数字密码锁。猜按键顺序，猜正确一位，数码管提示数字加一，猜错一位，重头开始猜。全部正确，短蜂鸣三次；累积猜错AXWrongCount次，短蜂鸣两次，进入锁键盘状态，此时无法输入按键数码管显示dEly，888- 开始从PunishTime倒计时，罚时时间到后，蜂鸣器长鸣一声，返回按键输入状态。

附有Proteus仿真，经过多次升级，程序更加优化。此设计灵感来源于，密室逃脱九宫格解锁。此程序适用于此类解锁游戏，接口鲜明，易于在多种架构的单片机上移植。-Digital locks. Guess the key sequence, guess the correct one, plus a digital digital prompt, guessed a heavy head start guessing. All right, three short beeps　cumulative mistaken AXWrongCount times, two short beeps, enter the locked state of the keyboard, the keys can not be entered at this time digital display dEly, 888- starting PunishTime countdown time to time penalty after the beep is sounding cry, return key input state. Simulation with Proteus, after several upgrades, the program is more optimized. This design is inspired, Room Escape squared unlocked. This procedure applies to unlock these games, the interface clear and easy on a variety of architecture MCU transplant.