Example of tilt detection for LSM6DSL in X-NUCLEO-IKS01A2

Dependencies:   X_NUCLEO_IKS01A2 mbed

Fork of Tilt_IKS01A2 by ST Expansion SW Team

Tilt Detection Demo Application based on sensor expansion board X-NUCLEO-IKS01A2

Main function is to show how to detect the tilt event using the sensor expansion board and send a notification using UART to a connected PC or Desktop and display it on terminal applications like TeraTerm.
After connection has been established:
- the user can try to tilt the board and then view the notification using an hyper terminal. When the tilt event is detected, the LED is switched on for a while.
- the user button can be used to enable/disable the tilt detection feature.

Revision:
0:489965565a0d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/X_NUCLEO_IKS01A2/Components/HTS221Sensor/HTS221Sensor.h	Fri Aug 12 13:42:49 2016 +0000
@@ -0,0 +1,122 @@
+/**
+ ******************************************************************************
+ * @file    HTS221Sensor.h
+ * @author  AST
+ * @version V1.0.0
+ * @date    5 August 2016
+ * @brief   Abstract class of an HTS221 Humidity and Temperature sensor.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+
+/* Prevent recursive inclusion -----------------------------------------------*/
+
+#ifndef __HTS221Sensor_H__
+#define __HTS221Sensor_H__
+
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "DevI2C.h"
+#include "HTS221_Driver.h"
+
+
+/* Typedefs ------------------------------------------------------------------*/
+typedef enum
+{
+  HTS221_STATUS_OK = 0,
+  HTS221_STATUS_ERROR,
+  HTS221_STATUS_TIMEOUT,
+  HTS221_STATUS_NOT_IMPLEMENTED
+} HTS221StatusTypeDef;
+
+/* Class Declaration ---------------------------------------------------------*/
+
+/**
+ * Abstract class of an HTS221 Humidity and Temperature sensor.
+ */
+class HTS221Sensor
+{
+  public:
+    HTS221Sensor                       (DevI2C &i2c);
+    HTS221Sensor                       (DevI2C &i2c, uint8_t address);
+    HTS221StatusTypeDef Enable         (void);
+    HTS221StatusTypeDef Disable        (void);
+    HTS221StatusTypeDef ReadID         (uint8_t *ht_id);
+    HTS221StatusTypeDef Reset          (void);
+    HTS221StatusTypeDef GetHumidity    (float *pfData);
+    HTS221StatusTypeDef GetTemperature (float *pfData);
+    HTS221StatusTypeDef GetODR         (float *odr);
+    HTS221StatusTypeDef SetODR         (float odr);
+    HTS221StatusTypeDef ReadReg        (uint8_t reg, uint8_t *data);
+    HTS221StatusTypeDef WriteReg       (uint8_t reg, uint8_t data);
+    /**
+     * @brief Utility function to read data.
+     * @param  pBuffer: pointer to data to be read.
+     * @param  RegisterAddr: specifies internal address register to be read.
+     * @param  NumByteToRead: number of bytes to be read.
+     * @retval 0 if ok, an error code otherwise.
+     */
+    uint8_t IO_Read(uint8_t* pBuffer, uint8_t RegisterAddr, uint16_t NumByteToRead)
+    {
+        return (uint8_t) dev_i2c.i2c_read(pBuffer, address, RegisterAddr, NumByteToRead);
+    }
+    
+    /**
+     * @brief Utility function to write data.
+     * @param  pBuffer: pointer to data to be written.
+     * @param  RegisterAddr: specifies internal address register to be written.
+     * @param  NumByteToWrite: number of bytes to write.
+     * @retval 0 if ok, an error code otherwise.
+     */
+    uint8_t IO_Write(uint8_t* pBuffer, uint8_t RegisterAddr, uint16_t NumByteToWrite)
+    {
+        return (uint8_t) dev_i2c.i2c_write(pBuffer, address, RegisterAddr, NumByteToWrite);
+    }
+
+  private:
+
+    /* Helper classes. */
+    DevI2C &dev_i2c;
+    
+    /* Configuration */
+    uint8_t address;
+};
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+uint8_t HTS221_IO_Write( void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite );
+uint8_t HTS221_IO_Read( void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead );
+#ifdef __cplusplus
+  }
+#endif
+
+#endif