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Thread: plutp-P board encoder inputs

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  1. 04-21-2010, 05:41 PM #1
    visky
    visky is offline Registered
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    Question plutp-P board encoder inputs

    I have AMT102 encoders .They output max 5mA current TTL signals and nothing counts when i rotate encoder. Do i need to give pull up resistors for inputs?

    Any shematics for input signals will be wellcome
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  2. 04-21-2010, 06:16 PM #2
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    You shouldn't if it is TTL compatible, it depends on what you are driving in to?
    Try them on their own with a 2k PU resistor if necessary to test.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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  3. 04-23-2010, 07:44 PM #3
    visky
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    It works now. Problem has been in software
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