import wiringpi as wpi
import time
wpi.wiringPiSetupGpio() # GPIO numerointi



wpi.pinMode(16,1)       # GPIO 16 as output
wpi.digitalWrite(1,1)   # GPIO 16 -> HIGH
wpi.digitalRead(16)     # Status of GPIO 16
wpi.pinMode(20,1)       # GPIO 16 as output
wpi.digitalWrite(1,1)   # GPIO 16 -> HIGH
wpi.digitalRead(20)     # Status of GPIO 16
wpi.pinMode(21,1)       # GPIO 16 as output
wpi.digitalWrite(1,1)   # GPIO 16 -> HIGH
wpi.digitalRead(21)     # Status of GPIO 16

time.sleep(2)