from machine import Pin
from utime import sleep

# Pin Configurations
red_pin = Pin(4, Pin.OUT)  # RED_LED
green_pin = Pin(2, Pin.OUT)  # GREEN_LED
blue_pin = Pin(5, Pin.OUT)  # BLUE_LED

dp1_pin = Pin(17, Pin.IN, Pin.PULL_DOWN)  # DIP Switch 1 
dp2_pin = Pin(18, Pin.IN, Pin.PULL_DOWN)  # DIP Switch 2 
dp3_pin = Pin(19, Pin.IN, Pin.PULL_DOWN)  # DIP Switch 3

# Subroutines for RGB LED control
def led_off():
    red_pin.value(0)
    green_pin.value(0)
    blue_pin.value(0)

def led_red():
    red_pin.value(0)
    green_pin.value(1)
    blue_pin.value(1)

def led_green():
    red_pin.value(1)
    green_pin.value(0)
    blue_pin.value(1)

def led_blue():
    red_pin.value(1)
    green_pin.value(1)
    blue_pin.value(0)

# Main routine
def main():
    while True:
        # Read DIP switch states
        dp1_state = dp1_pin.value()
        dp2_state = dp2_pin.value()
        dp3_state = dp3_pin.value()

        # Default state: RGB LED OFF
        if dp1_state == 0 and dp2_state == 0 and dp3_state == 0:
            led_off()

        # Condition 1: DP1 pushed, DP2 released, DP3 pushed
        elif dp1_state == 1 and dp2_state == 0 and dp3_state == 1:
            led_red()

        # Condition 2: DP1 released, DP2 pushed, DP3 pushed
        elif dp1_state == 0 and dp2_state == 1 and dp3_state == 1:
            led_green()

        # Condition 3: DP1 and DP2 pushed, DP3 released
        elif dp1_state == 1 and dp2_state == 1 and dp3_state == 0:
            led_blue()

        # Short delay to stabilize readings
        sleep(0.1)

# Run the program
main()