Volts regulator with digital readout help

Discussion in 'The Projects Forum' started by CamdenCircuits, Mar 11, 2015.

  1. CamdenCircuits

    Thread Starter New Member

    Mar 11, 2015
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    Hi all. Working on a project with my dad and we need a little help. Looking to build a module that can regulate wattage or volt output with a digital display that shows battery gauge and ohm readout. Sounds complicated and I realize there will be a bit of programing involved. Any and all help is greatly appreciated. Thank you in advance
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    Close enough but not quite there yet. You have to tell us what you are trying to do.
    Are you trying to display the voltage of a battery and the current drawn?
    You can do that with a voltmeter and an ammeter, analog or digital. No programming required.
     
  3. #12

    Expert

    Nov 30, 2010
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    That sounds like you need a voltage regulator, a digital display, some way to interpret battery voltage, and what do you want to read the ohms of?
     
  4. CamdenCircuits

    Thread Starter New Member

    Mar 11, 2015
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    Building a homemade vaporizer modbox. Basically a box that has a battery and a firing button. The regulator would have an output to a 5 10 connector and the readout would have two buttons that adjust the volt/wattage output to the 5 10 connector. The readout should display watts/volts, battery life, and ohms. Battery would have a charging port
     
  5. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    Do you want to make a variable power supply with a battery, or are you trying to monitor the battery load?
     
  6. CamdenCircuits

    Thread Starter New Member

    Mar 11, 2015
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    A variable power supply. I've made one that is analog where u turn a knob to adjust the output but I'm trying to figure out how to make one that is digital.
     
  7. Dodgydave

    Distinguished Member

    Jun 22, 2012
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  8. MrChips

    Moderator

    Oct 2, 2009
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    Then what you need is a variable voltage power supply with current limit adjustment.

    Voltage and current are not independent. You set the voltage. The current will be dependent on the load.
    You set a current limit. If the current limit is reached then the voltage will be reduced to accommodate that current.
     
  9. CamdenCircuits

    Thread Starter New Member

    Mar 11, 2015
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    Dodgydave likes this.
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