Generic communication interface between the wireless board (mote) and the sensor board. Any kind of sensor board can be connected to the mote using this specification given it provides a SPI peripheral, one input pin with interrupt capability and one digital output. The sensor board must implement a special register set from which all required information can be retrieved. Protocol: http://is.gd/wuQorh Github: http://is.gd/ySj1L9
MMA8451Q/MMA8451Q.h@1:acdf490d94a7, 2014-04-08 (annotated)
- Committer:
- marcelobarrosalmeida
- Date:
- Tue Apr 08 16:34:20 2014 +0000
- Revision:
- 1:acdf490d94a7
Adding accel to sensor list
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
marcelobarrosalmeida | 1:acdf490d94a7 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
marcelobarrosalmeida | 1:acdf490d94a7 | 2 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
marcelobarrosalmeida | 1:acdf490d94a7 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
marcelobarrosalmeida | 1:acdf490d94a7 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
marcelobarrosalmeida | 1:acdf490d94a7 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
marcelobarrosalmeida | 1:acdf490d94a7 | 7 | * Software is furnished to do so, subject to the following conditions: |
marcelobarrosalmeida | 1:acdf490d94a7 | 8 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
marcelobarrosalmeida | 1:acdf490d94a7 | 10 | * substantial portions of the Software. |
marcelobarrosalmeida | 1:acdf490d94a7 | 11 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
marcelobarrosalmeida | 1:acdf490d94a7 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
marcelobarrosalmeida | 1:acdf490d94a7 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
marcelobarrosalmeida | 1:acdf490d94a7 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
marcelobarrosalmeida | 1:acdf490d94a7 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
marcelobarrosalmeida | 1:acdf490d94a7 | 17 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 18 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 19 | #ifndef MMA8451Q_H |
marcelobarrosalmeida | 1:acdf490d94a7 | 20 | #define MMA8451Q_H |
marcelobarrosalmeida | 1:acdf490d94a7 | 21 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 22 | #include "mbed.h" |
marcelobarrosalmeida | 1:acdf490d94a7 | 23 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 24 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 25 | * MMA8451Q accelerometer example |
marcelobarrosalmeida | 1:acdf490d94a7 | 26 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 27 | * @code |
marcelobarrosalmeida | 1:acdf490d94a7 | 28 | * #include "mbed.h" |
marcelobarrosalmeida | 1:acdf490d94a7 | 29 | * #include "MMA8451Q.h" |
marcelobarrosalmeida | 1:acdf490d94a7 | 30 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 31 | * #define MMA8451_I2C_ADDRESS (0x1d<<1) |
marcelobarrosalmeida | 1:acdf490d94a7 | 32 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 33 | * int main(void) { |
marcelobarrosalmeida | 1:acdf490d94a7 | 34 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 35 | * MMA8451Q acc(P_E25, P_E24, MMA8451_I2C_ADDRESS); |
marcelobarrosalmeida | 1:acdf490d94a7 | 36 | * PwmOut rled(LED_RED); |
marcelobarrosalmeida | 1:acdf490d94a7 | 37 | * PwmOut gled(LED_GREEN); |
marcelobarrosalmeida | 1:acdf490d94a7 | 38 | * PwmOut bled(LED_BLUE); |
marcelobarrosalmeida | 1:acdf490d94a7 | 39 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 40 | * while (true) { |
marcelobarrosalmeida | 1:acdf490d94a7 | 41 | * rled = 1.0 - abs(acc.getAccX()); |
marcelobarrosalmeida | 1:acdf490d94a7 | 42 | * gled = 1.0 - abs(acc.getAccY()); |
marcelobarrosalmeida | 1:acdf490d94a7 | 43 | * bled = 1.0 - abs(acc.getAccZ()); |
marcelobarrosalmeida | 1:acdf490d94a7 | 44 | * wait(0.1); |
marcelobarrosalmeida | 1:acdf490d94a7 | 45 | * } |
marcelobarrosalmeida | 1:acdf490d94a7 | 46 | * } |
marcelobarrosalmeida | 1:acdf490d94a7 | 47 | * @endcode |
marcelobarrosalmeida | 1:acdf490d94a7 | 48 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 49 | class MMA8451Q |
marcelobarrosalmeida | 1:acdf490d94a7 | 50 | { |
marcelobarrosalmeida | 1:acdf490d94a7 | 51 | public: |
marcelobarrosalmeida | 1:acdf490d94a7 | 52 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 53 | * MMA8451Q constructor |
marcelobarrosalmeida | 1:acdf490d94a7 | 54 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 55 | * @param sda SDA pin |
marcelobarrosalmeida | 1:acdf490d94a7 | 56 | * @param sdl SCL pin |
marcelobarrosalmeida | 1:acdf490d94a7 | 57 | * @param addr addr of the I2C peripheral |
marcelobarrosalmeida | 1:acdf490d94a7 | 58 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 59 | MMA8451Q(PinName sda, PinName scl, int addr); |
marcelobarrosalmeida | 1:acdf490d94a7 | 60 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 61 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 62 | * MMA8451Q destructor |
marcelobarrosalmeida | 1:acdf490d94a7 | 63 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 64 | ~MMA8451Q(); |
marcelobarrosalmeida | 1:acdf490d94a7 | 65 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 66 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 67 | * Get the value of the WHO_AM_I register |
marcelobarrosalmeida | 1:acdf490d94a7 | 68 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 69 | * @returns WHO_AM_I value |
marcelobarrosalmeida | 1:acdf490d94a7 | 70 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 71 | uint8_t getWhoAmI(); |
marcelobarrosalmeida | 1:acdf490d94a7 | 72 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 73 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 74 | * Get X axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 75 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 76 | * @returns X axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 77 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 78 | float getAccX(); |
marcelobarrosalmeida | 1:acdf490d94a7 | 79 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 80 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 81 | * Get Y axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 82 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 83 | * @returns Y axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 84 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 85 | float getAccY(); |
marcelobarrosalmeida | 1:acdf490d94a7 | 86 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 87 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 88 | * Get Z axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 89 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 90 | * @returns Z axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 91 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 92 | float getAccZ(); |
marcelobarrosalmeida | 1:acdf490d94a7 | 93 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 94 | /** |
marcelobarrosalmeida | 1:acdf490d94a7 | 95 | * Get XYZ axis acceleration |
marcelobarrosalmeida | 1:acdf490d94a7 | 96 | * |
marcelobarrosalmeida | 1:acdf490d94a7 | 97 | * @param res array where acceleration data will be stored |
marcelobarrosalmeida | 1:acdf490d94a7 | 98 | */ |
marcelobarrosalmeida | 1:acdf490d94a7 | 99 | void getAccAllAxis(float * res); |
marcelobarrosalmeida | 1:acdf490d94a7 | 100 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 101 | private: |
marcelobarrosalmeida | 1:acdf490d94a7 | 102 | I2C m_i2c; |
marcelobarrosalmeida | 1:acdf490d94a7 | 103 | int m_addr; |
marcelobarrosalmeida | 1:acdf490d94a7 | 104 | void readRegs(int addr, uint8_t * data, int len); |
marcelobarrosalmeida | 1:acdf490d94a7 | 105 | void writeRegs(uint8_t * data, int len); |
marcelobarrosalmeida | 1:acdf490d94a7 | 106 | int16_t getAccAxis(uint8_t addr); |
marcelobarrosalmeida | 1:acdf490d94a7 | 107 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 108 | }; |
marcelobarrosalmeida | 1:acdf490d94a7 | 109 | |
marcelobarrosalmeida | 1:acdf490d94a7 | 110 | #endif |