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Topic: I2C Display (Read 4057 times) previous topic - next topic


I didnĀ“t know you needed external ones also in the case you have internal ones.


Sep 28, 2009, 09:30 pm Last Edit: Sep 28, 2009, 09:31 pm by DKJones96 Reason: 1
I'll end up using the external resistors anyway as a just in case.

The library you linked to is the one I'm using, I honestly have no idea why I was having so much trouble with this thing. It was discouraging to say the least.


Do external pull-ups affect speed of I2C communications at all? I've had it running successfully at 300KHz with no external pull-ups, but that was over a 4-inch run of wire.

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