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Python-PyQt5-Arduino-LCD:打造你的个性化智能显示屏

  • 2026-06-28 21:57:41
Python-PyQt5-Arduino-LCD:打造你的个性化智能显示屏

本文将深入探讨如何利用Python的PyQt5库和Arduino,结合LCD显示屏,构建一个个性化的智能显示屏系统。我们将从基础知识开始,逐步讲解如何使用Python发送指令控制Arduino,并最终实现对LCD显示屏的实时文本和动画控制。

1. 项目概述

这个项目旨在通过Python-PyQt5-Arduino-LCD的组合,实现一个功能强大的智能显示屏系统。用户可以通过Python界面发送文本信息和动画指令,这些指令将通过串口通信传输至Arduino,最终控制连接在Arduino上的LCD显示屏。

2. 系统架构

整个系统可以分为三个主要部分:

  • • Python界面: 使用PyQt5库构建用户界面,提供文本输入框、动画选择按钮以及串口连接控制等功能。

  • • Arduino控制板或其他开发板: 负责接收来自Python的串口数据,解析指令并控制LCD显示屏。

  • • LCD显示屏: 用于显示来自Arduino的文本和动画内容。

3. 技术实现

3.1 Python界面开发

  • • PyQt5库: PyQt5是Python中用于构建图形用户界面的强大工具。它提供了丰富的控件和布局管理功能,方便我们快速开发界面。

  • • 串口通信: Python的serial库可以实现与Arduino的串口通信。通过serial.Serial对象,我们可以发送和接收串口数据。

3.2 Arduino代码编写

  • • 串口接收: Arduino使用Serial.read()函数接收来自Python的串口数据。

  • • 指令解析: Arduino代码需要解析接收到的数据,识别文本信息和动画指令。

  • • LCD控制: Arduino使用LCD库控制LCD显示屏,根据解析到的指令显示文本或动画。

3.3 代码示例

Python代码 (main.py):

import sysfrom PyQt5.QtWidgets import QApplication, QWidget, QLabel, QLineEdit, QPushButton, QVBoxLayoutfrom PyQt5.QtCore import QThread, pyqtSignalimport serialclassMainWindow(QWidget):def__init__(self):super().__init__()# 初始化串口        self.serial_port = serial.Serial('COM3'115200# 替换为你的串口号和波特率# 创建界面元素        self.label = QLabel("请输入文本:")        self.text_input = QLineEdit()        self.send_button = QPushButton("发送")        self.animation_button = QPushButton("动画")# 布局        layout = QVBoxLayout()        layout.addWidget(self.label)        layout.addWidget(self.text_input)        layout.addWidget(self.send_button)        layout.addWidget(self.animation_button)        self.setLayout(layout)# 连接信号槽        self.send_button.clicked.connect(self.send_text)        self.animation_button.clicked.connect(self.send_animation)defsend_text(self):        text = self.text_input.text()        self.serial_port.write(text.encode())defsend_animation(self):# 发送动画指令        self.serial_port.write("animation".encode())if __name__ == '__main__':    app = QApplication(sys.argv)    window = MainWindow()    window.show()    sys.exit(app.exec_())

Arduino代码 (arduino.ino):

#include<LiquidCrystal.h>// LCD引脚定义constint rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;LiquidCrystal lcd(rs, en, d4, d5, d6, d7);voidsetup() {  Serial.begin(115200);  lcd.begin(162); // 初始化LCD}voidloop() {if (Serial.available() > 0) {    String data = Serial.readStringUntil('\n');if (data.startsWith("animation")) {// 执行动画指令      lcd.setCursor(00);      lcd.print("动画");    } else {// 显示文本      lcd.setCursor(00);      lcd.print(data);    }  }}

4. 项目优势

  • • 灵活可定制: 用户可以自由输入文本,选择动画,打造个性化的显示内容。

  • • 实时控制: Python界面与Arduino实时通信,确保显示内容的及时更新。

  • • 应用广泛: 可用于信息展示、娱乐互动、智能家居等多个领域。

5. 未来展望

  • • 扩展功能: 可以添加更多动画效果、图形显示、数据可视化等功能。

  • • 云端连接: 将系统接入云平台,实现远程控制和数据同步。

  • • 硬件升级: 使用更高分辨率的LCD显示屏,提升显示效果。

总结

通过Python-PyQt5-Arduino-LCD的结合,我们可以轻松构建一个功能强大、灵活可定制的智能显示屏系统。该系统具有广泛的应用前景,可以为用户带来更加便捷、个性化的信息展示和互动体验。

项目地址:https://github.com/Filayeng/Python-PyQt5-Arduino-LCD-Control

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  1. CONNECT:[ UseTime:0.000679s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000728s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000307s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000271s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000480s ]
  6. SELECT * FROM `set` [ RunTime:0.000240s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000624s ]
  8. SELECT * FROM `article` WHERE `id` = 487019 LIMIT 1 [ RunTime:0.000646s ]
  9. UPDATE `article` SET `lasttime` = 1783058375 WHERE `id` = 487019 [ RunTime:0.020757s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000308s ]
  11. SELECT * FROM `article` WHERE `id` < 487019 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000557s ]
  12. SELECT * FROM `article` WHERE `id` > 487019 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006045s ]
  13. SELECT * FROM `article` WHERE `id` < 487019 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000694s ]
  14. SELECT * FROM `article` WHERE `id` < 487019 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002297s ]
  15. SELECT * FROM `article` WHERE `id` < 487019 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001045s ]
0.106837s