SHTC3 Sensor (RAK-1901) support (#1800)

src/modules/Telemetry/Sensor/SHTC3Sensor.cpp

@@ -0,0 +1,34 @@
+#include "../mesh/generated/telemetry.pb.h"
+#include "configuration.h"
+#include "TelemetrySensor.h"
+#include "SHTC3Sensor.h"
+#include <Adafruit_SHTC3.h>
+
+SHTC3Sensor::SHTC3Sensor() : 
+    TelemetrySensor(TelemetrySensorType_SHTC3, "SHTC3") 
+{
+}
+
+int32_t SHTC3Sensor::runOnce() {
+    DEBUG_MSG("Init sensor: %s\n", sensorName);
+    if (!hasSensor()) {
+        return DEFAULT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS;
+    }
+    status = shtc3.begin(); 
+    return initI2CSensor();
+}
+
+void SHTC3Sensor::setup() 
+{
+    // Set up oversampling and filter initialization
+}
+
+bool SHTC3Sensor::getMetrics(Telemetry *measurement) {
+    sensors_event_t humidity, temp;
+    shtc3.getEvent(&humidity, &temp);
+
+    measurement->variant.environment_metrics.temperature = temp.temperature;
+    measurement->variant.environment_metrics.relative_humidity = humidity.relative_humidity;
+
+    return true;
+}