import time 
from smbus import SMBus
 
addr = 0x8 # bus address
bus = SMBus(1) # indicates /dev/ic2-1
 
def gasventile(zeit):
        bus.write_byte(addr, 86) # send V 
        time.sleep(zeit)
        bus.write_byte(addr, 118)  # send v
        time.sleep(0.1)

if __name__ == "__main__":
        gasventile(15);
        print("Gas Ventile opend 1s")
        # Tur Fan on 
        time.sleep(1)