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Thread: INPUTS - 12V Volts <> 5 Volts

  1. #1
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    Victoria, Australia
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    Question INPUTS - 12V Volts <> 5 Volts

    Is this correct:

    If you supply a voltage creater than 5V to board you will damage it?

    If you what board to act as voltmeter, must you use a Voltage Divider to ensure the max input doesnt exceed 5V - does the brain then convert and display 5V as being full battery charge?

    FusionFormDynamic.skin doesnt show any processing?

    #STARTNEW#
    #NAME#Battery
    #TYPE#VOLTAGE
    #VIDPID#MyBrain0
    #MULTILEVELGRAPHICS##0,4.3#\Black Skin\Analogue Graphs\Battery\Bar0.png;\Black Skin\Analogue Graphs\Battery\Bar1.png;\Black Skin\Analogue Graphs\Battery\Bar2.png;\Black Skin\Analogue Graphs\Battery\Bar3.png;\Black Skin\Analogue Graphs\Battery\Bar4.png;\Black Skin\Analogue Graphs\Battery\Bar5.png;\Black Skin\Analogue Graphs\Battery\Bar6.png;\Black Skin\Analogue Graphs\Battery\Bar7.png;\Black Skin\Analogue Graphs\Battery\Bar8.png
    #SIZE#92,144
    #LOCATION#133,19
    #SHOWTEXT#false
    #PAGE#0
    #PORT#1
    #BORDERSIZE#0
    #PLOTLENGTH#100
    #HISTORYSIZE#250
    #ENDNEW#

    thanks peter

  2. #2
    Fusion Brain Creator
    Join Date
    Mar 2005
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    2,221
    I will reply to the hardware portion, Nick can reply to the software scaling.

    If you source more than 5vDC to the analog input, you will damage the PIC.

    The easy solution is a voltage divider.

    The better solution is an Op-Amp.

    Both are available with examples on Wikipedia.

  3. #3
    Fusion Brain Creator 2k1Toaster's Avatar
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    Mar 2006
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    I dont understand your software question...
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  4. #4
    Fusion Brain Creator
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    Quote Originally Posted by 2k1Toaster View Post
    I dont understand your software question...
    i think he wants to know how to scale voltage inputs

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