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![I2C bus and level shifting - Getting Started with Python for the Internet of Things [Book]](https://www.oreilly.com/api/v2/epubs/9781838555795/files/assets/11df565b-2693-41b3-a66f-6bd9b04650f1.png "I2C bus and level shifting - Getting Started with Python for the Internet of Things [Book]")
I2C bus and level shifting - Getting Started with Python for the Internet of Things [Book]
Internal pull-up resistors are insufficient for I2C
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I2C pull up resistance, rise time and bus capacitance discussion
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