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Do we have any electrical engineers on the board?

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  • #16
    Originally posted by YALE View Post
    Will an Arduino instructable help?
    Arduino-DIY Laser / IR Person Counter
    http://www.instructables.com/id/IR-laser-person-counter/
    Arduino-DIY Laser / IR Person Counter: A Bi-Directional person / object counter is a device which can be used to monitor the number of objects entering / exiting through it. It has a wide range of applications including automatic parking slots monitoring , number of people entering / exi…

    or
    4-Digit Arduino Counter
    http://www.instructables.com/id/1-4-Digit-Arduino-Counter/
    4-Digit Arduino Counter: This project is ideal to understand the logic of work of a counter by utilizing Arduino code since you have available 4 programs: 1 for 1-digit, 1 for 2-digit, 1 for 3-digit, and other for 4-digit counter with one single 4-digit panel. Here, you can…


    PM Muffrazr,
    Isn't it snatch napkin?
    Originally posted by davbrucas
    I want to like Slow99 since people I know say he's a good guy, but just about everything he posts is condescending and passive aggressive.

    Most people I talk to have nothing but good things to say about you, but you sure come across as a condescending prick. Do you have an inferiority complex you've attempted to overcome through overachievement? Or were you fondled as a child?

    You and slow99 should date. You both have passive aggressiveness down pat.

    Comment

    • #17
      Originally posted by slow99 View Post
      Isn't it snatch napkin?
      Yeah, I don't know why I got that wrong.
      ZOMBIE REAGAN FOR PRESIDENT 2016!!! heh

      Comment

      • #18
        with out looking at the circuit, use a NOR right after the switch



        When the switch is interrupted and outputs a 0 the NOR will convert it to a 1 as its not recognizing any input

        Comment

        • #19
          Originally posted by John -- '02 HAWK View Post
          with out looking at the circuit, use a NOR right after the switch



          When the switch is interrupted and outputs a 0 the NOR will convert it to a 1 as its not recognizing any input
          I'd have to look into it, but yes that looks like a solution. Once I get the sensor in I'll look to see which IC I would need. Looks like they have 74LS02 Quad 2-input, 74LS27 Triple 3-input, and 74LS260 Dual 4-input.

          http://www.electronics-tutorials.ws/logic/logic_6.html


          this seems to list the different IC's available. I'll have to see exactly what I would need.
          "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
          "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

          Comment

          • #20
            Where is bernie mosfet? If it wasnt midnight and I wasnt 6 vodka drinks in i'm sure I could handle this shit for you.
            DE OPPRESSO LIBER

            Comment

            • #21
              Originally posted by HarrisonTX View Post
              Where is bernie mosfet? If it wasnt midnight and I wasnt 6 vodka drinks in i'm sure I could handle this shit for you.
              This is way out of my league, honestly. I know how to solder simple circuits, but creating logic controllers and IC's is a little beyond my experience level. I'd essentially need someone to go: buy this and this, and solder it together like this.
              "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
              "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

              Comment

              • #22
                Take this as me just looking at the name I havent looked into the chips



                Quad 2-input = The Chip has 4 NOR gates with each gate having 2 inputs

                Triple 3-input = The Chip has 3 NOR gates with each gate having 3 inputs

                Dual 4-input = The Chip has 2 NOR gates with each gate having 4 inputs



                the quad 2 is probably what you need

                Comment

                • #23
                  Originally posted by John -- '02 HAWK View Post
                  Take this as me just looking at the name I havent looked into the chips



                  Quad 2-input = The Chip has 4 NOR gates with each gate having 2 inputs

                  Triple 3-input = The Chip has 3 NOR gates with each gate having 3 inputs

                  Dual 4-input = The Chip has 2 NOR gates with each gate having 4 inputs



                  the quad 2 is probably what you need
                  Why NOR instead of just a NOT gate?
                  Originally posted by Broncojohnny
                  HOORAY ME and FUCK YOU!

                  Comment

                  • #24
                    Originally posted by Nash B. View Post
                    Why NOR instead of just a NOT gate?
                    no real reason other than there is some actual logic, and a chance that it is used elsewhere in the circuit

                    Comment

                    • #25
                      What other input would you be combining it with, though?
                      Originally posted by Broncojohnny
                      HOORAY ME and FUCK YOU!

                      Comment

                      • #26
                        No help here but just wondering are you trying to count bullet production?
                        Originally posted by Marisa
                        we women are all irrational and emotional and insane...some just hide it better than others.

                        truth.

                        Comment

                        • #27
                          Originally posted by red89notch View Post
                          No help here but just wondering are you trying to count bullet production?
                          Yes, I need a more accurate way to gauge production, I've been putting this off for a while, but I finally got around to doing it.
                          "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
                          "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

                          Comment

                          • #28
                            Are you making a rapid fire drop shot controller?

                            Comment

                            • #29
                              Originally posted by slow99 View Post
                              Best of luck. I know we have a few engineers of varying disciplines, not sure if any of them are electrical engineers. The user name Bernie Mosfet does imply that he is one, however, maybe try him.
                              Guilty.

                              Originally posted by zora04 View Post
                              Use a relay
                              Bad. Relays have contact bounce which could give false inputs if the counter input is sensitive, and may not switch fast enough for reliable counting anyway.

                              Originally posted by Ruffdaddy View Post
                              Good luck, I thought MOSFET was an EE.

                              Edit: not sure if he posts much though.
                              True.

                              Originally posted by HarrisonTX View Post
                              Where is bernie mosfet? If it wasnt midnight and I wasnt 6 vodka drinks in i'm sure I could handle this shit for you.
                              Late to the party...

                              Originally posted by Nash B. View Post
                              Why NOR instead of just a NOT gate?
                              Yes.


                              PM sent. I may have a simple solution for you. You can insert an n-channel MOSFET and a resistor between your photosensor output and counter input. This will invert the signal. You could even just use two n-channel mosfets, honestly.

                              Look up "n-channel mosfet not gate". Easy, cheap, and it'll work.
                              Men have become the tools of their tools.
                              -Henry David Thoreau

                              Comment

                              • #30
                                Originally posted by John -- '02 HAWK View Post
                                with out looking at the circuit, use a NOR right after the switch



                                When the switch is interrupted and outputs a 0 the NOR will convert it to a 1 as its not recognizing any input
                                That is what I would have tried. That or a NAND circuit.

                                Comment

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