Analog Devices 3-axis accelerometer. I2C interface
ADXL345.h@0:21a3f84ad1c9, 2017-09-23 (annotated)
- Committer:
- kenjiArai
- Date:
- Sat Sep 23 22:21:33 2017 +0000
- Revision:
- 0:21a3f84ad1c9
1st rev. I2C interface. Analog Devices 3-axis accelerometer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kenjiArai | 0:21a3f84ad1c9 | 1 | /* |
kenjiArai | 0:21a3f84ad1c9 | 2 | * mbed library program |
kenjiArai | 0:21a3f84ad1c9 | 3 | * ADXL345: 3-axis accelerometer, made by Analog Devices |
kenjiArai | 0:21a3f84ad1c9 | 4 | * http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf |
kenjiArai | 0:21a3f84ad1c9 | 5 | * |
kenjiArai | 0:21a3f84ad1c9 | 6 | * Copyright (c) 2017 Kenji Arai / JH1PJL |
kenjiArai | 0:21a3f84ad1c9 | 7 | * http://www.page.sannet.ne.jp/kenjia/index.html |
kenjiArai | 0:21a3f84ad1c9 | 8 | * http://mbed.org/users/kenjiArai/ |
kenjiArai | 0:21a3f84ad1c9 | 9 | * Modify: August 13th, 2017 |
kenjiArai | 0:21a3f84ad1c9 | 10 | * Revised: September 23rd, 2017 |
kenjiArai | 0:21a3f84ad1c9 | 11 | * |
kenjiArai | 0:21a3f84ad1c9 | 12 | */ |
kenjiArai | 0:21a3f84ad1c9 | 13 | |
kenjiArai | 0:21a3f84ad1c9 | 14 | #ifndef ADXL345_H |
kenjiArai | 0:21a3f84ad1c9 | 15 | #define ADXL345_H |
kenjiArai | 0:21a3f84ad1c9 | 16 | |
kenjiArai | 0:21a3f84ad1c9 | 17 | #include "mbed.h" |
kenjiArai | 0:21a3f84ad1c9 | 18 | |
kenjiArai | 0:21a3f84ad1c9 | 19 | // ADXL345 Address |
kenjiArai | 0:21a3f84ad1c9 | 20 | // 7bit address = 0x1D or 0x53 (depends on ALT ADDRESS pin) |
kenjiArai | 0:21a3f84ad1c9 | 21 | #define ADXL345_G_CHIP_ADDR (0x53 << 1) // ALT ADDRESS = Ground |
kenjiArai | 0:21a3f84ad1c9 | 22 | #define ADXL345_V_CHIP_ADDR (0x1D << 1) // ALT ADDRESS = Vdd |
kenjiArai | 0:21a3f84ad1c9 | 23 | |
kenjiArai | 0:21a3f84ad1c9 | 24 | // ADXL345 ID |
kenjiArai | 0:21a3f84ad1c9 | 25 | #define ADXL345_DEVICE_ID 0xE5 |
kenjiArai | 0:21a3f84ad1c9 | 26 | |
kenjiArai | 0:21a3f84ad1c9 | 27 | // Register's definition |
kenjiArai | 0:21a3f84ad1c9 | 28 | #define ADXL345_DEVID 0x00 |
kenjiArai | 0:21a3f84ad1c9 | 29 | #define ADXL345_THRESH_TAP 0x1D |
kenjiArai | 0:21a3f84ad1c9 | 30 | #define ADXL345_OFSX 0x1E |
kenjiArai | 0:21a3f84ad1c9 | 31 | #define ADXL345_OFSY 0x1F |
kenjiArai | 0:21a3f84ad1c9 | 32 | #define ADXL345_OFSZ 0x20 |
kenjiArai | 0:21a3f84ad1c9 | 33 | #define ADXL345_DUR 0x21 |
kenjiArai | 0:21a3f84ad1c9 | 34 | #define ADXL345_LATENT 0x22 |
kenjiArai | 0:21a3f84ad1c9 | 35 | #define ADXL345_WINDOW 0x23 |
kenjiArai | 0:21a3f84ad1c9 | 36 | #define ADXL345_THRESH_ACT 0x24 |
kenjiArai | 0:21a3f84ad1c9 | 37 | #define ADXL345_THRESH_INACT 0x25 |
kenjiArai | 0:21a3f84ad1c9 | 38 | #define ADXL345_TIME_INACT 0x26 |
kenjiArai | 0:21a3f84ad1c9 | 39 | #define ADXL345_ACT_INACT_CTL 0x27 |
kenjiArai | 0:21a3f84ad1c9 | 40 | #define ADXL345_THRESH_FF 0x28 |
kenjiArai | 0:21a3f84ad1c9 | 41 | #define ADXL345_TIME_FF 0x29 |
kenjiArai | 0:21a3f84ad1c9 | 42 | #define ADXL345_TAP_AXES 0x2A |
kenjiArai | 0:21a3f84ad1c9 | 43 | #define ADXL345_ACT_TAP_STATUS 0x2B |
kenjiArai | 0:21a3f84ad1c9 | 44 | #define ADXL345_BW_RATE 0x2C |
kenjiArai | 0:21a3f84ad1c9 | 45 | #define ADXL345_POWER_CTL 0x2D |
kenjiArai | 0:21a3f84ad1c9 | 46 | #define ADXL345_INT_ENABLE 0x2E |
kenjiArai | 0:21a3f84ad1c9 | 47 | #define ADXL345_INT_MAP 0x2F |
kenjiArai | 0:21a3f84ad1c9 | 48 | #define ADXL345_INT_SOURCE 0x30 |
kenjiArai | 0:21a3f84ad1c9 | 49 | #define ADXL345_DATA_FORMAT 0x31 |
kenjiArai | 0:21a3f84ad1c9 | 50 | #define ADXL345_DATAX0 0x32 |
kenjiArai | 0:21a3f84ad1c9 | 51 | #define ADXL345_DATAX1 0x33 |
kenjiArai | 0:21a3f84ad1c9 | 52 | #define ADXL345_DATAY0 0x34 |
kenjiArai | 0:21a3f84ad1c9 | 53 | #define ADXL345_DATAY1 0x35 |
kenjiArai | 0:21a3f84ad1c9 | 54 | #define ADXL345_DATAZ0 0x36 |
kenjiArai | 0:21a3f84ad1c9 | 55 | #define ADXL345_DATAZ1 0x37 |
kenjiArai | 0:21a3f84ad1c9 | 56 | #define ADXL345_FIFO_CTL 0x38 |
kenjiArai | 0:21a3f84ad1c9 | 57 | #define ADXL345_FIFO_STATUS 0x39 |
kenjiArai | 0:21a3f84ad1c9 | 58 | |
kenjiArai | 0:21a3f84ad1c9 | 59 | // Data Rate |
kenjiArai | 0:21a3f84ad1c9 | 60 | #define ADXL345_LOW_PWR 0x10 |
kenjiArai | 0:21a3f84ad1c9 | 61 | #define ADXL345_NOT_LOW_PWR 0x00 |
kenjiArai | 0:21a3f84ad1c9 | 62 | #define ADXL345_DR_R10HZ 0x00 |
kenjiArai | 0:21a3f84ad1c9 | 63 | #define ADXL345_DR_R20HZ 0x01 |
kenjiArai | 0:21a3f84ad1c9 | 64 | #define ADXL345_DR_R39HZ 0x02 |
kenjiArai | 0:21a3f84ad1c9 | 65 | #define ADXL345_DR_R78HZ 0x03 |
kenjiArai | 0:21a3f84ad1c9 | 66 | #define ADXL345_DR_1R56HZ 0x04 |
kenjiArai | 0:21a3f84ad1c9 | 67 | #define ADXL345_DR_3R13HZ 0x05 |
kenjiArai | 0:21a3f84ad1c9 | 68 | #define ADXL345_DR_6R25HZ 0x06 |
kenjiArai | 0:21a3f84ad1c9 | 69 | #define ADXL345_DR_12R5HZ 0x07 |
kenjiArai | 0:21a3f84ad1c9 | 70 | #define ADXL345_DR_25HZ 0x08 |
kenjiArai | 0:21a3f84ad1c9 | 71 | #define ADXL345_DR_50HZ 0x09 |
kenjiArai | 0:21a3f84ad1c9 | 72 | #define ADXL345_DR_100HZ 0x0A |
kenjiArai | 0:21a3f84ad1c9 | 73 | #define ADXL345_DR_200HZ 0x0B |
kenjiArai | 0:21a3f84ad1c9 | 74 | #define ADXL345_DR_400HZ 0x0C |
kenjiArai | 0:21a3f84ad1c9 | 75 | #define ADXL345_DR_800HZ 0x0D |
kenjiArai | 0:21a3f84ad1c9 | 76 | #define ADXL345_DR_1R6KHZ 0x0E |
kenjiArai | 0:21a3f84ad1c9 | 77 | #define ADXL345_DR_3R2KHZ 0x0F |
kenjiArai | 0:21a3f84ad1c9 | 78 | |
kenjiArai | 0:21a3f84ad1c9 | 79 | // FIFO Mode |
kenjiArai | 0:21a3f84ad1c9 | 80 | #define ADXL345_FIFO_BYPASS 0x00 // Not use FIFO |
kenjiArai | 0:21a3f84ad1c9 | 81 | #define ADXL345_FIFO_FIFO 0x40 // FIFO collects 32 then stop |
kenjiArai | 0:21a3f84ad1c9 | 82 | #define ADXL345_FIFO_STREAM 0x80 // last 32 & continue sampling |
kenjiArai | 0:21a3f84ad1c9 | 83 | #define ADXL345_FIFO_TRIGER 0xC0 // Start by trigger |
kenjiArai | 0:21a3f84ad1c9 | 84 | |
kenjiArai | 0:21a3f84ad1c9 | 85 | // FIFO Trigger Source |
kenjiArai | 0:21a3f84ad1c9 | 86 | #define ADXL345_FIFO_TRG_INT1 0x00 |
kenjiArai | 0:21a3f84ad1c9 | 87 | #define ADXL345_FIFO_TRG_INT2 0x20 |
kenjiArai | 0:21a3f84ad1c9 | 88 | |
kenjiArai | 0:21a3f84ad1c9 | 89 | // FIFO Trigger Source |
kenjiArai | 0:21a3f84ad1c9 | 90 | #define ADXL345_FIFO_SAMPLES 0x31 // default value |
kenjiArai | 0:21a3f84ad1c9 | 91 | |
kenjiArai | 0:21a3f84ad1c9 | 92 | // Full Scale |
kenjiArai | 0:21a3f84ad1c9 | 93 | #define ADXL345_FS_2G 0x00 |
kenjiArai | 0:21a3f84ad1c9 | 94 | #define ADXL345_FS_4G 0x01 |
kenjiArai | 0:21a3f84ad1c9 | 95 | #define ADXL345_FS_8G 0x02 |
kenjiArai | 0:21a3f84ad1c9 | 96 | #define ADXL345_FS_16G 0x03 |
kenjiArai | 0:21a3f84ad1c9 | 97 | #define ADXL345_FULL_RES_16G 0x0B |
kenjiArai | 0:21a3f84ad1c9 | 98 | |
kenjiArai | 0:21a3f84ad1c9 | 99 | /** Interface for Analog Devices : 3-axis accelerometer |
kenjiArai | 0:21a3f84ad1c9 | 100 | * Chip: ADXL345 |
kenjiArai | 0:21a3f84ad1c9 | 101 | * |
kenjiArai | 0:21a3f84ad1c9 | 102 | * @code |
kenjiArai | 0:21a3f84ad1c9 | 103 | * #include "mbed.h" |
kenjiArai | 0:21a3f84ad1c9 | 104 | * |
kenjiArai | 0:21a3f84ad1c9 | 105 | * // I2C Communication |
kenjiArai | 0:21a3f84ad1c9 | 106 | * I2C i2c(D14,D15); // SDA, SCL |
kenjiArai | 0:21a3f84ad1c9 | 107 | * ADXL345 acc(i2c); |
kenjiArai | 0:21a3f84ad1c9 | 108 | * |
kenjiArai | 0:21a3f84ad1c9 | 109 | * int main() { |
kenjiArai | 0:21a3f84ad1c9 | 110 | * float f[3]; |
kenjiArai | 0:21a3f84ad1c9 | 111 | * while(1){ |
kenjiArai | 0:21a3f84ad1c9 | 112 | * acc.read_data(f); |
kenjiArai | 0:21a3f84ad1c9 | 113 | * } |
kenjiArai | 0:21a3f84ad1c9 | 114 | * } |
kenjiArai | 0:21a3f84ad1c9 | 115 | * @endcode |
kenjiArai | 0:21a3f84ad1c9 | 116 | */ |
kenjiArai | 0:21a3f84ad1c9 | 117 | |
kenjiArai | 0:21a3f84ad1c9 | 118 | class ADXL345 |
kenjiArai | 0:21a3f84ad1c9 | 119 | { |
kenjiArai | 0:21a3f84ad1c9 | 120 | public: |
kenjiArai | 0:21a3f84ad1c9 | 121 | /** Configure data pin (with other devices on I2C line) |
kenjiArai | 0:21a3f84ad1c9 | 122 | * @param I2C PinName SDA &SDL |
kenjiArai | 0:21a3f84ad1c9 | 123 | * @param device address |
kenjiArai | 0:21a3f84ad1c9 | 124 | * @param output data rate selection, power down mode, 0.1Hz to 3.2KHz |
kenjiArai | 0:21a3f84ad1c9 | 125 | * @param full scale selection, +/-2g to +/-16g |
kenjiArai | 0:21a3f84ad1c9 | 126 | */ |
kenjiArai | 0:21a3f84ad1c9 | 127 | ADXL345(PinName p_sda, PinName p_scl, |
kenjiArai | 0:21a3f84ad1c9 | 128 | uint8_t addr, uint8_t data_rate, uint8_t fullscale); |
kenjiArai | 0:21a3f84ad1c9 | 129 | |
kenjiArai | 0:21a3f84ad1c9 | 130 | /** Configure data pin (with other devices on I2C line) |
kenjiArai | 0:21a3f84ad1c9 | 131 | * @param I2C previous definition |
kenjiArai | 0:21a3f84ad1c9 | 132 | * @param device address |
kenjiArai | 0:21a3f84ad1c9 | 133 | */ |
kenjiArai | 0:21a3f84ad1c9 | 134 | ADXL345(PinName p_sda, PinName p_scl, uint8_t addr); |
kenjiArai | 0:21a3f84ad1c9 | 135 | |
kenjiArai | 0:21a3f84ad1c9 | 136 | /** Configure data pin (with other devices on I2C line) |
kenjiArai | 0:21a3f84ad1c9 | 137 | * @param I2C previous definition |
kenjiArai | 0:21a3f84ad1c9 | 138 | */ |
kenjiArai | 0:21a3f84ad1c9 | 139 | ADXL345(PinName p_sda, PinName p_scl); |
kenjiArai | 0:21a3f84ad1c9 | 140 | |
kenjiArai | 0:21a3f84ad1c9 | 141 | /** Configure data pin (with other devices on I2C line) |
kenjiArai | 0:21a3f84ad1c9 | 142 | * @param I2C previous definition |
kenjiArai | 0:21a3f84ad1c9 | 143 | * @param device address |
kenjiArai | 0:21a3f84ad1c9 | 144 | * @param output data rate selection, power down mode, 0.1Hz to 3.2KHz |
kenjiArai | 0:21a3f84ad1c9 | 145 | * @param full scale selection, +/-2g to +/-16g |
kenjiArai | 0:21a3f84ad1c9 | 146 | */ |
kenjiArai | 0:21a3f84ad1c9 | 147 | ADXL345(I2C& p_i2c, |
kenjiArai | 0:21a3f84ad1c9 | 148 | uint8_t addr, uint8_t data_rate, uint8_t fullscale); |
kenjiArai | 0:21a3f84ad1c9 | 149 | |
kenjiArai | 0:21a3f84ad1c9 | 150 | /** Configure data pin (with other devices on I2C line) |
kenjiArai | 0:21a3f84ad1c9 | 151 | * @param I2C previous definition |
kenjiArai | 0:21a3f84ad1c9 | 152 | * @default output data rate selection = 100Hz |
kenjiArai | 0:21a3f84ad1c9 | 153 | * @default full scale selection = +/-2g |
kenjiArai | 0:21a3f84ad1c9 | 154 | */ |
kenjiArai | 0:21a3f84ad1c9 | 155 | ADXL345(I2C& p_i2c, uint8_t addr); |
kenjiArai | 0:21a3f84ad1c9 | 156 | |
kenjiArai | 0:21a3f84ad1c9 | 157 | /** Configure data pin (with other devices on I2C line) |
kenjiArai | 0:21a3f84ad1c9 | 158 | * @param I2C previous definition |
kenjiArai | 0:21a3f84ad1c9 | 159 | * @default address check both G & V |
kenjiArai | 0:21a3f84ad1c9 | 160 | * @default output data rate selection = 100Hz |
kenjiArai | 0:21a3f84ad1c9 | 161 | * @default full scale selection = +/-2g |
kenjiArai | 0:21a3f84ad1c9 | 162 | */ |
kenjiArai | 0:21a3f84ad1c9 | 163 | ADXL345(I2C& p_i2c); |
kenjiArai | 0:21a3f84ad1c9 | 164 | |
kenjiArai | 0:21a3f84ad1c9 | 165 | /** Read a float type data from acc |
kenjiArai | 0:21a3f84ad1c9 | 166 | * @param float type of three arry's address, e.g. float dt_usr[3]; |
kenjiArai | 0:21a3f84ad1c9 | 167 | * @return acc motion data unit: m/s/s(m/s2) |
kenjiArai | 0:21a3f84ad1c9 | 168 | * @return dt_usr[0]->x, dt_usr[1]->y, dt_usr[2]->z |
kenjiArai | 0:21a3f84ad1c9 | 169 | */ |
kenjiArai | 0:21a3f84ad1c9 | 170 | void read_data(float *dt_usr); |
kenjiArai | 0:21a3f84ad1c9 | 171 | |
kenjiArai | 0:21a3f84ad1c9 | 172 | /** Read a float type data from acc |
kenjiArai | 0:21a3f84ad1c9 | 173 | * @param float type of three arry's address, e.g. float dt_usr[3]; |
kenjiArai | 0:21a3f84ad1c9 | 174 | * @return acc motion data unit: mg |
kenjiArai | 0:21a3f84ad1c9 | 175 | * @return dt_usr[0]->x, dt_usr[1]->y, dt_usr[2]->z |
kenjiArai | 0:21a3f84ad1c9 | 176 | */ |
kenjiArai | 0:21a3f84ad1c9 | 177 | void read_mg_data(float *dt_usr); |
kenjiArai | 0:21a3f84ad1c9 | 178 | |
kenjiArai | 0:21a3f84ad1c9 | 179 | /** Read a float type data from acc |
kenjiArai | 0:21a3f84ad1c9 | 180 | * @param float type of three arry's address, e.g. float dt_usr[3]; |
kenjiArai | 0:21a3f84ad1c9 | 181 | * @return acc motion data unit: g |
kenjiArai | 0:21a3f84ad1c9 | 182 | * @return dt_usr[0]->x, dt_usr[1]->y, dt_usr[2]->z |
kenjiArai | 0:21a3f84ad1c9 | 183 | */ |
kenjiArai | 0:21a3f84ad1c9 | 184 | void read_g_data(float *dt_usr); |
kenjiArai | 0:21a3f84ad1c9 | 185 | |
kenjiArai | 0:21a3f84ad1c9 | 186 | /** Read a acc ID number |
kenjiArai | 0:21a3f84ad1c9 | 187 | * @param none |
kenjiArai | 0:21a3f84ad1c9 | 188 | * @return ID is okay (I_AM_ ADXL345(0x33)) or not |
kenjiArai | 0:21a3f84ad1c9 | 189 | */ |
kenjiArai | 0:21a3f84ad1c9 | 190 | uint8_t read_id(); |
kenjiArai | 0:21a3f84ad1c9 | 191 | |
kenjiArai | 0:21a3f84ad1c9 | 192 | /** Read Data Ready flag |
kenjiArai | 0:21a3f84ad1c9 | 193 | * @param none |
kenjiArai | 0:21a3f84ad1c9 | 194 | * @return true = Ready |
kenjiArai | 0:21a3f84ad1c9 | 195 | */ |
kenjiArai | 0:21a3f84ad1c9 | 196 | bool data_ready(); |
kenjiArai | 0:21a3f84ad1c9 | 197 | |
kenjiArai | 0:21a3f84ad1c9 | 198 | /** Set I2C clock frequency |
kenjiArai | 0:21a3f84ad1c9 | 199 | * @param freq. |
kenjiArai | 0:21a3f84ad1c9 | 200 | * @return none |
kenjiArai | 0:21a3f84ad1c9 | 201 | */ |
kenjiArai | 0:21a3f84ad1c9 | 202 | void frequency(int hz); |
kenjiArai | 0:21a3f84ad1c9 | 203 | |
kenjiArai | 0:21a3f84ad1c9 | 204 | /** Read register (general purpose) |
kenjiArai | 0:21a3f84ad1c9 | 205 | * @param register's address |
kenjiArai | 0:21a3f84ad1c9 | 206 | * @return register data |
kenjiArai | 0:21a3f84ad1c9 | 207 | */ |
kenjiArai | 0:21a3f84ad1c9 | 208 | uint8_t read_reg(uint8_t addr); |
kenjiArai | 0:21a3f84ad1c9 | 209 | |
kenjiArai | 0:21a3f84ad1c9 | 210 | /** Write register (general purpose) |
kenjiArai | 0:21a3f84ad1c9 | 211 | * @param register's address |
kenjiArai | 0:21a3f84ad1c9 | 212 | * @param data |
kenjiArai | 0:21a3f84ad1c9 | 213 | * @return none |
kenjiArai | 0:21a3f84ad1c9 | 214 | */ |
kenjiArai | 0:21a3f84ad1c9 | 215 | void write_reg(uint8_t addr, uint8_t data); |
kenjiArai | 0:21a3f84ad1c9 | 216 | |
kenjiArai | 0:21a3f84ad1c9 | 217 | /** data print for debug |
kenjiArai | 0:21a3f84ad1c9 | 218 | * @param none |
kenjiArai | 0:21a3f84ad1c9 | 219 | * @return none |
kenjiArai | 0:21a3f84ad1c9 | 220 | */ |
kenjiArai | 0:21a3f84ad1c9 | 221 | void debug_print(void); |
kenjiArai | 0:21a3f84ad1c9 | 222 | |
kenjiArai | 0:21a3f84ad1c9 | 223 | /** Self-Test Feature |
kenjiArai | 0:21a3f84ad1c9 | 224 | * @param none |
kenjiArai | 0:21a3f84ad1c9 | 225 | * @return none |
kenjiArai | 0:21a3f84ad1c9 | 226 | */ |
kenjiArai | 0:21a3f84ad1c9 | 227 | void self_test(void); |
kenjiArai | 0:21a3f84ad1c9 | 228 | |
kenjiArai | 0:21a3f84ad1c9 | 229 | protected: |
kenjiArai | 0:21a3f84ad1c9 | 230 | void initialize(uint8_t, uint8_t, uint8_t); |
kenjiArai | 0:21a3f84ad1c9 | 231 | void read_reg_data(char *data); |
kenjiArai | 0:21a3f84ad1c9 | 232 | void read_mg_g_data(float *dt_usr, uint8_t n); |
kenjiArai | 0:21a3f84ad1c9 | 233 | |
kenjiArai | 0:21a3f84ad1c9 | 234 | I2C *_i2c_p; |
kenjiArai | 0:21a3f84ad1c9 | 235 | I2C &_i2c; |
kenjiArai | 0:21a3f84ad1c9 | 236 | |
kenjiArai | 0:21a3f84ad1c9 | 237 | private: |
kenjiArai | 0:21a3f84ad1c9 | 238 | float fs_factor; // full scale factor |
kenjiArai | 0:21a3f84ad1c9 | 239 | char dt[2]; // working buffer |
kenjiArai | 0:21a3f84ad1c9 | 240 | uint8_t acc_addr; // acc sensor address |
kenjiArai | 0:21a3f84ad1c9 | 241 | uint8_t acc_id; // acc ID |
kenjiArai | 0:21a3f84ad1c9 | 242 | bool acc_ready; // acc is on I2C line = 1, not = 0 |
kenjiArai | 0:21a3f84ad1c9 | 243 | uint8_t setting_data[4]; // Reg. recovery data |
kenjiArai | 0:21a3f84ad1c9 | 244 | |
kenjiArai | 0:21a3f84ad1c9 | 245 | }; |
kenjiArai | 0:21a3f84ad1c9 | 246 | |
kenjiArai | 0:21a3f84ad1c9 | 247 | #endif // ADXL345_H |