add src

library.properties

@@ -7,5 +7,5 @@ paragraph=See more on http://M5Stack.com
 category=Device Control
 url=https://github.com/m5stack/STAMP-PICO.git
 architectures=esp32
-includes=
+includes=Arduino.h
 depends=FastLED,ESP32 AnalogWrite

src/Arduino.h

@@ -0,0 +1,26 @@
+#ifndef Arduino_h
+#define Arduino_h
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "Print.h"
+
+
+extern "C"{
+    typedef uint8_t byte ;
+    typedef uint8_t boolean ;
+
+    /* sketch */
+    extern void setup( void ) ;
+    extern void loop( void ) ;
+    uint32_t millis( void );
+}
+
+#define PROGMEM
+#define pgm_read_byte_near(x) *(x)
+
+#define yield(x) {}
+
+#endif // Arduino_h