Arduino Blink example: add BluePill support

platforms/arduino_blink/README.md

@@ -7,7 +7,7 @@ To run the example:
 ```sh
 pio run -e <device> -t upload && pio device monitor
 ```
-Where `<device>` is one of: `ESP32`, `ESP8266`, `MKR1000`, `TinyBLE`, `Teensy31`, `WildFireV3`
+Where `<device>` is one of: `ESP32`, `ESP8266`, `MKR1000`, `BluePill`, `TinyBLE`, `Teensy31`, `WildFireV3`
 
 ## Building the WebAssembly app
 

platforms/arduino_blink/platformio.ini

@@ -47,6 +47,17 @@ src_build_flags =
   -DLED_PIN=6
   -O3 -flto
 
+[env:BluePill]
+platform = ststm32
+board = bluepill_f103c8
+framework = arduino
+upload_protocol = stlink
+monitor_speed = 115200
+
+src_build_flags =
+  -DLED_PIN=PC13
+  -Os -flto
+
 [env:TinyBLE]
 platform = nordicnrf51
 board = seeedTinyBLE

platforms/arduino_blink/src/m3_arduino_api.cpp

@@ -4,11 +4,11 @@
  * All rights reserved.
  */
 
+#include <Arduino.h>
+
 #include "m3/m3_api_defs.h"
 #include "m3/m3_env.h"
 
-#include <Arduino.h>
-
 /*
  * Note: each RawFunction should complete with one of these calls:
  *   m3ApiReturn(val)   - Returns a value