储物柜工业控制，包含电子锁控制，身份证ID读取-Lockers industrial controls, including electronic lock control, ID card reading

快递柜锁控板的原理图，采用ALTIUM DESIGNER设计(The schematic diagram of the lock control panel of the express cabinet is designed by using ALTIUM DESIGNER)

一种设计数字锁相环的思路，包含异或鉴相器、k模可逆计数器、脉冲加减计数器、N分频器等，实现相位的锁定。(A design of digital phase locked loop (PLL) consists of a phase discriminator, a K mode reversible counter, a pulse addition and subtraction counter, a N frequency divider and so on, to lock the pha

能够通过LoRa将智能门锁与网关进行通信，可在后台查看门锁状态，实现智能开锁(Through LoRa, the intelligent door lock can communicate with the gateway, and the status of the door lock can be checked in the background to realize the intelligent unlocking.)