MPL115A2 (I2C) Pressure sensor interface
Dependents: MPL115A2Sample dataloger_for_modelrocket ARLISS2012_Hidaka
MPL115A2.h@2:d77bd4340924, 2011-05-14 (annotated)
- Committer:
- yamaguch
- Date:
- Sat May 14 17:29:51 2011 +0000
- Revision:
- 2:d77bd4340924
0.91
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
yamaguch | 2:d77bd4340924 | 1 | #ifndef MPL115A2 |
yamaguch | 2:d77bd4340924 | 2 | #define MPL115A |
yamaguch | 2:d77bd4340924 | 3 | |
yamaguch | 2:d77bd4340924 | 4 | #include "mbed.h" |
yamaguch | 2:d77bd4340924 | 5 | |
yamaguch | 2:d77bd4340924 | 6 | /** |
yamaguch | 2:d77bd4340924 | 7 | * MPL115A2 (I2C) pressure sensor |
yamaguch | 2:d77bd4340924 | 8 | */ |
yamaguch | 2:d77bd4340924 | 9 | |
yamaguch | 2:d77bd4340924 | 10 | class MPL115A2 { |
yamaguch | 2:d77bd4340924 | 11 | public: |
yamaguch | 2:d77bd4340924 | 12 | /** |
yamaguch | 2:d77bd4340924 | 13 | * Create an MPL115A(I2C) interface with specified pins |
yamaguch | 2:d77bd4340924 | 14 | * |
yamaguch | 2:d77bd4340924 | 15 | * @param PinName sda SDA pin (default = p9) |
yamaguch | 2:d77bd4340924 | 16 | * @param PinName scl SCL pin (default = p10) |
yamaguch | 2:d77bd4340924 | 17 | */ |
yamaguch | 2:d77bd4340924 | 18 | MPL115A2(PinName sda = p9, PinName scl = p10) : i2c(sda, scl) { |
yamaguch | 2:d77bd4340924 | 19 | } |
yamaguch | 2:d77bd4340924 | 20 | |
yamaguch | 2:d77bd4340924 | 21 | /** |
yamaguch | 2:d77bd4340924 | 22 | * Read current pressure and/or temperature |
yamaguch | 2:d77bd4340924 | 23 | * |
yamaguch | 2:d77bd4340924 | 24 | * @param puressure pointer to a float area to receive pressure |
yamaguch | 2:d77bd4340924 | 25 | * @param padc pointer to an int area to receive pressure adc value |
yamaguch | 2:d77bd4340924 | 26 | * @param tadc pointer to an int area to receive temperature adc value |
yamaguch | 2:d77bd4340924 | 27 | * @param data pointer to an array of adc's and coefficients (byte array of size 16) |
yamaguch | 2:d77bd4340924 | 28 | * |
yamaguch | 2:d77bd4340924 | 29 | * @returns 0 (success), or -1 (I2C error) |
yamaguch | 2:d77bd4340924 | 30 | */ |
yamaguch | 2:d77bd4340924 | 31 | |
yamaguch | 2:d77bd4340924 | 32 | int read(float *pressure, char *data); |
yamaguch | 2:d77bd4340924 | 33 | |
yamaguch | 2:d77bd4340924 | 34 | /** |
yamaguch | 2:d77bd4340924 | 35 | * Read current pressure |
yamaguch | 2:d77bd4340924 | 36 | * |
yamaguch | 2:d77bd4340924 | 37 | * @returns current pressure (in hPa) |
yamaguch | 2:d77bd4340924 | 38 | */ |
yamaguch | 2:d77bd4340924 | 39 | float readPressure(); |
yamaguch | 2:d77bd4340924 | 40 | |
yamaguch | 2:d77bd4340924 | 41 | /** |
yamaguch | 2:d77bd4340924 | 42 | * Operator shorthand for readPressure() |
yamaguch | 2:d77bd4340924 | 43 | */ |
yamaguch | 2:d77bd4340924 | 44 | operator float() { |
yamaguch | 2:d77bd4340924 | 45 | return readPressure(); |
yamaguch | 2:d77bd4340924 | 46 | } |
yamaguch | 2:d77bd4340924 | 47 | |
yamaguch | 2:d77bd4340924 | 48 | private: |
yamaguch | 2:d77bd4340924 | 49 | I2C i2c; |
yamaguch | 2:d77bd4340924 | 50 | }; |
yamaguch | 2:d77bd4340924 | 51 | |
yamaguch | 2:d77bd4340924 | 52 | #endif |