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32 lines
518 B
Plaintext
32 lines
518 B
Plaintext
I2C - Software Addressed Protocol
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Clocked Protocol
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Pins: SDA = Serial Data
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SCL = Serial Clock
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Speeds up to 400Khz, 1 Mhz
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SPI - Serial Protocol Interface
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Hardware Addressed Protocol
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Clocked Protocol
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Pins: MOSI (Master Out Slave In)
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MISO (Master In Slave Out)
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SCL Serial Clock
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SS or nCS (Slave Select or not Chip Select)
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Up to 20Mhz
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USART Two Wire, Non Clocked Protocol
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Pins:
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TX: Transmit
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RX: Receive
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Baudrate = bits per second (sorta)
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frequency = 100 / 1 time in seconds
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9600
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115200
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38400
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