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Orange Pi internal pull up resistors problem

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Post time 2017-11-15 15:49:59 | Show all posts |Read mode
Hello.  I use several input boards (optocouplers) working perfectly with Raspberry Pi, but they do not work with Orange Pi One.
The problem is the internal pull up resistor. Raspberry Pi has 50K omhs, Orange Pi apparently has much lower internal resistors.
Does anybody know how much is for Orange Pi One, and if lower, why?


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