【ART-Pi】ART-Pi smart switch expansion board +677952A

1. ART-Pi development board

2. ART-Pi interface

3. Hardware:

3.1 Connect to the Alibaba Cloud Life IoT Platform through the ART-Pi development board's built-in WIFI.

3.2 DHT11 collects indoor temperature and transmits it to the living Internet of Things platform.

3.3 A relay controls a light bulb at home, and the mobile APP is used to switch the light bulb on and off.

3.4 One relay is ready to be connected to a socket to realize the switch of the socket, and then connect the water dispenser at home to the socket and control it through the mobile APP.

3.5 OLED displays the current time, indoor temperature and humidity and switch status in real time

3.6 4 buttons to control different functions

3.7 3 LEDs: LED5, LED6, LED7

4. Other functions: 4.1 CH340 serial communication

4.2 DS1302: Precise timing

4.3 Three RGB lights: LED8, LED9, LED10

4.4 Other interfaces: Bluetooth interface (Bluetooth communication), MPU6050 interface, light strip interface, I2C interface 5. Hardware planning DHT11:

采集温湿度模块，通过编程可采集室内温湿度。超快响应、抗干扰能力强、性价比高，体积小功耗低，操作简单。

0.96-inch OLED:

显示温湿度和灯泡、插座的状态，观感更强。体积小，显示效果好，显示内容多，IIC通信，通信接口少，通信简单。

Active buzzer:

可作为配置模块信息的提示。

Two-way relay:

连接家用电器的接口，通过小电压设备控制大电压设备。选择5V的继电器，电压使用范围合适。

Three programmable LEDs and three power indicators:

    3个可编程LED可以作为调试程序的指示。

4 independent buttons:

    独立按键可用于实现智能配网的按键，烧写三元组的按键，控制继电器开关的按键，也可用于调试程序使用。

USB interface:

    USB接口采用micro-usb，采用安卓数据线接口，是使用最广的接口之一，不用购买额外的数据线。

ULN2003:

    驱动继电器，一个芯片可以驱动好几路继电器，接线简单，而且非常的便宜。