Hello I want to make this device for my water tank based on this youtube vid

Hello I want to make this device for my water tank based on this youtube vid

The schematic is here
However I am completely electronically illiterate, I'll have someone print a PCB based on this. But is the power source supposed to be AC or DC? That 12V2 thingy to the left

250 Piece Survival Gear First Aid Kit

LifeStraw Water Filter for Hiking and Preparedness

250 Piece Survival Gear First Aid Kit

  1. 1 month ago
    Anonymous

    Wait it has positive and negative terminals, so that's DC right? Am I moronic?

    • 1 month ago
      Anonymous

      >Am I moronic?
      If you had to ask.

  2. 1 month ago
    Anonymous

    Why do you even bother with 12V?
    Nothing uses the 12V there.
    Remove the 7805 and caps and run it with a 5V power supply directly.

    • 1 month ago
      Anonymous

      This OP, run it with a 2A USB supply or something. Additionally get TC-9520280 so you don’t need a board just to put some LEDs

      • 1 month ago
        Anonymous

        >I am completely electronically illiterate
        can't find the led piece, im a thirdie and can only find a 4 bit led

        Why do you even bother with 12V?
        Nothing uses the 12V there.
        Remove the 7805 and caps and run it with a 5V power supply directly.

        my electronic capability stops at lego assembly. How should I wire it with a direct 5v dc?

        • 1 month ago
          Anonymous

          > How should I wire it with a direct 5v dc?

          there's a pad on PCB with a red wire
          it's labeled 5V, so that's +5V
          ground is 2 pads to the right of that, with black wire, labeled GND

          but you're not gonna be successful with this project coz you gotta program that lil computer, and that requires a whole lot of learning, and 1000 more questions

          • 1 month ago
            Anonymous

            Isn't the 5V pin used for the sensor already? Should I use the VIN pin?

            • 1 month ago
              Anonymous

              >Isn't the 5V pin used for the sensor already?

              it's the power rail
              so it can connect to 1000 diff points
              to power everything that needs power

              >Should I use the VIN pin?

              no, but you can connect your power source (+5V) at the Vin pin coz it has reverse-polarity protection
              that is, it wont kill the arduino if you plug in power backwards, whereas it might kill it if you put reversed voltage on 5V pad

        • 1 month ago
          Anonymous

          OP
          What do you want from this project? are you just looking for an indicator led or autoshutoff for a water pump?

          • 1 month ago
            Anonymous

            I can't do an autoshutoff because that would require me to tamper with the pump's circuit and a relay circuit which would definitely frick me over

            > How should I wire it with a direct 5v dc?

            there's a pad on PCB with a red wire
            it's labeled 5V, so that's +5V
            ground is 2 pads to the right of that, with black wire, labeled GND

            but you're not gonna be successful with this project coz you gotta program that lil computer, and that requires a whole lot of learning, and 1000 more questions

            Oh I can do CPP just fine, I'm just totally illiterate in electronics. I'm sure I can get around programming the chip with some digging about the syntax

            • 1 month ago
              Anonymous

              But what is it that you actually desire from this circuit?
              What do you want it to do for you that you see in the circuit devised by the guy in the video?

              • 1 month ago
                Anonymous

                i can make a buzzer to remind myself to shut it off

              • 1 month ago
                Anonymous

                if that's all you want then just use a float valve to trigger a switch that sets the buzzer off when the water gets high enough in he tank?

              • 1 month ago
                Anonymous

                hmm it would seem using an electric float valve would be better thanks for the idea

              • 1 month ago
                Anonymous

                >electric float valve
                use it to turn the pump off you flaming moron

              • 1 month ago
                Anonymous

                This.

                i can make a buzzer to remind myself to shut it off

                Just use a float switch trigger a relay that activates the pump when the water gets lower. Like an electric toilet, come on man!

        • 1 month ago
          Anonymous

          >How should I wire it with a direct 5v dc?
          solder the 5v and ground pads to the 5v and ground wires on a usb a plug

  3. 1 month ago
    Anonymous

    >But is the power source supposed to be AC or DC?
    I think it's time to give up.

  4. 1 month ago
    Anonymous

    the actual water pressure sensor is the black coil and you are not making that so why are you making the end that reads it and displays a vague set of lights? just buy a fricking display unit.

  5. 1 month ago
    Anonymous

    >it has happened to my family many times
    Has this idiot never heard of a ball valve?

    • 1 month ago
      Anonymous

      *ballwiener valve

  6. 1 month ago
    Anonymous

    >But is the power source supposed to be AC or DC? That 12V2 thingy to the left
    12DC. If it wanted AC you'd probably see a transformer in the schematic. This looks like it's designed for a cheap wall-wart power plug or maybe a computer power supply. The 7805 and caps are just to give a nice smooth 5V from a cheap (possibly noisy) supply

  7. 1 month ago
    Anonymous

    DC.but you can just use 5volt (or 9 even) for Vin. So grd to minus end of DC supply and Vin to plus end.

  8. 1 month ago
    Anonymous

    Arduino actually is not susposed to be supplied with 5 volts except with usb. It can just directly use 12volts. Who ever put that voltage regulator there is just pure poser.

  9. 1 month ago
    Anonymous

    idiot here. whats the point of capacitors like that shorting the circuit

    • 1 month ago
      Anonymous

      capacitors allow ac to pass through them but block dc so they filter noise from a dc supply as a low pass filter

      filter frequency threshold = 1/ 2 * Pi * R * C

      • 1 month ago
        Anonymous

        >filter frequency threshold = 1/ 2 * Pi * R * C
        nice work joe smartguy, showin off that fine education. now tell your student the value of R to plug into your fine equation.

        • 1 month ago
          Anonymous

          The value is nominal here, it won't really matter because dc is effectively 0Hz.

      • 1 month ago
        Anonymous

        >they filter noise from a dc supply

        true but that's not the property used in this circuit
        they can act like very weak rechargeable batteries to smooth out any quick variations in DC levels
        those in the know call it ''ripple rejection''
        not to be confused with ''nipple rejection'' which is when babies prefer bottles

        • 1 month ago
          Anonymous

          >which is when babies prefer bottles
          god, that must be crushing for the mother's self esteem lol

          • 1 month ago
            Anonymous

            misinformation from the 50s still propagates today, the same reason they cut part of your dick off.

  10. 1 month ago
    Anonymous

    You can buy actual float switches, they use a sliding metal contact on a float so that the pump doesn't turn off and on every time the water level goes down 2mm

  11. 1 month ago
    Anonymous

    motorhomes and trailers use those. rip one off there.

Your email address will not be published. Required fields are marked *