--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Small_CPU/Inc/pressure.h	Sat Apr 28 11:52:34 2018 +0200
@@ -0,0 +1,26 @@
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef PRESSURE_H
+#define PRESSURE_H
+
+#include <stdint.h>
+
+uint8_t init_pressure(void);
+uint8_t pressure_update(void);
+
+uint8_t is_init_pressure_done(void);
+
+void  pressure_sensor_get_pressure_raw(void);
+void  pressure_sensor_get_temperature_raw(void);
+void pressure_calculation(void);
+
+float get_temperature(void);
+float get_pressure_mbar(void);
+float get_surface_mbar(void);
+
+void init_surface_ring(void);
+void update_surface_pressure(uint8_t call_rhythm_seconds);
+
+uint32_t demo_modify_temperature_and_pressure(int32_t divetime_in_seconds, uint8_t subseconds, float ceiling_mbar);
+
+#endif /* PRESSURE_H */
+