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35 lines
864 B
C
35 lines
864 B
C
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#include "configuration.h"
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#if !MESHTASTIC_EXCLUDE_AIR_QUALITY_SENSOR
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#include "../mesh/generated/meshtastic/telemetry.pb.h"
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#include "TelemetrySensor.h"
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#define PMSA003I_I2C_CLOCK_SPEED 100000
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#define PMSA003I_FRAME_LENGTH 32
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#define PMSA003I_WARMUP_MS 30000
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class PMSA003ISensor : public TelemetrySensor
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{
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public:
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PMSA003ISensor();
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virtual bool getMetrics(meshtastic_Telemetry *measurement) override;
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virtual bool initDevice(TwoWire *bus, ScanI2C::FoundDevice *dev) override;
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virtual bool isActive() override;
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virtual void sleep() override;
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virtual uint32_t wakeUp() override;
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private:
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enum class State { IDLE, ACTIVE };
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State state = State::ACTIVE;
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uint16_t computedChecksum = 0;
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uint16_t receivedChecksum = 0;
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uint8_t buffer[PMSA003I_FRAME_LENGTH]{};
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TwoWire * _bus{};
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uint8_t _address{};
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};
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#endif
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