Basic Physics
Reference: https://www.bilibili.com/video/BV1AM411t7Nc/?spm_id_from=333.999.0.0&vd_source=00bd76f9d6dc090461cddd9f0deb2d51
Pulse signal sent by pressing a button once
press hold
The repetition code will be sent directly, no need to send the address and data code, and the time will be delayed
High-frequency pulses enable complex improvements
It's actually an improvement on the diodes that receive infrared .
Improved comparison of pulses before and after a frame
It can be seen from the figure that in addition to modifying the initial high-frequency pulse to low level , the multi-pulse of high and low logic is also modified to a pulse with different intervals
