555 is widely used, such as timing, timing, delay, automatic control, anti-theft, waveform generator, speed regulation, electric energy measurement and many other fields. The alternative application is the application of pet automatic cooking, and there are many novel applications, such as high-end smart devices and smart homes in the community. 555 is a combination of digital and analog, so the equipment using 555 in many aspects of intelligence is relatively high-grade. First of all, the input-output compatibility of the equipment using 555 is almost negligible, because both analog and digital 555 are acceptable, so there is no waste of resources caused by replacing old equipment. The input and output range of 555 can also be all-inclusive, and its anti-interference ability is incomparable to ordinary so-called high-intelligence devices. Of course, 555 is only a substitute for the bridge module of input and output in these intelligent devices, and will not replace the hardware of other devices. This is because although the 555 has super expansibility, its function limits the intervention and matching of input devices. Let's give a simple example: the experimental high-intelligence community in Xinjiang Gaoxincheng adopts B-XJ-4482 intelligent central control system, and the water, electricity, heating, anti-theft, monitoring, domestic power distribution, network disconnection, parking spaces, household conditions and night patrol in Building 12 are all unattended. Users only need to check in with their cards, and all cards are used for access control, delivery payment and 5 fee settlement. The previous equipment in the community can be directly plugged in without replacement. Don't underestimate this bridge module. When a fire occurs, the peripheral module box can also find the fire itself and connect and decouple (fire fighting linkage). Without the 555 module, many devices can't get involved. 555 bridge module is the only application selected from more than 200 integrated circuits. Of course, the main reason is that the price is the lowest among all alternative integrations. If you write a paper, you'd better define 555 as a relatively high-end occasion, such as fully intelligent solar+wind street lamps, which are controlled by 555+40 17, and the light control is dusty. In this case, if you succeed, you can not only pass the paper, but also push the invention to the market. Street lamps on the market are basically clock-controlled, and they often make mistakes, while 555 lamps don't. Because of the low cost, they are all single lamps.