Introduction - If you have any usage issues, please Google them yourself
DIY single lamp used tokens- button STC15L104E single-chip computer and battery LED and binary pseudo random number produced by the PHP server-side dynamic password authentication system, the validation process has nothing to do with the time function, proves successful, it can display keystrokes.
Simple, with CR2032 button batteries can standby for years or so, practical strong, the cost can be made within 3 yuan is successful, the global first!
Software side respectively made of yi language, and PHP verification system, the hardware comprised Keil compiler singlechip procedures, to burn write to any type of MCS- 51 MCU instruction set, easy language compiled misreported is normal!