Controlblock: current-limiting resistor for LED needed?

Home Forums RetroPie Project GPIO Adapter, ControlBlock etc. Controlblock: current-limiting resistor for LED needed?

This topic contains 1 reply, has 2 voices, and was last updated by Profile photo of petrockblog petrockblog 1 year, 9 months ago.

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  • #105778
    Profile photo of derryx
    derryx
    Participant

    Hi!

    Do I need to add a current-limiting resistor for the LED to work? Or just the LED?

    CU
    Thomas

    #106706
    Profile photo of petrockblog
    petrockblog
    Keymaster

    TO be on a safer side you can add a 220R resistor. However, it is not absolutely needed from what I have experiences so far.
    The current revision of the ControlBlock does not come with a series resistor for the LED, but this will change with an upcoming revision.

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