Arduino STM32druino

概览

关键字：Arduino、Nucleo-64、STM32F103RB

板子图片	显示效果

HelloWorld点灯	注意配置-F103RB

调试串口

默认调试串口是STLink虚拟的，使用串口助手连接“默认的D1D0”是接收到不数据的，因为那是Serial2，这也说明调试串口不占用D0D1。

串口Demo	串口名字

D1D0串口使用

硬件修复

默认D0、D1不可用，需要按照如下图所示：

修复D0 D1不可用问题

使用Serial2

如果要用D1D0所在的串口，则需要软件上直接使用Serial2，这一点和ESP32类似。

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
  Serial.begin(115200);
  Serial2.begin(115200);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(1000);                      // wait for a second
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
  delay(1000);                      // wait for a second
  Serial.println("Hello World! Here is Serial");
  Serial2.println("Hello World! Here is Serial2");
}

引脚图

Arduino风格管脚 左	Arduino风格管脚 右

数据手册中管脚对应图

补充配置电路板

https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json

更多参考资料：

https://os.mbed.com/platforms/ST-Nucleo-F103RB/

For STM32F103C8T6 board, the default Serial is actually mapped to the 2nd serial port of the chip. This port is wired to the on-board ST-link. You can then plug your PC to the USB-port of the ST-link and get Serial Monitor on Arduino IDE right away.

来自：https://www.stm32duino.com/viewtopic.php?t=1354

硬件串口1的使用

Serial1的使用

HardwareSerial Serial1(PA10, PA9);

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
  Serial.begin(115200);
  // Serial1.begin(115200);
  Serial1.begin(115200);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(1000);                      // wait for a second
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
  delay(1000);                      // wait for a second
  Serial.println("Hello World! Here is Serial");
  // Serial1.println("Hello World! Here is Serial1");
  Serial1.println("Hello World! Here is Serial1");
}

硬件连接
D2 RX
D8 TX