directory

1. Project Background

2. Project functions

3. Hardware design

With the continuous progress and development of intelligent electronic devices, it is inevitable to improve the utilization rate of intelligent devices, such as intelligent mobile devices, smart home and other devices develop very rapidly. As an information carrier of the Internet and communication network, the Internet of Things can make physical objects communicate with each other. In recent years, many smart home devices are designed and used based on the Internet of Things technology.

Though the Internet of things can make household equipment automation, intelligent management and system implementation, but still need to rely on more advanced terminal socket as a fundamental guarantee, the socket is all power equipment, household appliances need to use the socket of the orderly intelligent management, to realize the unification of the intelligent household equipment intelligent management plays a decisive role. Whether it is family life, or industrial manufacturing, socket in the life of the application of ubiquitous, worthy of the grid and electrical equipment between the bridge.

1. Project Background

Since the advent of smart socket has been widely concerned, domestic enterprises include: Millet, Haier, bull; Foreign enterprises including: Ottomate, Kimbel, OPSO and other large enterprises have joined the research of intelligent socket. Although domestic and foreign smart sockets have a high research heat, but the development of smart sockets at home and abroad are very different. Relative to the development of domestic smart socket, the development of foreign smart socket is more mature, and foreign consumers of smart socket recognition than domestic higher.

In addition, due to the impact of the epidemic, the shortage of upstream raw material supply, wafer foundry capacity and other reasons, many foreign semiconductor companies announced product price increases.

For example, in early 2021, the United States and Taiwan semiconductor issued a price increase notice

So recently in line with the “practice hand” mentality to do a domestic chip WiFi Internet of things smart socket.

Practical effect of smart socket

2. Project functions

This project is based on the domestic MCU of HUada Semiconductor to achieve power consumption collection, cloud data transmission and switch linkage control, as shown below:

Function mapping of smart socket

3. Hardware design

The core components of WiFi Internet of Things smart socket are all domestic chips, including microcontroller, AC 220V to DC 5V module, DC 5V to DC 3.3V module, DC 5V to DC 5V isolation module, WiFi communication module, relay module and power consumption acquisition module, as shown below:

The PCB effect of WiFi Internet of Things smart socket design is as follows:

Domestic MCU WiFi Internet of Things smart socket PCB effect picture

The project will be updated in the near future, please look forward to it