import time
time.sleep(0.1) # Wait for USB to become ready

print("Hello, Pi Pico!")
from machine import Pin
from neopixel import NeoPixel

table=((1,1,0,0,0,0,0,0),(0,0,1,1,0,0,0,0),
       (0,0,0,0,1,1,0,0),(0,0,0,0,0,1,1,1))
pin1= Pin(22, Pin.OUT)   # set GPIO0 to output to drive NeoPixels
np1 = NeoPixel(pin1,8)   # create NeoPixel driver on GPIO0 for 8 pixels
for i in range(8):
    np1[i] = (255, 255, 255)
np1.write()   
while True:    
    for i in range(4):
        for j in range(8):
            if table[i][j]==1:
                np1[j] = (0, 0, 255)
            else:
                np1[j] = (255, 255, 255)
            np1.write() 
        time.sleep(0.3)