粘包问题已解决。

src/TTLCommunicator.cpp

@@ -52,7 +52,7 @@ bool TTLCommunicator::send_data(const std::string& data) {
             std::cerr << "Error writing to serial port: " << strerror(errno) << std::endl;
             return false;
         } else {
-            std::cout << "Sent " << bytes_written << " bytes: " << data << std::endl;
+            std::cout << "Sent " << bytes_written << " bytes: " << data;
             fsync(serial_fd); // Ensure data is sent
             return true;
         }