Usage of Micropython Tpyboard i²c

First look at the basic usage:

 From pyb import i²ci²c = i²c (1) # Create on bus 1i²c = i²c (1, I²c. Master) # Create and Init as a masterI2c.init (i²c. Master, baudrate=20000) # init as a masterI2c.init (i²c. SLAVE, addr=0x42) # init as a SLAVE with given addressI2c.deinit () # Turn off the peripheralI2c.init (i²c. MASTER)i2c.send (' 123 ', 0x42) # Send 3 bytes to slave with address 0x42I2c.send (b ' 456 ', addr=0x42) # keyword for addressI2c.is_ready (0x42) # check if slave 0x42 is readyI2c.scan () # Scan for slaves on the bus, returning# A list of valid addressesI2c.mem_read (3, 0x42, 2) # Read 3 bytes from memory of slave 0x42,# starting at address 2 in the slavei2c.mem_write (' abc ', 0x42, 2, timeout=1000) # write ' abc ' (3 bytes) to memory of slave 0x42# starting at address 2 in the slave, timeout after 1 second   usage of i²c: class Pyb. I²c (bus, ...)serial number of the BUS,I2C busi2c.deinit (), remove the I²C definitioni2c.init (Mode, *, addr=0x12, baudrate=400000, Gencall=false), initializingmode, it can only be i²c. MASTER or I²c. SLAVEaddr,7-bit i²c addressbaudrate, Clock frequencyGencall, universal invocation modeI2c.is_ready (addr), detects if I²c device responds, only valid for main modei2c.mem_read (data, addr, memaddr, *, timeout=5000, addr_size=8), readingdata, Integer, or cacheaddr, device addressmemaddr, memory addressTimeout , read wait time-outthe size of the addr_size,memaddr. 8-bit or 16-biti2c.mem_write (data, addr, memaddr, *, timeout=5000, addr_size=8), write to, parameter meaning ibid .i2c.recv (recv, addr=0x00, *, timeout=5000), reading data from the busrecv, the amount of data that needs to be read, or the bufferADDR,I2C AddressTimeout , time-outi2c.send (send, addr=0x00, *, timeout=5000)send, Integer, or bufferADDR,I2C AddressTimeout , time-outI2c.scan (), search for devices on the I²c bus.

Usage of Micropython Tpyboard i²c