Materials
Steps
MicroPython has provided rich functions to deal with time and delay, here are some examples.
Copy and paste the following code line by line into REPL to see its effect.
import time
time.sleep(1) # sleep for 1 second
time.sleep_ms(500) # sleep for 500 milliseconds
time.sleep_us(10) # sleep for 10 microseconds
start = time.ticks_ms() # get millisecond counter