import mapper
from random import randint
dev = mapper.device( "test_sender" )
sensor1_voltage = dev.add_output( "/sensor1", 1, 'i', "V", 0, 1000 )
v1 = 0
while 1:
    dev.poll( 50 )
    v1 +=1
    if v1 > 1000:
        v1 = 0
    print v1
    sensor1_voltage.update( v1 )