Support SHT3x

examples/TestSht3x/TestSht3x.ino

@@ -0,0 +1,39 @@
+#include <AirGradient.h>
+
+AirGradient ag(DIY_BASIC);
+
+void failedHandler(String msg);
+
+void setup() {
+  Serial.begin(115200);
+  Wire.begin(ag.getI2cSdaPin(), ag.getI2cSclPin());
+
+  if (ag.sht3x.begin(Wire, Serial) == false) {
+    failedHandler("SHT3x init failed");
+  }
+}
+
+void loop() {
+  float temp = ag.sht3x.getTemperature();
+  if (temp <= -256.0f) {
+    Serial.println("Get temperature failed");
+  } else {
+    Serial.printf("Get temperature: %f\r\n", temp);
+  }
+
+  float hum = ag.sht3x.getRelativeHumidity();
+  if (hum < 0) {
+    Serial.println("Get humidity failed");
+  } else {
+    Serial.printf("Get humidity: %f\r\n", hum);
+  }
+
+  delay(1000);
+}
+
+void failedHandler(String msg) {
+  while (true) {
+    Serial.println(msg);
+    delay(1000);
+  }
+}