Code length: 32 bits Carrier: 37.5kHz +--------------------------------+ Header: | | + +----------------+.. 16T (8800us) 8T (4400us) +--+ 1 is coded: | | + +------+.. T 3T +--+ 0 is coded: | | ..+ +--+.. T T T = 550us +--+ | | After the last bit a ( ..+ + ) is transmitted to terminate the last bit. T Space between transmissions = 40ms For more information please read the documentation.