#ex1: feu de circulation
from machine import Pin
from utime import sleep
from picozero import Speaker
ledR = Pin(1, Pin.OUT)
ledJ =Pin(2,Pin.OUT)
ledV =Pin(3,Pin.OUT)
Buzzer = Speaker(27)
while True:
  ledR.on(); Buzzer.on()
  ledJ.off()
  ledV.off()
  sleep(5)
  ledR.off() ; Buzzer.off()
  ledJ.on()
  sleep(1)
  ledJ.off()
  ledV.on()
  sleep(6)
  for i in range(10):
    ledJ.toggle()
    sleep(0.2)