Home environment intelligent control system

蓝雨夜

Home environment intelligent control system [Copy link]

Introduction

It can realize the intelligent control system of home environment. It can drive TFT LCD display through GD32F350 and touch control to centralize the lighting equipment in the home, fresh air (exhaust), dehumidification, lighting and other various needs of our family life for the environment. It can also join the WIFI network to realize the remote monitoring of the operation status and parameters of the control system.

I. System structure diagram

Design document source code

蓝雨夜

System Description: GD32F350 is used to implement this project. GD32F350 reads the temperature and humidity sensor HDC1080 on the bus through the I2C bus, and then uses SPI+ADC to realize the TFT display touch human-machine interface and display environmental parameters. At the same time, the WIFI network and parameters, real-time clock, control mode, and environmental temperature and humidity control and adjustment functions are set through the USART serial port.

I.Functional Description and Analysis

1.Human-machine interface description:

Power-on main interface:

0)]

A. Press Control view to enter the temperature, humidity, and acquisition control functions.

0)]

The upper picture is automatic mode, the lower picture is manual mode

B. Press Network settings on the main interface to enter the WIFI network settings. Touch the corresponding parameter to enter the parameter input window.

Modify router SSID;

Modify router password;

Modify cloud platform IP;

C. Press Peripheral Demo on the main interface to enter GD32F350 peripheral control

0)]

D. Remote login to OneNet cloud platform

You can see the current sensor temperature and humidity values, and display the set values and dynamic trend charts

蓝雨夜

1. Hardware Design

A. Front view: All the devices are connected to the GD32F350 board by using the experimental board + pins. The peripherals need 3.3V and 5V to 3.3V (LDO) converted.

B. The reverse side

3.Functional analysis

ADisplay part

In order to have a friendly human-machine interface design, color LCD module is resolutely adopted. Parallel TFTLCD will occupy the function pins of other peripherals. Therefore, TFT LCD with SPI serial port and 2-way ADC can be selected to realize human-machine interface with different touch interfaces.

LCD only occupies the clock and data pins of SPI, and the other pins of SPI are used as ordinary GPIO in conjunction with SPI.

LCD bottom-level driverInitialization

Then send the data

See the source code for details

B.Touch part

Schematic diagram

383173[/attach]

Working principle:

When collecting the X-axis, the two feet of the Y-axis are brought up and down. When there is a touch, the X-axis is connected to the resistance of the Y-axis. Different positions collect different voltages.

When collecting the Y-axis, the two feet of the X-axis are brought up and down. When there is a touch, the Y-axis is connected to the resistance of the X-axis. Different positions collect different voltages.

ADC initialization program

C.Environmental parameter collection

In life, temperature is the easiest thing for the human body to feel, and humidity is very important to human health

So here we use an integrated temperature and humidity sensor HDC1080, and the simple I2C interface can realize the reading of environmental parameters.

Initialize the I2C0 interface of GD32F350

D. WIFI module connects to the network

In order to send environmental parameters to the remote cloud platform, the existing E103-W01 with ESP8266 is used here. 0]GD32F350 sends AT commands through USART1 to configure E103-W01

Set up the router

With the cloudData exchange between platforms

D.GUIDesign

I transplanted grlib to realize the human-computer interface I need

E.LEDLight control

Use the PWM function of TIMER2 of GD32F350 to realize 4-channel PWM output

III.Summary

After so many days of learning and using GD32F350, I feel that it is quite good. It has rich resources and high main frequency. It is good for making small-sized color touch HMI.

GD32F350 has rich resources and sufficient peripherals, and can be easily used through official examples. Convenient and easy to use

Fourth,Demonstration video

See attachment for details

Five,Source code

For details, please see the attachment on the first floor

Fourth, Demonstration video

See attachment for details

Five, Source code

See attachment on the first floor for details

Fourth, Demonstration video

See attachment for details

Five, Source code

See attachment on the first floor for details

swustlx86

蓝雨夜

Demo video, no commentary

剑蓝

study

nmg

Attached to the judges' supplementary materials:

Blue Rainy Night	The first step to get the GD350 development board	Click to view
Blue Rainy Night	GD350 Development Board Connected to the Cloud Platform	Click to view
Blue Rainy Night	GD32F350 development board adds HMI (TFT touch LCD)	Click to view
Blue Rainy Night	GD32F350 development board adds PWM dimming	Click to view