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Resistor needed? #5

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arpruss opened this issue Dec 28, 2022 · 2 comments
Open

Resistor needed? #5

arpruss opened this issue Dec 28, 2022 · 2 comments

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@arpruss
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arpruss commented Dec 28, 2022

Is the pull-up resistor actually needed? The web says that the NGC controller has a 745 ohm pull-up already.
@brownan
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brownan commented Dec 28, 2022

huh, maybe not. I had assumed that either the controller or console side was responsible for pulling the data line high, and so the arduino would have that responsibility for one side of the connection (either console-arduino, or arduino-controller). I'm not sure I tried it without.

@arpruss
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arpruss commented Dec 29, 2022

It's interesting. I just tried it without the external resistor in one of my projects and it didn't work well (it connected once or twice but unreliably and disconnected).

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@brownan @arpruss