1. Project requirements

Design a switch that can be controlled through mobile phone APP and human body induction.

2. Product demand

**Hardware:**, WIFI control, WS2812, human body sensing, ambient light measurement, temperature and humidity, power measurement, gesture switch

**Embedded:** Respond to the instructions of the WIFI module to perform corresponding actions and control the WIFI module to enter the corresponding state.

**Mobile APP: **Use BlinkerAPP for services, which can provide relay switching, infrared emission control, and WS2812 dimming

**Power supply: **USB+220V to 5V module dual power supply.

**Voice Assistant:** Able to use Xiaoai classmates for voice control.

3. Hardware planning

1. Choose Lichuang EDA ( www.lceda.cn) as the EDA tool .

2. Choose ESP8266 as the main control chip and Arduino as the development environment.

3. A USB to TTL converter is designed on the board to burn code into the microcontroller. The model is CH340E, national good core, strong and durable.

4. The lamp beads are WS2812, and the color and brightness are easily adjustable.

5. The current transformer uses ZMCT103 high-precision current transformer to measure the approximate power.

6. Others: 220V to 5V module, buzzer, infrared transmitter, DHT11