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36 lines
1.4 KiB
C++
36 lines
1.4 KiB
C++
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#include "../mesh/generated/environmental_measurement.pb.h"
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#include "configuration.h"
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#include "EnvironmentalMeasurementSensor.h"
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#include "BME680Sensor.h"
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#include <Adafruit_BME680.h>
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BME680Sensor::BME680Sensor() : EnvironmentalMeasurementSensor {} {
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}
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int32_t BME680Sensor::runOnce() {
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unsigned bme680Status;
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// Default i2c address for BME680
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bme680Status = bme680.begin(0x76);
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if (!bme680Status) {
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DEBUG_MSG("Could not find a valid BME680 sensor, check wiring, address, sensor ID!");
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// TODO more verbose diagnosticsEnvironmentalMeasurementSensor
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} else {
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DEBUG_MSG("EnvironmentalMeasurement: Opened BME680 on default i2c bus");
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// Set up oversampling and filter initialization
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bme680.setTemperatureOversampling(BME680_OS_8X);
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bme680.setHumidityOversampling(BME680_OS_2X);
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bme680.setPressureOversampling(BME680_OS_4X);
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bme680.setIIRFilterSize(BME680_FILTER_SIZE_3);
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bme680.setGasHeater(320, 150); // 320*C for 150 ms
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}
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return (BME_680_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS);
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}
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bool BME680Sensor::getMeasurement(EnvironmentalMeasurement *measurement) {
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measurement->temperature = bme680.readTemperature();
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measurement->relative_humidity = bme680.readHumidity();
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measurement->barometric_pressure = bme680.readPressure() / 100.0F;
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measurement->gas_resistance = bme680.readGas() / 1000.0;
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return true;
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}
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