first commit

src/sht31.h

@@ -0,0 +1,52 @@
+#include <Adafruit_SHT31.h>
+
+Adafruit_SHT31 sht31 = Adafruit_SHT31();
+
+void setup_sht() {
+    if (! sht31.begin(0x44)) {   // Set to 0x45 for alternate i2c addr
+        Serial.println("Couldn't find SHT31");
+    }
+    sht31.heater(1);
+    Serial.print("Heater Enabled State: ");
+    if (sht31.isHeaterEnabled())
+        Serial.println("ENABLED");
+    else
+        Serial.println("DISABLED");
+}
+
+void loop_sht(JsonObject &root) {
+    JsonObject sht = root.createNestedObject("sht31");
+  float t = sht31.readTemperature();
+  float h = sht31.readHumidity();
+  sht["temperature"] = t;
+    sht["humidity"] = h;
+
+/*
+  if (! isnan(t)) {  // check if 'is not a number'
+    Serial.print("Temp *C = "); Serial.print(t); Serial.print("\t\t");
+  } else { 
+    Serial.println("Failed to read temperature");
+  }
+  
+  if (! isnan(h)) {  // check if 'is not a number'
+    Serial.print("Hum. % = "); Serial.println(h);
+  } else { 
+    Serial.println("Failed to read humidity");
+  }
+
+  // Toggle heater enabled state every 30 seconds
+  // An ~3.0 degC temperature increase can be noted when heater is enabled
+  /*
+  if (++loopCnt == 30) {
+    enableHeater = !enableHeater;
+    sht31.heater(enableHeater);
+    Serial.print("Heater Enabled State: ");
+    if (sht31.isHeaterEnabled())
+      Serial.println("ENABLED");
+    else
+      Serial.println("DISABLED");
+
+    loopCnt = 0;
+  }
+  */
+}