Quote:
Originally Posted by kaffer
bebek: None of the I2C boards I've seen have pullups on the SCL/SDA lines. That makes sense as they are just slave boards, it would make sense to leave pullups to bus master.
idrougge: Supports ADF and HFE, read and write.
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You can see 2 4.7k resistors close to 16 pin of IC. These are pull ups for SDA/scl lines.