测试文件夹架构

新建文件夹/TTLCommunicator.py

@@ -0,0 +1,70 @@
+import serial
+import serial.tools.list_ports
+
+
+class TTLCommunicator:
+    def __init__(self, baudrate=115200, timeout=0.1):
+        """初始化TTL通信对象"""
+        self.baudrate = baudrate
+        self.timeout = timeout
+        self.ser = None
+        self.connected = False
+
+    @staticmethod  # 声明为静态方法
+    def find_usb_ttl_port():
+        """自动查找USB转TTL设备端口（静态方法，不依赖实例状态）"""
+        ports = list(serial.tools.list_ports.comports())
+        for port in ports:
+            if "USB Serial" in port.description or "CH340" in port.description or "PL2303" in port.description:
+                return port.device
+        return None
+
+    def connect(self, port=None):
+        """连接到USB转TTL设备"""
+        try:
+            if not port:
+                # 调用静态方法时，可直接通过类名或实例调用（此处保持原有逻辑）
+                port = self.find_usb_ttl_port()
+                if not port:
+                    print("未找到USB转TTL设备")
+                    return False
+
+            self.ser = serial.Serial(
+                port=port,
+                baudrate=self.baudrate,
+                timeout=self.timeout,
+                parity=serial.PARITY_NONE,
+                stopbits=1,
+                bytesize=serial.EIGHTBITS
+            )
+
+            if self.ser.is_open:
+                self.connected = True
+                print(f"已连接TTL设备：{port}（波特率：{self.baudrate}）")
+                return True
+            return False
+        except Exception as e:
+            print(f"连接失败：{str(e)}")
+            return False
+
+    def send_data(self, data_str):
+        """发送数据到TTL设备"""
+        if not self.connected or not self.ser:
+            print("未连接TTL设备，请先调用connect()")
+            return False
+
+        try:
+            data = (data_str + "\n").encode("utf-8")  # 加换行符作为结束标志
+            self.ser.write(data)
+            self.ser.flush()
+            return True
+        except Exception as e:
+            print(f"发送失败：{str(e)}")
+            return False
+
+    def close(self):
+        """关闭串口连接"""
+        if self.ser and self.ser.is_open:
+            self.ser.close()
+            self.connected = False
+            print("TTL连接已关闭")