--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Small_CPU/Inc/uartProtocol_Sentinel.h	Tue Feb 11 18:12:00 2025 +0100
@@ -0,0 +1,68 @@
+/**
+  ******************************************************************************
+  * @file    uartProtocol_Sentinel.h
+  * @author  heinrichs weikamp gmbh
+  * @version V0.0.1
+  * @date    15-Jan-2024
+  * @brief	 Interface functionality read data from Sentinel rebreather
+  *
+  @verbatim
+  ==============================================================================
+                        ##### How to use #####
+  ==============================================================================
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef UART_PROTOCOL_SENTINEL_H
+#define UART_PROTOCOL_SENTINEL_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "configuration.h"
+#include "stm32f4xx_hal.h"
+
+ typedef enum
+  {
+	UART_SENTINEL_INIT = 0,		/* Default Status for every sensor type */
+	UART_SENTINEL_IDLE,			/* sensor detected and no communication pending */
+	UART_SENTINEL_ERROR,
+  	UART_SENTINEL_OPERATING,		/* normal operation */
+  } uartSentinelStatus_t;
+
+  typedef enum
+  {
+  	SENTRX_Ready= 0,					/* Initial state */
+ 	SENTRX_DetectStart,					/* validate start byte */
+ 	SENTRX_SelectData,					/* Data contained in this frame */
+  	SENTRX_Data0,						/* Process incoming data */
+ 	SENTRX_Data1,
+ 	SENTRX_Data2,
+ 	SENTRX_Data3,
+ 	SENTRX_Data4,
+ 	SENTRX_Data5,
+ 	SENTRX_Data6,
+ 	SENTRX_Data7,
+ 	SENTRX_Data8,
+ 	SENTRX_Data9,
+ 	SENTRX_Data10,
+ 	SENTRX_Data11,
+ 	SENTRX_Data12,
+ 	SENTRX_DataComplete
+  } receiveStateSentinel_t;
+
+
+void uartSentinel_Control(void);
+void uartSentinel_ProcessData(uint8_t data);
+uint8_t uartSentinel_isSensorConnected();
+
+#endif /* UART_PROTOCOL_SENTINEL_H */