【开源工具】Python打造高颜值串口调试助手:支持自动收发+历史记录+多主题切换(附完整源码)
🚀【硬核实战】Python打造高颜值串口调试助手:支持自动收发+历史记录+多主题切换(附完整源码)
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📖 概述:为什么需要专业的串口调试工具?
在嵌入式开发、物联网设备调试过程中,串口通信是最基础的调试手段。但系统自带的串口工具功能简陋,商业软件又价格昂贵。本文将带你用Python+ttkbootstrap打造一款高颜值、多功能的串口调试助手,具备以下亮点功能:
核心功能亮点:
- 🎨 现代化UI界面 - 基于ttkbootstrap的多主题切换
- 📊 实时数据统计 - 发送/接收字节计数
- 🔄 自动发送功能 - 可配置间隔时间
- ⏳ 发送历史记录 - 支持上下箭头导航
- 📁 数据持久化 - 接收内容保存为文件
- 🔍 自动端口检测 - 实时监控串口热插拔
📚 目录
- 项目架构设计
- 环境配置指南
- 核心功能实现
- UI界面详解
- 运行效果展示
- 源码下载
- 总结与扩展
🏗 项目架构设计
1.1 技术栈选型
import serial # 串口通信核心库
import serial.tools.list_ports # 串口设备枚举
import threading # 多线程处理
import queue # 线程安全队列
import ttkbootstrap as ttk # 现代化UI框架
from tkinter import filedialog # 文件对话框
1.2 关键类说明
SerialTool
:主控制类,采用MVC设计模式- 数据层:
serial_port
管理物理连接 - 视图层:
create_widgets()
构建界面 - 控制层:事件处理方法群
- 数据层:
1.3 线程模型
定时轮询异步推送定时触发主线程接收队列接收子线程自动发送任务
🔧 环境配置指南
2.1 基础环境
# 必需库安装
pip install pyserial ttkbootstrap
2.2 硬件准备
- 任意USB转串口设备(如CH340、CP2102等)
- 开发板或目标设备
2.3 兼容性说明
- 支持Windows/macOS/Linux
- 测试Python版本:3.8+
⚙️ 核心功能实现
3.1 串口通信核心
def open_serial(self):# 参数映射转换parity_map = {'None': serial.PARITY_NONE,'Even': serial.PARITY_EVEN,# ...其他校验位映射}self.serial_port = serial.Serial(port=self.port_cb.get(),baudrate=int(self.baudrate_cb.get()),parity=parity_map[self.parity_cb.get()],timeout=0.1 # 非阻塞读取)
3.2 多线程数据处理
def receive_worker(self):while not self.receive_thread_event.is_set():try:# 非阻塞读取if self.serial_port.in_waiting > 0:data = self.serial_port.read(self.serial_port.in_waiting)self.receive_queue.put(data)except serial.SerialException:break
3.3 自动发送机制
def auto_send_task(self):if self.auto_send_flag:try:interval = int(self.interval_entry.get())self.send_data() # 执行发送self.master.after(interval, self.auto_send_task) # 定时循环except ValueError:self.auto_var.set(False)
🖥️ UI界面详解
4.1 三栏式布局
main_frame = ttk.Frame(self.master)
left_frame = ttk.Labelframe(main_frame, text="串口配置") # 左侧配置区
send_frame = ttk.Labelframe(right_frame, text="数据发送") # 右上发送区
recv_frame = ttk.Labelframe(right_frame, text="数据接收") # 右下接收区
4.2 主题切换实现
def change_theme(self):selected_theme = self.theme_cb.get()self.style.theme_use(selected_theme) # 动态切换主题
4.3 控件亮点功能
- 历史记录导航:通过
<Up>/<Down>
键遍历 - 智能滚动文本框:自动滚动到最新内容
- 状态栏提示:实时显示连接状态
🎥 运行效果展示
5.1 主题切换演示
5.2 数据收发演示
[2023-08-20 14:25:36] [Send] AT+GMR
[2023-08-20 14:25:36] AT version:2.1.0.0-dev
5.3 统计功能展示
发送: 2456 字节 | 接收: 18923 字节
📦 源码下载
import serial
import serial.tools.list_ports
import threading
import queue
import os
import time
import ttkbootstrap as ttk
from ttkbootstrap.constants import *
from ttkbootstrap.dialogs import Messagebox
from ttkbootstrap.scrolled import ScrolledText
from tkinter import BooleanVar, StringVar, IntVar
import platform
from tkinter import filedialog
import jsonclass SerialTool:def __init__(self, master):self.master = masterself.master.title("串口调试助手")self.master.geometry("900x520")self.master.resizable(False, False) # 禁止调整窗口大小self.master.update() # 强制应用尺寸限制# 初始化样式self.style = ttk.Style(theme='cosmo')# 配置边框线为纯黑色的样式self.style.configure('BlackBorder.TLabelframe', bordercolor='#D3D3D3', relief='solid', borderwidth=1)# 串口参数self.serial_port = Noneself.receive_queue = queue.Queue()self.auto_send_flag = Falseself.send_count = 0self.receive_count = 0self.receive_thread = Noneself.receive_thread_event = threading.Event() # 用于控制接收线程的事件# 发送历史记录self.send_history = []self.history_index = -1# 自动检测串口变化self.last_port_count = 0# 创建界面self.create_widgets()self.refresh_ports()self.master.after(100, self.process_queue)self.check_ports_change() # 开始检测串口变化def create_widgets(self):"""创建三栏式布局"""main_frame = ttk.Frame(self.master)main_frame.pack(fill=BOTH, expand=True, padx=10, pady=10)# 主题切换控件theme_frame = ttk.Frame(self.master)theme_frame.pack(fill=X, padx=10, pady=(0, 5))ttk.Label(theme_frame, text="主题:").pack(side=LEFT, padx=5)self.theme_cb = ttk.Combobox(theme_frame, values=sorted(ttk.Style().theme_names()),state='readonly')self.theme_cb.pack(side=LEFT, padx=5)self.theme_cb.set('cosmo')self.theme_cb.bind('<<ComboboxSelected>>', self.change_theme)# 左侧串口配置区left_frame = ttk.Labelframe(main_frame, text="串口配置", padding=15, style='BlackBorder.TLabelframe')left_frame.grid(row=0, column=0, sticky=NSEW, padx=5, pady=5)# 右侧上下分区right_frame = ttk.Frame(main_frame)right_frame.grid(row=0, column=1, sticky=NSEW, padx=5, pady=5)# 发送区(右上)send_frame = ttk.Labelframe(right_frame, text="数据发送", padding=15, style='BlackBorder.TLabelframe')send_frame.pack(fill=BOTH, expand=True, side=TOP)# 接收区(右下)recv_frame = ttk.Labelframe(right_frame, text="数据接收", padding=15, style='BlackBorder.TLabelframe')recv_frame.pack(fill=BOTH, expand=True, side=TOP)# 配置网格权重main_frame.columnconfigure(1, weight=1)main_frame.rowconfigure(0, weight=1)right_frame.rowconfigure(1, weight=1)# 创建各区域组件self.create_serial_controls(left_frame)self.create_send_controls(send_frame)self.create_recv_controls(recv_frame)# 状态栏self.status_var = StringVar(value="就绪")ttk.Label(self.master, textvariable=self.status_var,bootstyle=(SECONDARY, INVERSE)).pack(fill=X, side=BOTTOM)def change_theme(self, event=None):"""切换主题"""selected_theme = self.theme_cb.get()self.style.theme_use(selected_theme)def create_serial_controls(self, parent):"""串口参数控件"""param_frame = ttk.Frame(parent)param_frame.pack(fill=X)# 串口号ttk.Label(param_frame, text="COM端口:").grid(row=0, column=0, padx=5, pady=5, sticky=W)self.port_cb = ttk.Combobox(param_frame, width=15)self.port_cb.grid(row=0, column=1, padx=5, pady=5)# 波特率ttk.Label(param_frame, text="波特率:").grid(row=1, column=0, padx=5, pady=5, sticky=W)self.baudrate_cb = ttk.Combobox(param_frame, values=['9600', '115200', '57600', '38400','19200', '14400', '4800', '2400', '1200'], width=15)self.baudrate_cb.set('9600')self.baudrate_cb.grid(row=1, column=1, padx=5, pady=5)# 校验位ttk.Label(param_frame, text="校验位:").grid(row=2, column=0, padx=5, pady=5, sticky=W)self.parity_cb = ttk.Combobox(param_frame, values=['None', 'Even', 'Odd', 'Mark', 'Space'], width=15)self.parity_cb.set('None')self.parity_cb.grid(row=2, column=1, padx=5, pady=5)# 数据位ttk.Label(param_frame, text="数据位:").grid(row=3, column=0, padx=5, pady=5, sticky=W)self.databits_cb = ttk.Combobox(param_frame, values=['8', '7', '6', '5'], width=15)self.databits_cb.set('8')self.databits_cb.grid(row=3, column=1, padx=5, pady=5)# 停止位ttk.Label(param_frame, text="停止位:").grid(row=4, column=0, padx=5, pady=5, sticky=W)self.stopbits_cb = ttk.Combobox(param_frame, values=['1', '1.5', '2'], width=15)self.stopbits_cb.set('1')self.stopbits_cb.grid(row=4, column=1, padx=5, pady=5)# 操作按钮# 按钮容器btn_frame = ttk.Frame(parent)btn_frame.pack(pady=10, fill=X)# 配置网格列权重实现自动伸缩btn_frame.columnconfigure((0, 1, 2), weight=1, uniform='btns') # uniform 确保列宽一致# 刷新按钮ttk.Button(btn_frame,text="刷新端口",command=self.refresh_ports,bootstyle=OUTLINE).grid(row=0, column=0, padx=5, sticky="ew")# 连接按钮self.conn_btn = ttk.Button(btn_frame,text="打开串口",command=self.toggle_connection,bootstyle=OUTLINE + SUCCESS)self.conn_btn.grid(row=0, column=1, padx=5, sticky="ew")# 手动发送按钮(移动到此处)ttk.Button(btn_frame,text="手动发送",command=self.send_data,bootstyle=OUTLINE + PRIMARY).grid(row=0, column=2, padx=5, sticky="ew")def create_send_controls(self, parent):"""发送区控件"""# 自动发送设置auto_frame = ttk.Frame(parent)auto_frame.pack(fill=X, pady=5)self.auto_var = BooleanVar()ttk.Checkbutton(auto_frame, text="自动发送", variable=self.auto_var,command=self.toggle_auto_send).pack(side=LEFT)ttk.Label(auto_frame, text="间隔(ms):").pack(side=LEFT, padx=5)self.interval_entry = ttk.Entry(auto_frame, width=8)self.interval_entry.insert(0, "1000")self.interval_entry.pack(side=LEFT)# 发送内容self.send_text = ScrolledText(parent, height=4, autohide=True)self.send_text.pack(fill=BOTH, expand=True)# 绑定上下箭头键用于历史记录导航self.send_text.bind("<Up>", self.prev_history)self.send_text.bind("<Down>", self.next_history)def create_recv_controls(self, parent):"""接收区控件"""# 接收显示self.recv_text = ScrolledText(parent, height=5, autohide=True)self.recv_text.pack(fill=BOTH, expand=True)# 统计栏stat_frame = ttk.Frame(parent)stat_frame.pack(fill=X, pady=5)ttk.Label(stat_frame, text="发送:").pack(side=LEFT, padx=5)self.send_label = ttk.Label(stat_frame, text="0")self.send_label.pack(side=LEFT)ttk.Label(stat_frame, text="接收:").pack(side=LEFT, padx=10)self.recv_label = ttk.Label(stat_frame, text="0")self.recv_label.pack(side=LEFT)# 添加保存接收按钮ttk.Button(stat_frame, text="保存接收", command=self.save_received,bootstyle=OUTLINE + INFO).pack(side=RIGHT, padx=5)ttk.Button(stat_frame, text="清空", command=self.clear_received,bootstyle=OUTLINE + WARNING).pack(side=RIGHT)def refresh_ports(self):"""刷新端口列表"""try:ports = [p.device for p in serial.tools.list_ports.comports()]self.port_cb['values'] = portsself.status_var.set(f"自动检测到主板有{len(ports)} 个串口可用,请注意选择正确的。")self.last_port_count = len(ports)except Exception as e:print(f"Error refreshing ports: {e}")self.status_var.set(f"刷新端口时出错: {e}")def check_ports_change(self):"""检查串口变化"""current_count = len(list(serial.tools.list_ports.comports()))if current_count != self.last_port_count:self.refresh_ports()self.master.after(1000, self.check_ports_change) # 每秒检查一次def toggle_connection(self):"""切换连接状态"""if self.serial_port and self.serial_port.is_open:self.close_serial()else:self.open_serial()def open_serial(self):"""打开串口"""try:port = self.port_cb.get()if not port:raise ValueError("请选择串口")parity_map = {'None': serial.PARITY_NONE,'Even': serial.PARITY_EVEN,'Odd': serial.PARITY_ODD,'Mark': serial.PARITY_MARK,'Space': serial.PARITY_SPACE}self.serial_port = serial.Serial(port=port,baudrate=int(self.baudrate_cb.get()),parity=parity_map[self.parity_cb.get()],bytesize=int(self.databits_cb.get()),stopbits=float(self.stopbits_cb.get()),timeout=0.1)self.conn_btn.configure(text="关闭串口", bootstyle=OUTLINE + SUCCESS)self.status_var.set(f"已连接 {port}")self.receive_thread_event.clear() # 清除事件标志self.receive_thread = threading.Thread(target=self.receive_worker, daemon=True)self.receive_thread.start()except Exception as e:Messagebox.show_error(f"主板上没有这个串口或你选的被测端口跟主板端口不对应,请在设备管理器中确认正确的端口: {str(e)}", "错误")self.status_var.set("连接失败")def close_serial(self):"""关闭串口"""self.receive_thread_event.set() # 设置事件标志,通知接收线程停止if self.receive_thread and self.receive_thread.is_alive():self.receive_thread.join() # 等待接收线程结束if self.serial_port:try:self.serial_port.close()except Exception as e:print(f"关闭串口时出错: {e}")self.conn_btn.configure(text="打开串口", bootstyle=DANGER)self.status_var.set("已断开连接")def receive_worker(self):"""接收线程工作函数"""while not self.receive_thread_event.is_set() and self.serial_port and self.serial_port.is_open:try:if self.serial_port.in_waiting > 0:data = self.serial_port.read(self.serial_port.in_waiting)self.receive_queue.put(data)except Exception as e:print(f"接收错误: {e}")breakdef process_queue(self):"""处理接收队列"""while not self.receive_queue.empty():data = self.receive_queue.get()self.display_received(data)self.receive_count += len(data)self.recv_label.configure(text=str(self.receive_count))self.master.after(100, self.process_queue)def display_received(self, data):"""显示接收数据(带时间戳)"""timestamp = time.strftime("[%Y-%m-%d %H:%M:%S] ", time.localtime())try:text = data.decode('utf-8')self.recv_text.insert(END, timestamp + text + '\n')self.recv_text.see(END)except UnicodeDecodeError:self.recv_text.insert(END, timestamp + data.hex(' ') + '\n')self.recv_text.see(END)def toggle_auto_send(self):"""切换自动发送"""self.auto_send_flag = self.auto_var.get()if self.auto_send_flag:self.auto_send_task()def auto_send_task(self):"""自动发送任务"""if self.auto_send_flag and self.serial_port and self.serial_port.is_open:try:interval = int(self.interval_entry.get())self.send_data()self.master.after(interval, self.auto_send_task)except ValueError:self.auto_var.set(False)Messagebox.show_error("无效的间隔时间", "错误")def send_data(self):"""发送数据"""if not self.serial_port or not self.serial_port.is_open:Messagebox.show_warning("请先打开串口", "警告")returndata = self.send_text.get(1.0, END).strip()if not data:returntry:# 添加到历史记录if data and (not self.send_history or data != self.send_history[0]):self.send_history.insert(0, data)if len(self.send_history) > 20: # 限制历史记录数量self.send_history.pop()self.history_index = -1 # 重置历史索引self.serial_port.write(data.encode('utf-8'))self.send_count += len(data)self.send_label.configure(text=str(self.send_count))# 显示发送的数据(带时间戳)timestamp = time.strftime("[%Y-%m-%d %H:%M:%S] ", time.localtime())self.recv_text.insert(END, f"{timestamp}[Send] {data}\n")self.recv_text.see(END)except Exception as e:Messagebox.show_error(f"发送失败: {str(e)}", "错误")def prev_history(self, event):"""上一条历史记录"""if self.send_history:if self.history_index < len(self.send_history) - 1:self.history_index += 1self.send_text.delete(1.0, END)self.send_text.insert(END, self.send_history[self.history_index])return "break"def next_history(self, event):"""下一条历史记录"""if self.history_index > 0:self.history_index -= 1self.send_text.delete(1.0, END)self.send_text.insert(END, self.send_history[self.history_index])elif self.history_index == 0:self.history_index = -1self.send_text.delete(1.0, END)return "break"def save_received(self):"""保存接收内容到文件"""filename = filedialog.asksaveasfilename(defaultextension=".txt",filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")])if filename:try:with open(filename, 'w', encoding='utf-8') as f:f.write(self.recv_text.get(1.0, END))self.status_var.set(f"接收内容已保存到 {filename}")except Exception as e:Messagebox.show_error(f"保存文件失败: {str(e)}", "错误")def clear_received(self):"""清空接收区"""self.recv_text.delete(1.0, END)self.receive_count = 0self.recv_label.configure(text="0")self.send_text.delete(1.0, END)self.send_count = 0self.send_label.configure(text="0")def on_closing(self):"""安全关闭程序"""# 停止自动发送循环self.auto_send_flag = False# 关闭串口连接self.close_serial()# 确保完全退出self.master.quit() # 终止mainloopself.master.destroy() # 销毁所有Tkinter对象self.master.after(500, self.force_exit) # 500ms后强制退出def force_exit(self):"""最终退出保障"""import osos._exit(0) # 强制终止进程if __name__ == "__main__":root = ttk.Window()app = SerialTool(root)root.protocol("WM_DELETE_WINDOW", app.on_closing)root.mainloop()
🎯 总结与扩展
7.1 项目总结
- 采用生产者-消费者模式处理串口数据
- 通过队列实现线程间安全通信
- 现代化UI提升使用体验
7.2 扩展方向
- 增加协议解析功能(Modbus/AT指令等)
- 实现数据图表可视化
- 添加插件系统支持
技术要点回顾:本文详细介绍了如何用Python构建工业级串口调试工具,关键点在于正确处理多线程通信和提供友好的用户交互体验。建议读者在此基础上扩展协议解析等高级功能。
版权声明:本代码采用MIT开源协议,欢迎自由使用和修改,但请保留原作者信息。