mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-24 05:23:06 +00:00
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/**
|
|
* @file BH1750.h
|
|
* @author Oleksii Kutuzov (oleksii.kutuzov@icloud.com)
|
|
* @brief
|
|
* @version 0.1
|
|
* @date 2022-11-06
|
|
*
|
|
* @copyright Copyright (c) 2022
|
|
*
|
|
* Ported from:
|
|
* https://github.com/lamik/Light_Sensors_STM32
|
|
*/
|
|
|
|
#include <furi.h>
|
|
#include <furi_hal.h>
|
|
|
|
#ifndef BH1750_H_
|
|
#define BH1750_H_
|
|
|
|
// I2C BUS
|
|
#define I2C_BUS &furi_hal_i2c_handle_external
|
|
#define I2C_TIMEOUT 10
|
|
|
|
#define BH1750_ADDRESS (0x23 << 1)
|
|
|
|
#define BH1750_POWER_DOWN 0x00
|
|
#define BH1750_POWER_ON 0x01
|
|
#define BH1750_RESET 0x07
|
|
#define BH1750_DEFAULT_MTREG 69
|
|
#define BH1750_DEFAULT_MODE ONETIME_HIGH_RES_MODE
|
|
|
|
#define BH1750_CONVERSION_FACTOR 1.2
|
|
|
|
typedef enum { BH1750_OK = 0, BH1750_ERROR = 1 } BH1750_STATUS;
|
|
|
|
typedef enum {
|
|
CONTINUOUS_HIGH_RES_MODE = 0x10,
|
|
CONTINUOUS_HIGH_RES_MODE_2 = 0x11,
|
|
CONTINUOUS_LOW_RES_MODE = 0x13,
|
|
ONETIME_HIGH_RES_MODE = 0x20,
|
|
ONETIME_HIGH_RES_MODE_2 = 0x21,
|
|
ONETIME_LOW_RES_MODE = 0x23
|
|
} BH1750_mode;
|
|
|
|
/**
|
|
* @brief Initialize the sensor. Sends the reset command and sets the measurement register to the default value.
|
|
*
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_init();
|
|
|
|
/**
|
|
* @brief Change the I2C device address and then initialize the sensor.
|
|
*
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_init_with_addr(uint8_t addr);
|
|
|
|
/**
|
|
* @brief Reset all registers to the default value.
|
|
*
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_reset();
|
|
|
|
/**
|
|
* @brief Sets the power state. 1 - running; 0 - sleep, low power.
|
|
*
|
|
* @param PowerOn sensor state.
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_set_power_state(uint8_t PowerOn);
|
|
|
|
/**
|
|
* @brief Set the Measurement Time register. It allows to increase or decrease the sensitivity.
|
|
*
|
|
* @param MTreg value from 31 to 254, defaults to 69.
|
|
*
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_set_mt_reg(uint8_t MTreg);
|
|
|
|
/**
|
|
* @brief Set the mode of converting. Look into the bh1750_mode enum.
|
|
*
|
|
* @param Mode mode enumerator
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_set_mode(BH1750_mode Mode);
|
|
|
|
/**
|
|
* @brief Trigger the conversion in manual modes.
|
|
*
|
|
* @details a low-resolution mode, the conversion time is typically 16 ms, and for a high-resolution
|
|
* mode is 120 ms. You need to wait until reading the measurement value. There is no need
|
|
* to exit low-power mode for manual conversion. It makes automatically.
|
|
*
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_trigger_manual_conversion();
|
|
|
|
/**
|
|
* @brief Read the converted value and calculate the result.
|
|
*
|
|
* @param Result stores received value to this variable.
|
|
* @return BH1750_STATUS
|
|
*/
|
|
BH1750_STATUS bh1750_read_light(float* Result);
|
|
|
|
#endif /* BH1750_H_ */
|