I2C Protocol
I2C is a two-wire synchronous bus, SDA for data and SCL for clock, where open-drain drivers plus shared pull-up resistors let many devices share the lines and clock-stretch. A controller frames every transfer with start and stop conditions and each byte is acknowledged, giving multi-device communication over just two pins at the cost of speed.
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I2C is a two-wire synchronous bus, SDA for data and SCL for clock, where open-drain drivers plus shared pull-up resistors let many devices share the lines and clock-stretch. A controller frames every transfer with start and stop conditions and each byte is acknowledged, giving multi-device communication over just two pins at the cost of speed.
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