class UART - serial communication bus

Usage:

from ezblock import UART

# On Raspberry Pi and init later
uart = UART("/dev/serial0")        # create an UART object 
uart.init(9600)                    # uart init
uart.read(5)                       # read up 5 bytes

# On Ezblock One and init 
uart = UART(1, tx=25, rx=26, baudrate=115200)    # create an UART object 
buf = [1,3,5]
buf = bytearray(buf)
uart.write(buf)                                  # send a buf

Constructors

class ezblock.UART(device, tx=None, rx=None, baudrate=115200) Create an UART object. device: On Ezblock Pi, it’s the serial path, like: /dev/xxx(). On Ezblock One, it’s the uart id: 0, 1, 2 tx: pin of tx. rx: pin of rx

Methods

  • init - init the uart.

UART.init(baudrate)

  • read - read data.

UART.read(num)

  • write - send a buf of bytes.

UART.write(buf)