11 Table of contents
Features ............................................................................................... 1
1 Introduction ...................................................................................... 1
2 Overview ........................................................................................... 2
2.1 Common sensors service.................................................................................... 2
2.1.1 Sensors Xplained API modules ................................................................................. 2
2.1.2 The sensor.h header file............................................................................................ 2
2.1.3 The Sensors Xplained module_config directory ........................................................ 3
2.1.4 Sensors Xplained drivers directory ............................................................................ 3
2.1.5 Sensors Xplained driver libraries ............................................................................... 3
2.2 Sensors Xplained target boards .......................................................................... 4
3 Requirements ................................................................................... 6
4 Creating an application ................................................................... 7
4.1 Example Sensors Xplained applications ............................................................. 7
4.1.1 Building an example application ................................................................................ 7
4.1.2 Changing the default sensor board ........................................................................... 8
4.2 Adding sensors to an existing application ........................................................... 8
4.3 Attaching a sensor board .................................................................................... 9
5 Initialization .................................................................................... 10
5.1 Configuration ..................................................................................................... 10
5.2 Initializing sensors ............................................................................................. 10
6 Control interfaces .......................................................................... 11
6.1 Sensor range ..................................................................................................... 11
6.2 Sampling bandwidth .......................................................................................... 11
6.3 Thresholds......................................................................................................... 12
6.4 Calibration ......................................................................................................... 12
6.5 Self test.............................................................................................................. 13
7 Reading sensor data...................................................................... 14
7.1 Overview............................................................................................................ 14
7.1.1 Sensor read interfaces ............................................................................................ 14
7.1.2 Sensor data structure sensor_data_t.................................................................... 14
7.1.3 Measurement units .................................................................................................. 15
7.1.4 Reading “raw” values............................................................................................... 15
7.1.5 Timestamps............................................................................................................. 15
7.2 Device ID and version ....................................................................................... 15
7.3 Acceleration....................................................................................................... 16
7.3.1 Example code sequence ......................................................................................... 16
7.4 Rotation ............................................................................................................. 16
7.4.1 Example code sequence ......................................................................................... 17
7.5 Compass heading ............................................................................................. 17
34
Atmel AVR4016
8367B-AVR-06/11
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