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Digital Potentiometer - 10K

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  • SparkFun COM-10613 | Digital Potentiometer - 10K - Image 1 | Proto-PIC.co.uk
£1.30 (inc VAT) £1.08 (exc VAT)
SKU:
PPCOM-10613
Weight:
0.5 Grams
Availability:

4 In Stock For Immediate Despatch A further 170 can be available within 3-5 working days

 Product Reviews

  1. Hope this helps someone

    Posted by on

    #Picaxe 20X2
    #No_Data
    #No_Table
    #Terminal 9600


    ' Demo
    ' Controlling the Digital Potentiometer MCP4131
    ' Using the Picaxe 20X2



    SYMBOL CS = C.5 ; chip select pin is tied high
    SYMBOL channel = b0 ; range 0 to 3
    SYMBOL setting = b1 ; range 0 to 255
    SYMBOL index = b2


    channel = %00000010 ; need to get the channel into top 2 bits of byte for MSB_First
    setting = %00000000


    hspisetup spimode00, spifast


    main:

    ' get brighter
    FOR index = 60 TO 130
    setting = index
    pause 5
    gosub Send_data
    NEXT

    ' get dimmer
    FOR index = 130 TO 60 step -1
    setting = index
    pause 5
    gosub Send_data
    NEXT

    goto main




    Send_data:
    low CS ; enable chip select
    hspiout (channel, setting) ;
    high CS ; disable chip select
    return


 Product Description

This digital pentiometer wires up just like a normal potentiometer but allows you to use serial signals to "turn the knob". Another handy feature of digital potentiometers is that becuase they aren't controlled mechanically, they don't have a pre-determined sweep profile. In other words, depending on the way you write your code the potentiometer can 'sweep' in a linear fashion, a logarithmic fashion, or according to any other profile you like.

Documents:


 Other Details

Brand and Part Number:
SparkFun COM-10613 Digital Potentiometer - 10K
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