Introduction - If you have any usage issues, please Google them yourself
1. Designed one, learn the principles of serial communication and applications. 2, understanding the characteristics of asynchronous serial communication. 3, enhance practical ability and capacity to integrate theory with practice. Second, the design of tasks and requirements to design and produce a infrared remote control using an electronic password lock, requirements are as follows: 1, can realize remote control unlock, remote control distance of 8 ~ 10m. 2, have to change my password, encryption and strong anti-interference ability. Expansion of functions: one, the password input error can be reported to the police. 2, to achieve the local keyboard lock.三. System Components Diagram