add header missing for compile on ESP32

Richard Unger · Richard Unger · commit 966ac9ca25d0 · 2022-08-26T16:26:18.000+02:00
diff --git a/src/encoders/mt6701/MagneticSensorMT6701SSI.h b/src/encoders/mt6701/MagneticSensorMT6701SSI.h
@@ -1,6 +1,7 @@
 #ifndef __MAGNETIC_SENSOR_MT6701_SSI_H__
 #define __MAGNETIC_SENSOR_MT6701_SSI_H__
 
+#include "Arduino.h"
 #include "SPI.h"
 #include "common/base_classes/Sensor.h"
 
