luat平台看门狗电路设计指南，能够使用硬件方式保证air200模块运行的稳定性。(Luat platform watchdog circuit design guide, can use hardware to ensure the stability of air200 module operation.)

基于氦氪云平台的主控方案，三路控制LED(Based on the main control scheme of helium krypton cloud platform, three way control LED)

功能电路的连接图，仿真平台protues，适合初学的人(A connection diagram of a functional circuit, a simulation platform Protues, suitable for a beginner.)