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CIRCLE WITH A DOT

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  3. Ok #electronics nerds.

Ok #electronics nerds.

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electronics
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  • paco@infosec.exchangeP paco@infosec.exchange

    Ok #electronics nerds. I must be doing something wrong.

    (Edit: Narrator: he was doing something wrong. As usual. Probes plugged into the wrong holes on the multimeter!)

    If I put my multimeter on resistance (that’s what I have done, isn’t it?) and I touch the 2 probes together, I expect to see basically 0 resistance. But I see 12.59. Then I touch the probes to the 2 terminals of my thermistor. I get basically the same reading. That makes no sense to me.

    I mean, I think the thermistor has gone bad, but I also don’t understand whether I’m doing this right. Is this actually a common failure mode for thermistors or am I doing something dumb with my multimeter?

    arrjay@tacobelllabs.netA This user is from outside of this forum
    arrjay@tacobelllabs.netA This user is from outside of this forum
    arrjay@tacobelllabs.net
    wrote last edited by
    #3

    @paco it should be near 0 for probes together- perhaps a probe is bad?

    1 Reply Last reply
    0
    • revk@toot.me.ukR revk@toot.me.uk

      @paco Are plugs in right sockets for resistance measurement?

      Many meters have different sockets for passive and active measurement (voltage/resistance vs current).

      paco@infosec.exchangeP This user is from outside of this forum
      paco@infosec.exchangeP This user is from outside of this forum
      paco@infosec.exchange
      wrote last edited by
      #4

      @revk I think so?

      Link Preview Image
      revk@toot.me.ukR xabean@infosec.exchangeX 2 Replies Last reply
      0
      • paco@infosec.exchangeP paco@infosec.exchange

        @revk I think so?

        Link Preview Image
        revk@toot.me.ukR This user is from outside of this forum
        revk@toot.me.ukR This user is from outside of this forum
        revk@toot.me.uk
        wrote last edited by
        #5

        @paco Should black always be in COM? Red in Ω

        I mean that is confusing, but looks that way.

        paco@infosec.exchangeP 1 Reply Last reply
        0
        • revk@toot.me.ukR revk@toot.me.uk

          @paco Should black always be in COM? Red in Ω

          I mean that is confusing, but looks that way.

          paco@infosec.exchangeP This user is from outside of this forum
          paco@infosec.exchangeP This user is from outside of this forum
          paco@infosec.exchange
          wrote last edited by
          #6

          @revk Goddammit. I had the probes in the wrong god damn holes! @arrjay

          revk@toot.me.ukR 1 Reply Last reply
          0
          • paco@infosec.exchangeP paco@infosec.exchange

            @revk Goddammit. I had the probes in the wrong god damn holes! @arrjay

            revk@toot.me.ukR This user is from outside of this forum
            revk@toot.me.ukR This user is from outside of this forum
            revk@toot.me.uk
            wrote last edited by
            #7

            @paco @dashrb This is a lovely example of *** 4 MINUTES *** on the Fediverse.

            A random person asks a deeply technical question.

            4 minutes later they have working answer.

            The fucking fediverse rocks.

            OK, I am no linguist, it may be "The fediverse fucking rocks" - someone tells me which.

            Glad to be a part of it.

            I may go to the pub now...

            fritzadalis@infosec.exchangeF laguiri@neopaquita.esL 2 Replies Last reply
            1
            0
            • paco@infosec.exchangeP paco@infosec.exchange

              @revk I think so?

              Link Preview Image
              xabean@infosec.exchangeX This user is from outside of this forum
              xabean@infosec.exchangeX This user is from outside of this forum
              xabean@infosec.exchange
              wrote last edited by
              #8

              @paco @revk try black in COM, (bottom right) red in VΩ┥┝ (top right) and then in resistance mode, join the probe leads together. Should read 0 or very close to 0. Lemme know if that's what happens!

              paco@infosec.exchangeP 1 Reply Last reply
              0
              • xabean@infosec.exchangeX xabean@infosec.exchange

                @paco @revk try black in COM, (bottom right) red in VΩ┥┝ (top right) and then in resistance mode, join the probe leads together. Should read 0 or very close to 0. Lemme know if that's what happens!

                paco@infosec.exchangeP This user is from outside of this forum
                paco@infosec.exchangeP This user is from outside of this forum
                paco@infosec.exchange
                wrote last edited by
                #9

                @xabean @revk sigh…

                xabean@infosec.exchangeX 1 Reply Last reply
                0
                • paco@infosec.exchangeP paco@infosec.exchange

                  @xabean @revk sigh…

                  xabean@infosec.exchangeX This user is from outside of this forum
                  xabean@infosec.exchangeX This user is from outside of this forum
                  xabean@infosec.exchange
                  wrote last edited by
                  #10

                  @paco @revk We are From the Internet and we're Here to Help.

                  simonzerafa@infosec.exchangeS 1 Reply Last reply
                  0
                  • paco@infosec.exchangeP paco@infosec.exchange

                    Ok #electronics nerds. I must be doing something wrong.

                    (Edit: Narrator: he was doing something wrong. As usual. Probes plugged into the wrong holes on the multimeter!)

                    If I put my multimeter on resistance (that’s what I have done, isn’t it?) and I touch the 2 probes together, I expect to see basically 0 resistance. But I see 12.59. Then I touch the probes to the 2 terminals of my thermistor. I get basically the same reading. That makes no sense to me.

                    I mean, I think the thermistor has gone bad, but I also don’t understand whether I’m doing this right. Is this actually a common failure mode for thermistors or am I doing something dumb with my multimeter?

                    brendan@social.brendans-bits.comB This user is from outside of this forum
                    brendan@social.brendans-bits.comB This user is from outside of this forum
                    brendan@social.brendans-bits.com
                    wrote last edited by
                    #11

                    @paco
                    Disregard my post, @revk had the same idea as I did.

                    Can you post a photo showing where your leads are plugged into the multimeter?

                    paco@infosec.exchangeP 1 Reply Last reply
                    0
                    • xabean@infosec.exchangeX xabean@infosec.exchange

                      @paco @revk We are From the Internet and we're Here to Help.

                      simonzerafa@infosec.exchangeS This user is from outside of this forum
                      simonzerafa@infosec.exchangeS This user is from outside of this forum
                      simonzerafa@infosec.exchange
                      wrote last edited by
                      #12

                      @xabean @paco @revk

                      One is glad to be of service 😉

                      Link Preview Image
                      1 Reply Last reply
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                      • revk@toot.me.ukR revk@toot.me.uk

                        @paco @dashrb This is a lovely example of *** 4 MINUTES *** on the Fediverse.

                        A random person asks a deeply technical question.

                        4 minutes later they have working answer.

                        The fucking fediverse rocks.

                        OK, I am no linguist, it may be "The fediverse fucking rocks" - someone tells me which.

                        Glad to be a part of it.

                        I may go to the pub now...

                        fritzadalis@infosec.exchangeF This user is from outside of this forum
                        fritzadalis@infosec.exchangeF This user is from outside of this forum
                        fritzadalis@infosec.exchange
                        wrote last edited by
                        #13

                        @revk @paco @dashrb @paco
                        Fucking Fediverse rocks is about the Fediverse fucking.

                        Fediverse fucking rocks is about the fucking Fediverse.

                        ramsey@phpc.socialR 1 Reply Last reply
                        0
                        • brendan@social.brendans-bits.comB brendan@social.brendans-bits.com

                          @paco
                          Disregard my post, @revk had the same idea as I did.

                          Can you post a photo showing where your leads are plugged into the multimeter?

                          paco@infosec.exchangeP This user is from outside of this forum
                          paco@infosec.exchangeP This user is from outside of this forum
                          paco@infosec.exchange
                          wrote last edited by
                          #14

                          @brendan Yep. I am embarrassed. Wrong hole, you idiot. https://infosec.exchange/@paco/116273308690418878

                          @revk

                          brendan@social.brendans-bits.comB 1 Reply Last reply
                          0
                          • revk@toot.me.ukR revk@toot.me.uk

                            @paco @dashrb This is a lovely example of *** 4 MINUTES *** on the Fediverse.

                            A random person asks a deeply technical question.

                            4 minutes later they have working answer.

                            The fucking fediverse rocks.

                            OK, I am no linguist, it may be "The fediverse fucking rocks" - someone tells me which.

                            Glad to be a part of it.

                            I may go to the pub now...

                            laguiri@neopaquita.esL This user is from outside of this forum
                            laguiri@neopaquita.esL This user is from outside of this forum
                            laguiri@neopaquita.es
                            wrote last edited by
                            #15

                            @revk @paco @dashrb it depends if your emphasis is on the excellence of the fediverse (it fucking rocks) or how different it is from a previously mentioned thing (the fucking Fediverse and no other)

                            1 Reply Last reply
                            0
                            • fritzadalis@infosec.exchangeF fritzadalis@infosec.exchange

                              @revk @paco @dashrb @paco
                              Fucking Fediverse rocks is about the Fediverse fucking.

                              Fediverse fucking rocks is about the fucking Fediverse.

                              ramsey@phpc.socialR This user is from outside of this forum
                              ramsey@phpc.socialR This user is from outside of this forum
                              ramsey@phpc.social
                              wrote last edited by
                              #16

                              @FritzAdalis @revk @paco @dashrb I read “fucking Fediverse rocks” as being about one who is fucking rocks from the Fediverse.

                              While “Fediverse fucking rocks” is about the entire Fediverse have sex with rocks.

                              ramsey@phpc.socialR 1 Reply Last reply
                              0
                              • ramsey@phpc.socialR ramsey@phpc.social

                                @FritzAdalis @revk @paco @dashrb I read “fucking Fediverse rocks” as being about one who is fucking rocks from the Fediverse.

                                While “Fediverse fucking rocks” is about the entire Fediverse have sex with rocks.

                                ramsey@phpc.socialR This user is from outside of this forum
                                ramsey@phpc.socialR This user is from outside of this forum
                                ramsey@phpc.social
                                wrote last edited by
                                #17

                                @FritzAdalis @revk @paco @dashrb Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.

                                1 Reply Last reply
                                0
                                • paco@infosec.exchangeP paco@infosec.exchange

                                  @brendan Yep. I am embarrassed. Wrong hole, you idiot. https://infosec.exchange/@paco/116273308690418878

                                  @revk

                                  brendan@social.brendans-bits.comB This user is from outside of this forum
                                  brendan@social.brendans-bits.comB This user is from outside of this forum
                                  brendan@social.brendans-bits.com
                                  wrote last edited by
                                  #18

                                  @paco @revk It's good you got to the bottom of this mystery. We've all made that same mistake before, more than once!

                                  revk@toot.me.ukR 1 Reply Last reply
                                  0
                                  • brendan@social.brendans-bits.comB brendan@social.brendans-bits.com

                                    @paco @revk It's good you got to the bottom of this mystery. We've all made that same mistake before, more than once!

                                    revk@toot.me.ukR This user is from outside of this forum
                                    revk@toot.me.ukR This user is from outside of this forum
                                    revk@toot.me.uk
                                    wrote last edited by
                                    #19

                                    @brendan @paco Indeed, been there, done that!

                                    Now I need a "got the t-shirt" design for

                                    "wrong hole [multimeter edition]"

                                    1 Reply Last reply
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