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https://github.com/meshtastic/firmware.git
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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
#include "configuration.h"
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#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
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#include "BMP3XXSensor.h"
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BMP3XXSensor::BMP3XXSensor() : TelemetrySensor(meshtastic_TelemetrySensorType_BMP3XX, "BMP3XX") {}
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void BMP3XXSensor::setup() {}
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int32_t BMP3XXSensor::runOnce()
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{
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LOG_INFO("Init sensor: %s\n", sensorName);
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if (!hasSensor()) {
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return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
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}
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// Get a singleton instance and initialise the bmp3xx
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if (bmp3xx == nullptr) {
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bmp3xx = BMP3XXSingleton::GetInstance();
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}
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status = bmp3xx->begin_I2C(nodeTelemetrySensorsMap[sensorType].first, nodeTelemetrySensorsMap[sensorType].second);
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// set up oversampling and filter initialization
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bmp3xx->setTemperatureOversampling(BMP3_OVERSAMPLING_4X);
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bmp3xx->setPressureOversampling(BMP3_OVERSAMPLING_8X);
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bmp3xx->setIIRFilterCoeff(BMP3_IIR_FILTER_COEFF_3);
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bmp3xx->setOutputDataRate(BMP3_ODR_25_HZ);
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// take a couple of initial readings to settle the sensor filters
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for (int i = 0; i < 3; i++) {
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bmp3xx->performReading();
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}
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return initI2CSensor();
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}
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bool BMP3XXSensor::getMetrics(meshtastic_Telemetry *measurement)
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{
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if (bmp3xx == nullptr) {
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bmp3xx = BMP3XXSingleton::GetInstance();
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}
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if ((int)measurement->which_variant == meshtastic_Telemetry_environment_metrics_tag) {
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bmp3xx->performReading();
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measurement->variant.environment_metrics.has_temperature = true;
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measurement->variant.environment_metrics.has_barometric_pressure = true;
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measurement->variant.environment_metrics.has_relative_humidity = false;
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measurement->variant.environment_metrics.temperature = static_cast<float>(bmp3xx->temperature);
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measurement->variant.environment_metrics.barometric_pressure = static_cast<float>(bmp3xx->pressure) / 100.0F;
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measurement->variant.environment_metrics.relative_humidity = 0.0f;
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LOG_DEBUG("BMP3XXSensor::getMetrics id: %i temp: %.1f press %.1f\n", measurement->which_variant,
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measurement->variant.environment_metrics.temperature,
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measurement->variant.environment_metrics.barometric_pressure);
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} else {
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LOG_DEBUG("BMP3XXSensor::getMetrics id: %i\n", measurement->which_variant);
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}
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return true;
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}
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// Get a singleton wrapper for an Adafruit_bmp3xx
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BMP3XXSingleton *BMP3XXSingleton::GetInstance()
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{
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if (pinstance == nullptr) {
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pinstance = new BMP3XXSingleton();
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}
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return pinstance;
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}
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BMP3XXSingleton::BMP3XXSingleton() {}
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BMP3XXSingleton::~BMP3XXSingleton() {}
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BMP3XXSingleton *BMP3XXSingleton::pinstance{nullptr};
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bool BMP3XXSingleton::performReading()
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{
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bool result = Adafruit_BMP3XX::performReading();
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if (result) {
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double atmospheric = this->pressure / 100.0;
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altitudeAmslMetres = 44330.0 * (1.0 - pow(atmospheric / SEAL_LEVEL_HPA, 0.1903));
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} else {
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altitudeAmslMetres = 0.0;
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}
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return result;
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}
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#endif |