# Project 2: Controlling a LED with a push button

import network
from machine import Pin
import utime

# Create a function to send data when a button is pressed (optional)
red_button_pin = Pin(33, Pin.IN)
yellow_button_pin = Pin(32, Pin.IN)
green_button_pin = Pin(35, Pin.IN)
blue_button_pin = Pin(34, Pin.IN)
sw_button_pin = Pin(25, Pin.IN) # Operation mode: Normal or DR

red_led = Pin(5, Pin.OUT)    
yellow_led = Pin(18, Pin.OUT)    
green_led = Pin(19, Pin.OUT)    
blue_led = Pin(21, Pin.OUT)    

last_red_button_state = 0  # Assuming the button is not pressed initially
last_yellow_button_state = 0  # Assuming the button is not pressed initially
last_green_button_state = 0  # Assuming the button is not pressed initially
last_blue_button_state = 0  # Assuming the button is not pressed initially

print("started")

while True:
    # update the leds state
    red_led_state = red_led.value()
    yellow_led_state = yellow_led.value()
    green_led_state = green_led.value()
    blue_led_state = blue_led.value()
   
    # update the buttons state
    current_red_button_state = red_button_pin.value()
    current_yellow_button_state = yellow_button_pin.value()
    current_green_button_state = green_button_pin.value()
    current_blue_button_state = blue_button_pin.value()
       
    if current_red_button_state != last_red_button_state:                
        if red_led_state == 0 and current_red_button_state == 1:            
            red_led.on()
            print("Red LED On")                               
        elif red_led_state == 1 and current_red_button_state == 1:            
            red_led.off()
            print("Red LED Off")                                                        
        red_led_state = red_led.value()           
    # Update the last button state
        last_red_button_state = current_red_button_state        
    
    if current_yellow_button_state != last_yellow_button_state:                
        if yellow_led_state == 0 and current_yellow_button_state == 1:            
            yellow_led.on()
            print("Yellow LED On")                               
        elif yellow_led_state == 1 and current_yellow_button_state == 1:            
            yellow_led.off()
            print("Yellow LED Off")                                                        
        yellow_led_state = yellow_led.value()           
    # Update the last button state
        last_yellow_button_state = current_yellow_button_state      

    if current_green_button_state != last_green_button_state:                
        if green_led_state == 0 and current_green_button_state == 1:            
            green_led.on()
            print("Green LED On")                               
        elif green_led_state == 1 and current_green_button_state == 1:            
            green_led.off()
            print("Green LED Off")                                                        
        green_led_state = green_led.value()
    # Update the last button state
        last_green_button_state = current_green_button_state      

    if current_blue_button_state != last_blue_button_state:                
        if blue_led_state == 0 and current_blue_button_state == 1:            
            blue_led.on()
            print("Blue LED On")                               
        elif blue_led_state == 1 and current_blue_button_state == 1:            
            blue_led.off()
            print("Bue LED Off")                                                        
        blue_led_state = blue_led.value()
    # Update the last button state
        last_blue_button_state = current_blue_button_state