from machine import SPI, Pin
import time

# Example of setting up the SPI port to transmit data at 400kHz

spi = SPI(0, baudrate=400_000,polarity=0,phase=0,bits=8,sck=2,mosi=3,miso=4)
#spi.init(baudrate = 400000, pins=(2,3,4))

                                        # Depending on the use case, extra parameters may be required
                                        # to select the bus characteristics and/or pins to use.
cs = Pin(4, mode=Pin.OUT, value=1)      # Create chip-select on pin 4.
X = bytearray([0x0F])


print('Starting')
while(True):
    for x in range(0,255):
        cs(0)            
        spi.write(X)
        cs(1)
        time.sleep(0.1)