SunFounder Thales Kit, Manual

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SunFounder Thales Kit for Raspberry Pi Pico, Release 1.0
What more?
We can randomly generate colors and make a colorful flowing light.
import machine
from ws2812 import WS2812
import utime
import urandom
ws = WS2812(machine . Pin( 0 ), 8 )
def flowing_light ():
for i in range ( 7 , 0 , - 1 ):
ws[i] = ws[i - 1 ]
ws[ 0 ] = int (urandom . uniform( 0 , 0xFFFFFF ))
ws . write()
utime . sleep_ms( 80 )
while True :
flowing_light()
print (ws[ 0 ])
3.5 MicroPython Basic Syntax
3.5.1 Indentation
Indentation refers to the spaces at the beginning of a code line. Like standard Python programs, MicroPython programs
usually run from top to bottom: It traverses each line in turn, runs it in the interpreter, and then continues to the next
line, Just like you type them line by line in the Shell. A program that just browses the instruction list line by line is
not very smart, though – so MicroPython, just like Python, has its own method to control the sequence of its program
execution: indentation.
You must put at least one space before print(), otherwise an error message “Invalid syntax” will appear. It is usually
recommended to standardise spaces by pressing the Tab key uniformly.
if 8 > 5 :
print ( "Eight is greater than Five!" )
>>> %Run -c $EDITOR_CONTENT
Traceback (most recent call last):
File "<stdin>", line 2
SyntaxError: invalid syntax
You must use the same number of spaces in the same block of code, or Python will give you an error.
if 8 > 5 :
print ( "Eight is greater than Five!" )
print ( "Eight is greater than Five" )
>>> %Run -c $EDITOR_CONTENT
Traceback (most recent call last):
File "<stdin>", line 2
SyntaxError: invalid syntax
3.5. MicroPython Basic Syntax 109