63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
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#ifndef __BH1750_DEFS_H_
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#define __BH1750_DEFS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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// 定义BH1750测量结果的高低位数据寄存器
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#define BH1750_DATA_HIGH 0x00
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#define BH1750_DATA_LOW 0x01
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// No active state
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#define BH1750_POWER_DOWN 0x00
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// Wating for measurment command
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#define BH1750_POWER_ON 0x01
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// Reset data register value - not accepted in POWER_DOWN mode
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#define BH1750_RESET 0x07
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// Start measurement at 1lx resolution. Measurement time is approx 120ms.
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#define BH1750_CONTINUOUS_HIGH_RES_MODE 0x10
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// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
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#define BH1750_CONTINUOUS_HIGH_RES_MODE_2 0x11
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// Start measurement at 4lx resolution. Measurement time is approx 16ms.
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#define BH1750_CONTINUOUS_LOW_RES_MODE 0x13
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// Start measurement at 1lx resolution. Measurement time is approx 120ms.
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// Device is automatically set to Power Down after measurement.
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#define BH1750_ONE_TIME_HIGH_RES_MODE 0x20
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// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
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// Device is automatically set to Power Down after measurement.
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#define BH1750_ONE_TIME_HIGH_RES_MODE_2 0x21
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// Start measurement at 1lx resolution. Measurement time is approx 120ms.
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// Device is automatically set to Power Down after measurement.
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#define BH1750_ONE_TIME_LOW_RES_MODE 0x23
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enum bh1750_intf {
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/*! SPI interface */
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SW_SPI_INTF,
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/*! I2C interface */
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HW_I2C_INTF
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};
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struct bh1750_data
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{
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uint8_t status;
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uint8_t raw[2];
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uint16_t lux;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif
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