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Overall system design(Remote control of Relays)

HW design: STC15F2K60S2(8051) + W5500  

Conclusion:

This article proposes a relay remote control scheme based on STC15F2K60S2+W5500, and provides detailed circuit diagrams of each circuit module and the main program flow chart of the microcontroller. Through the network, the relay can be remotely controlled, and then the relay can control other equipment to achieve remote control of the equipment. In applications where a large number of devices require remote control, the number of relays can also be increased according to the above design scheme. This solution works reliably, has high network security, and is cost-effective. It has good application prospects in smart buildings, smart homes and other fields.