe ( the one with the ps4 pro/slim newer encoder ic ) so i replaced hdmi and 2 blown filters and still no pic so i replaced encoder and still no pic. i made sure port is solid even checked with a breakout hdmi and tested ground and data lines.. Filters are all good , though 2 of the newer ones are larger then the original ones i dont know if that matters ?
                                            Made sure under the scope encoder pins all look solid went over with fine tip and solder again. Idk but this thing is stressing me out..
                                            ps4 seems to boot fine blue light then solid...
                                            01-01-2023, 12:41 AM
                                          • Loading...
                                          • No more items.
                                          Working...