Rohm BH1749NUC color sensor library
Dependents: rohm-SensorShield-example
BH1749NUC.h@0:fe0f43b69595, 2019-02-27 (annotated)
- Committer:
- MACRUM
- Date:
- Wed Feb 27 06:48:28 2019 +0000
- Revision:
- 0:fe0f43b69595
Initial commit
Who changed what in which revision?
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MACRUM | 0:fe0f43b69595 | 1 | /***************************************************************************** |
MACRUM | 0:fe0f43b69595 | 2 | BH1749NUC.h |
MACRUM | 0:fe0f43b69595 | 3 | |
MACRUM | 0:fe0f43b69595 | 4 | Copyright (c) 2018 ROHM Co.,Ltd. |
MACRUM | 0:fe0f43b69595 | 5 | |
MACRUM | 0:fe0f43b69595 | 6 | Permission is hereby granted, free of charge, to any person obtaining a copy |
MACRUM | 0:fe0f43b69595 | 7 | of this software and associated documentation files (the "Software"), to deal |
MACRUM | 0:fe0f43b69595 | 8 | in the Software without restriction, including without limitation the rights |
MACRUM | 0:fe0f43b69595 | 9 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
MACRUM | 0:fe0f43b69595 | 10 | copies of the Software, and to permit persons to whom the Software is |
MACRUM | 0:fe0f43b69595 | 11 | furnished to do so, subject to the following conditions: |
MACRUM | 0:fe0f43b69595 | 12 | |
MACRUM | 0:fe0f43b69595 | 13 | The above copyright notice and this permission notice shall be included in |
MACRUM | 0:fe0f43b69595 | 14 | all copies or substantial portions of the Software. |
MACRUM | 0:fe0f43b69595 | 15 | |
MACRUM | 0:fe0f43b69595 | 16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
MACRUM | 0:fe0f43b69595 | 17 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
MACRUM | 0:fe0f43b69595 | 18 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
MACRUM | 0:fe0f43b69595 | 19 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
MACRUM | 0:fe0f43b69595 | 20 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
MACRUM | 0:fe0f43b69595 | 21 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
MACRUM | 0:fe0f43b69595 | 22 | THE SOFTWARE. |
MACRUM | 0:fe0f43b69595 | 23 | ******************************************************************************/ |
MACRUM | 0:fe0f43b69595 | 24 | #ifndef _BH1749NUC_H_ |
MACRUM | 0:fe0f43b69595 | 25 | #define _BH1749NUC_H_ |
MACRUM | 0:fe0f43b69595 | 26 | |
MACRUM | 0:fe0f43b69595 | 27 | #include "mbed.h" |
MACRUM | 0:fe0f43b69595 | 28 | |
MACRUM | 0:fe0f43b69595 | 29 | #ifdef _DEBUG |
MACRUM | 0:fe0f43b69595 | 30 | #undef DEBUG_PRINT |
MACRUM | 0:fe0f43b69595 | 31 | #define DEBUG_PRINT(...) printf(__VA_ARGS__) |
MACRUM | 0:fe0f43b69595 | 32 | #else |
MACRUM | 0:fe0f43b69595 | 33 | #define DEBUG_PRINT(...) |
MACRUM | 0:fe0f43b69595 | 34 | #endif |
MACRUM | 0:fe0f43b69595 | 35 | |
MACRUM | 0:fe0f43b69595 | 36 | #define BH1749NUC_DEVICE_ADDRESS_38 (0x38 << 1) // 7bit Addrss |
MACRUM | 0:fe0f43b69595 | 37 | #define BH1749NUC_DEVICE_ADDRESS_39 (0x39 << 1) // 7bit Addrss |
MACRUM | 0:fe0f43b69595 | 38 | #define BH1749NUC_PART_ID_VAL (0x0D) |
MACRUM | 0:fe0f43b69595 | 39 | #define BH1749NUC_MANUFACT_ID_VAL (0xE0) |
MACRUM | 0:fe0f43b69595 | 40 | |
MACRUM | 0:fe0f43b69595 | 41 | #define BH1749NUC_SYSTEM_CONTROL (0x40) |
MACRUM | 0:fe0f43b69595 | 42 | #define BH1749NUC_MODE_CONTROL1 (0x41) |
MACRUM | 0:fe0f43b69595 | 43 | #define BH1749NUC_MODE_CONTROL2 (0x42) |
MACRUM | 0:fe0f43b69595 | 44 | #define BH1749NUC_RED_DATA_LSB (0x50) |
MACRUM | 0:fe0f43b69595 | 45 | #define BH1749NUC_MANUFACTURER_ID (0x92) |
MACRUM | 0:fe0f43b69595 | 46 | |
MACRUM | 0:fe0f43b69595 | 47 | #define BH1749NUC_MODE_CONTROL1_MEAS_MODE_120MS (2) |
MACRUM | 0:fe0f43b69595 | 48 | #define BH1749NUC_MODE_CONTROL1_MEAS_MODE_240MS (3) |
MACRUM | 0:fe0f43b69595 | 49 | #define BH1749NUC_MODE_CONTROL1_RGB_GAIN_X1 (1 << 3) |
MACRUM | 0:fe0f43b69595 | 50 | #define BH1749NUC_MODE_CONTROL1_RGB_GAIN_X32 (3 << 3) |
MACRUM | 0:fe0f43b69595 | 51 | #define BH1749NUC_MODE_CONTROL1_IR_GAIN_X1 (1 << 5) |
MACRUM | 0:fe0f43b69595 | 52 | #define BH1749NUC_MODE_CONTROL1_IR_GAIN_X32 (3 << 5) |
MACRUM | 0:fe0f43b69595 | 53 | #define BH1749NUC_MODE_CONTROL2_RGB_EN (1 << 4) |
MACRUM | 0:fe0f43b69595 | 54 | |
MACRUM | 0:fe0f43b69595 | 55 | #define BH1749NUC_MODE_CONTROL1_VAL (BH1749NUC_MODE_CONTROL1_MEAS_MODE_120MS | BH1749NUC_MODE_CONTROL1_RGB_GAIN_X1 | BH1749NUC_MODE_CONTROL1_IR_GAIN_X1) |
MACRUM | 0:fe0f43b69595 | 56 | #define BH1749NUC_MODE_CONTROL2_VAL (BH1749NUC_MODE_CONTROL2_RGB_EN) |
MACRUM | 0:fe0f43b69595 | 57 | |
MACRUM | 0:fe0f43b69595 | 58 | #define GET_BYTE_RED_TO_GREEN2 (12) |
MACRUM | 0:fe0f43b69595 | 59 | #define WAIT_TMT2_MAX (340) |
MACRUM | 0:fe0f43b69595 | 60 | |
MACRUM | 0:fe0f43b69595 | 61 | /** Interface for controlling BME280 Combined humidity and pressure sensor |
MACRUM | 0:fe0f43b69595 | 62 | * |
MACRUM | 0:fe0f43b69595 | 63 | * @code |
MACRUM | 0:fe0f43b69595 | 64 | * #include "mbed.h" |
MACRUM | 0:fe0f43b69595 | 65 | * #include "BH1749NUC.h" |
MACRUM | 0:fe0f43b69595 | 66 | * |
MACRUM | 0:fe0f43b69595 | 67 | * BH1749NUC color(I2C_SDA, I2C_SCL); |
MACRUM | 0:fe0f43b69595 | 68 | * |
MACRUM | 0:fe0f43b69595 | 69 | * int main(void) { |
MACRUM | 0:fe0f43b69595 | 70 | * uint16_t buf[5]; |
MACRUM | 0:fe0f43b69595 | 71 | * color.init(); |
MACRUM | 0:fe0f43b69595 | 72 | * |
MACRUM | 0:fe0f43b69595 | 73 | * while (1) { |
MACRUM | 0:fe0f43b69595 | 74 | * color.get_val(buf); |
MACRUM | 0:fe0f43b69595 | 75 | * printf("BH1749 color : [R] %04x, [G] %04x, [B] %04x, [IR] %04x, [G2] %04x\n", buf[0], buf[1], buf[2], buf[3], buf[4]); |
MACRUM | 0:fe0f43b69595 | 76 | * wait(1); |
MACRUM | 0:fe0f43b69595 | 77 | * } |
MACRUM | 0:fe0f43b69595 | 78 | * } |
MACRUM | 0:fe0f43b69595 | 79 | * @endcode |
MACRUM | 0:fe0f43b69595 | 80 | */ |
MACRUM | 0:fe0f43b69595 | 81 | |
MACRUM | 0:fe0f43b69595 | 82 | /** BH1749NUC class |
MACRUM | 0:fe0f43b69595 | 83 | * |
MACRUM | 0:fe0f43b69595 | 84 | * BH1749NUC: A library to correct color data using Rohm BH1749NUC color sensor device |
MACRUM | 0:fe0f43b69595 | 85 | * |
MACRUM | 0:fe0f43b69595 | 86 | */ |
MACRUM | 0:fe0f43b69595 | 87 | class BH1749NUC |
MACRUM | 0:fe0f43b69595 | 88 | { |
MACRUM | 0:fe0f43b69595 | 89 | public: |
MACRUM | 0:fe0f43b69595 | 90 | /** Create a BH1749NUC instance |
MACRUM | 0:fe0f43b69595 | 91 | * which is connected to specified I2C pins with specified address |
MACRUM | 0:fe0f43b69595 | 92 | * |
MACRUM | 0:fe0f43b69595 | 93 | * @param sda I2C-bus SDA pin |
MACRUM | 0:fe0f43b69595 | 94 | * @param sdl I2C-bus SCL pin |
MACRUM | 0:fe0f43b69595 | 95 | * @param addr slave address of the I2C peripheral (default: 0x72) |
MACRUM | 0:fe0f43b69595 | 96 | */ |
MACRUM | 0:fe0f43b69595 | 97 | BH1749NUC(PinName sda, PinName scl, int addr = BH1749NUC_DEVICE_ADDRESS_39); |
MACRUM | 0:fe0f43b69595 | 98 | /** |
MACRUM | 0:fe0f43b69595 | 99 | * BH1749NUC destructor |
MACRUM | 0:fe0f43b69595 | 100 | */ |
MACRUM | 0:fe0f43b69595 | 101 | ~BH1749NUC(); |
MACRUM | 0:fe0f43b69595 | 102 | /** |
MACRUM | 0:fe0f43b69595 | 103 | * Initialize BH1749NUC device |
MACRUM | 0:fe0f43b69595 | 104 | */ |
MACRUM | 0:fe0f43b69595 | 105 | int init(void) ; |
MACRUM | 0:fe0f43b69595 | 106 | /** |
MACRUM | 0:fe0f43b69595 | 107 | * Get color sensor raw value |
MACRUM | 0:fe0f43b69595 | 108 | * @param data buffer to store raw data |
MACRUM | 0:fe0f43b69595 | 109 | */ |
MACRUM | 0:fe0f43b69595 | 110 | int get_rawval(char *data); |
MACRUM | 0:fe0f43b69595 | 111 | /** |
MACRUM | 0:fe0f43b69595 | 112 | * Get color sensor value |
MACRUM | 0:fe0f43b69595 | 113 | * @param data buffer to store sensor data (R, B, G, IR and G2) |
MACRUM | 0:fe0f43b69595 | 114 | */ |
MACRUM | 0:fe0f43b69595 | 115 | int get_val(unsigned short *data); |
MACRUM | 0:fe0f43b69595 | 116 | private: |
MACRUM | 0:fe0f43b69595 | 117 | int write(char memory_address, char *data, int size); |
MACRUM | 0:fe0f43b69595 | 118 | int read(char memory_address, char *data, int size); |
MACRUM | 0:fe0f43b69595 | 119 | I2C m_i2c; |
MACRUM | 0:fe0f43b69595 | 120 | int m_addr; |
MACRUM | 0:fe0f43b69595 | 121 | }; |
MACRUM | 0:fe0f43b69595 | 122 | |
MACRUM | 0:fe0f43b69595 | 123 | #endif // _BH1749NUC_H_ |