from time import sleep
from machine import Pin
SWTR=Pin(3,Pin.IN,Pin.PULL_DOWN)
SWTG=Pin(4,Pin.IN,Pin.PULL_DOWN)
SWTB=Pin(5,Pin.IN,Pin.PULL_DOWN)
red=Pin(2,Pin.OUT)
green=Pin(3,Pin.OUT)
blue=Pin(4,Pin.OUT)
while True:
    v1=SWTR.value()
    v2=SWTG.value()
    v3=SWTB.value()
    if(v1==1):
        red.on()
        sleep(0.1)
    elif(v2==1):
        green.on()
        sleep(0.1)
    elif(v3=1):
        blue.on()
        sleep(0.1)