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@@ -172,4 +172,23 @@ b'rt-thread\r'
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>>> s.close()
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```
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+##### I2C
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+
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+```
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+>>> from machine import Pin, I2C
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+>>> clk = Pin(("clk", 43), Pin.OUT_OD) # Select the 43 pin device as the clock
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+>>> sda = Pin(("sda", 44), Pin.OUT_OD) # Select the 44 pin device as the data line
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+>>> i2c = I2C(-1, clk, sda, freq=100000) # create I2C peripheral at frequency of 100kHz
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+>>> i2c.scan() # scan for slaves, returning a list of 7-bit addresses
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+[81] # Decimal representation
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+>>> i2c.writeto(0x51, b'123') # write 3 bytes to slave with 7-bit address 42
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+3
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+>>> i2c.readfrom(0x51, 4) # read 4 bytes from slave with 7-bit address 42
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+b'X\x08\x105'
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+>>> i2c.readfrom_mem(0x51, 0x02, 1) # read 1 bytes from memory of slave 0x51(7-bit),
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+b'\x12' # starting at memory-address 8 in the slave
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+>>> i2c.writeto_mem(0x51, 2, b'\x10') # write 1 byte to memory of slave 42,
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+ # starting at address 2 in the slave
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+```
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+
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### Coming soon
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SummerGift