print("Traffic light system with ESP32")


#1.Import related libraries/modules
from time import sleep
from machine import Pin,softI2C
import ssd1306 

#2.Declare built in LED connection
red_led = machine.Pin(25, machine.Pin.OUT)
yellow_led = machine.Pin(26, machine.Pin.OUT)
green_led = machine.Pin(27, machine.Pin.OUT)

#declare pin on OLED display
i2c_oled = SoftI2C(scl=Pin(22), sda=Pin(21))
oled_width = 128 #based on spec
oled_height = 64 #based on spec
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c_oled)

#Program
def red():
  led_red.value(1)
  led_yellow.value(0)
  led_green.value(0)
def yellow():
  led_red.value(0)
  led_yellow.value(1)
  led_green.value(0)
def green():
  led_red.value(0)
  led_yellow.value(0)
  led_green.value(1)

def off():
  led_red.value(0)
  led_yellow.value(0)
  led_green.value(0)

  while true :
    red()
    oled.fill(0)
    oled.text("--STOP--",34,22)
    oled.show()
    print("--------------------START RED-------------------")
    a=10
    for i in range (10)
      print(a)
      a=a-1
      sleep(1)
    off()
    oled.fill(0)
    oled.text("care full",34,22)
    oled.show()
    print("---------------------CARE FULL------------------")

  yellow()
  b=3
  for i in range(3):
    print(b)
    b=b-1
    sleep(1)
  off()
  for i in range (5):
    yellow()
    sleep(0.2)
    off()
    sleep(0.2)

  green()
  oled.fill(0)
  oled.text("LETS GO!!",34,22)
  oled.show()
  print("----------------------HURRY!!!------------------")
  c=10
  for i in range(10):
    print(c)
    c=c-1
    sleep(1)