Add bmp-280 support (#1581)

src/modules/Telemetry/Sensor/BMP280Sensor.cpp

@@ -0,0 +1,30 @@
+#include "../mesh/generated/telemetry.pb.h"
+#include "configuration.h"
+#include "TelemetrySensor.h"
+#include "BMP280Sensor.h"
+#include <Adafruit_BMP280.h>
+#include <typeinfo>
+
+BMP280Sensor::BMP280Sensor() : 
+    TelemetrySensor(TelemetrySensorType_BME280, "BMP280")
+{
+}
+
+int32_t BMP280Sensor::runOnce() {
+    DEBUG_MSG("Init sensor: %s\n", sensorName);
+    if (!hasSensor()) {
+        return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
+    }
+    status = bmp280.begin(nodeTelemetrySensorsMap[sensorType]); 
+    return initI2CSensor();
+}
+
+void BMP280Sensor::setup() { }
+
+bool BMP280Sensor::getMetrics(Telemetry *measurement) {
+    DEBUG_MSG("BMP280Sensor::getMetrics\n");
+    measurement->variant.environment_metrics.temperature = bmp280.readTemperature();
+    measurement->variant.environment_metrics.barometric_pressure = bmp280.readPressure() / 100.0F;
+
+    return true;
+}