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48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/components/i2c/i2c.h"
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namespace esphome {
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namespace bh1750 {
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/// Enum listing all resolutions that can be used with the BH1750
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enum BH1750Resolution {
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BH1750_RESOLUTION_4P0_LX = 0b00100011, // one-time low resolution mode
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BH1750_RESOLUTION_1P0_LX = 0b00100000, // one-time high resolution mode 1
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BH1750_RESOLUTION_0P5_LX = 0b00100001, // one-time high resolution mode 2
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};
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/// This class implements support for the i2c-based BH1750 ambient light sensor.
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class BH1750Sensor : public sensor::Sensor, public PollingComponent, public i2c::I2CDevice {
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public:
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/** Set the resolution of this sensor.
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*
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* Possible values are:
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*
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* - `BH1750_RESOLUTION_4P0_LX`
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* - `BH1750_RESOLUTION_1P0_LX`
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* - `BH1750_RESOLUTION_0P5_LX` (default)
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*
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* @param resolution The new resolution of the sensor.
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*/
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void set_resolution(BH1750Resolution resolution);
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void set_measurement_duration(uint8_t measurement_duration) { measurement_duration_ = measurement_duration; }
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// ========== INTERNAL METHODS ==========
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// (In most use cases you won't need these)
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void setup() override;
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void dump_config() override;
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void update() override;
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float get_setup_priority() const override;
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protected:
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void read_data_();
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BH1750Resolution resolution_{BH1750_RESOLUTION_0P5_LX};
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uint8_t measurement_duration_;
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};
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} // namespace bh1750
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} // namespace esphome
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