stm32蓝牙模块用电脑连接单片机的串口通信的代码可以吗

可以，您可以参考以下代码：

#include <SoftwareSerial.h>

SoftwareSerial BTSerial(10, 11); // RX | TX

void setup() {
  Serial.begin(9600);
  BTSerial.begin(9600);

  pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output
}

void loop() {
  if (BTSerial.available()) { // Read from the HC-06 and print to the serial monitor
    char c = BTSerial.read();
    Serial.write(c);
  }

  if (Serial.available()) { // Read from the serial monitor and send to the HC-06
    char c = Serial.read();
    BTSerial.write(c);
    if (c == '1') {
      digitalWrite(LED_BUILTIN, HIGH); // Turn on the LED
    } else if (c == '0') {
      digitalWrite(LED_BUILTIN, LOW); // Turn off the LED
    }
  }
}