diff --git a/adxl345.h b/adxl345.h
new file mode 100644
index 0000000..fd37773
--- /dev/null
+++ b/adxl345.h
@@ -0,0 +1,8 @@
+#ifndef __adxl345_H
+#define __adxl345_H
+
+#define ACC_SCALE 0.0039
+
+void adxl345_init(void);
+void adxl345_get_data(s16 *ax, s16 *ay, s16 *az);
+#endif