Powersaving implemented. The web update mechanism is disabled.

firmware/config.h

@@ -1,5 +1,7 @@
 
-#define DEBUG 1
+//#define DEBUG 1
+
+#define POWERSAVING 1
 
 #define SENSOR_TEMPERATURE    0
 #define SENSOR_HUMIDITY       1
@@ -8,9 +10,10 @@
 #define SENSOR_PRESSURE       4
 #define SENSOR_BAT_VOLTAGE    5
 
-#define UPDATE_SENSOR_INTERVAL_S     10
-#define UPDATE_WEBSERVER_INTVERVAL_S  1
-#define DELAY_LOOP_MS                50
+#define UPDATE_SENSOR_INTERVAL_S      10
+#define UPDATE_WEBSERVER_INTVERVAL_S   1
+#define DELAY_LOOP_MS                 50
+#define POWERSAVING_SLEEP_S          10
 
 #define STATUS_LED_PIN        BUILTIN_LED
 #define ANEMOMETER_PIN        D7

firmware/firmware.ino

@@ -60,6 +60,8 @@ void setup() {
   pinMode(ANEMOMETER_PIN, INPUT_PULLUP);
   pinMode(A0, INPUT);
 
+  digitalWrite(STATUS_LED_PIN, HIGH);
+
   // Establish WiFi connection
   String wifiName = "oko-weather-" + String(ESP.getChipId());
   wifiManager.setMinimumSignalQuality(15);
@@ -85,34 +87,72 @@ void setup() {
 
   bool status = bme.begin(0x76);
   if (!status) {
+#ifdef DEBUG
     Serial.println("Could not find a valid BME280 sensor, check wiring!");
+#endif
     while (1);
   }
 
+#ifndef POWERSAVING
   setupWebUpdater();
+#endif
 
   localIP = WiFi.localIP().toString();
 
   delay(100);
 
+#ifdef POWERSAVING
+  _loop();
+
   digitalWrite(STATUS_LED_PIN, LOW);
+
+  WiFi.mode(WIFI_OFF);
+  WiFi.forceSleepBegin();
+
+  // the ESP.deepSleep requires microseconds as input, after the sleep the system will run into the setup routine
+  ESP.deepSleep(POWERSAVING_SLEEP_S * 1000000, WAKE_RF_DEFAULT);
+
+#endif
+
 }
 
 //*************************************************************************//
 
 void loop() {
 
+#ifdef POWERSAVING
+  delay(50);
+  return;
+#endif
+
   if (UPDATE_WEBSERVER_INTVERVAL_S * 1000 / DELAY_LOOP_MS <= update_webserver_cnt) {
     update_webserver_cnt = 0;
     doWebUpdater();
   }
 
-#ifdef DEBUG
-  digitalWrite(STATUS_LED_PIN, HIGH);
-#endif
+  _loop();
 
+  delay(DELAY_LOOP_MS);
+
+  if (currentSensorData[SENSOR_BAT_VOLTAGE] <= 3.4)
+  {
+#ifdef DEBUG
+    Serial.println("Low battery, going into deep sleep.");
+#endif
+    ESP.deepSleep(4294967295); // battery low, shutting down
+  }
+
+  update_sensor_cnt++;
+  update_webserver_cnt++;
+}
+
+void _loop() {
+
+#ifndef POWERSAVING
   if (UPDATE_SENSOR_INTERVAL_S * 1000 / DELAY_LOOP_MS <= update_sensor_cnt) {
     update_sensor_cnt = 0;
+#endif
+
     currentSensorData[SENSOR_TEMPERATURE] = fetchTemperature();
     currentSensorData[SENSOR_HUMIDITY]    = fetchHumidity();
     currentSensorData[SENSOR_LIGHT]       = fetchLight();
@@ -120,10 +160,6 @@ void loop() {
     currentSensorData[SENSOR_PRESSURE]    = fetchPressure();
     currentSensorData[SENSOR_BAT_VOLTAGE] = getBatteryVoltage();
 
-    if (currentSensorData[SENSOR_BAT_VOLTAGE] <= 3.7)
-    {
-      ESP.deepSleep(4294967295); // battery low, shutting down
-    }
 #ifdef DEBUG
     Serial.println("");
     //Serial.println("Current readings:");
@@ -135,16 +171,15 @@ void loop() {
     Serial.println("Bat Voltage: " + String(currentSensorData[SENSOR_BAT_VOLTAGE]) + " V");
 #endif
 
+    delay(100);
+
     pushToInfluxDB(DEVICE_NAME, currentSensorData);
+
+#ifndef POWERSAVING
     setSensorData(DEVICE_NAME, localIP, currentSensorData);
   }
+#endif
 
-  //ESP.deepSleep(DELAY_LOOP_MS * 1000); // the ESP.deepSleep requires microseconds as input, after the sleep the system will run into the setup routine
-  //delay(100);
-  delay(DELAY_LOOP_MS);
-
-  update_sensor_cnt++;
-  update_webserver_cnt++;
 }
 
 //*************************************************************************//

firmware/influxdb.ino

@@ -1,12 +1,26 @@
 
 void pushToInfluxDB(String device, float sensorValues[]) {
 
-  influxdb.write("weather,device=" + device + " temperature=" + String(sensorValues[SENSOR_TEMPERATURE]));
+  /*influxdb.write("weather,device=" + device + " temperature=" + String(sensorValues[SENSOR_TEMPERATURE]));
   influxdb.write("weather,device=" + device + " humidity=" + String(sensorValues[SENSOR_HUMIDITY]));
   influxdb.write("weather,device=" + device + " light=" + String(sensorValues[SENSOR_LIGHT]));
   influxdb.write("weather,device=" + device + " windspeed=" + String(sensorValues[SENSOR_WINDSPEED]));
   influxdb.write("weather,device=" + device + " pressure=" + String(sensorValues[SENSOR_PRESSURE]));
-  influxdb.write("weather,device=" + device + " batvoltage=" + String(sensorValues[SENSOR_BAT_VOLTAGE]));
+  influxdb.write("weather,device=" + device + " batvoltage=" + String(sensorValues[SENSOR_BAT_VOLTAGE]));*/
+
+  String msg = "weather,device=" + device + " temperature=" + String(sensorValues[SENSOR_TEMPERATURE])
+               + ",humidity=" + String(sensorValues[SENSOR_HUMIDITY])
+               + ",light=" + String(sensorValues[SENSOR_LIGHT])
+               + ",windspeed=" + String(sensorValues[SENSOR_WINDSPEED])
+               + ",pressure=" + String(sensorValues[SENSOR_PRESSURE])
+               + ",batvoltage=" + String(sensorValues[SENSOR_BAT_VOLTAGE]);
+
+  uint8_t tries = 0;
+  do {
+    tries++;
+    influxdb.write(msg);
+  } while (influxdb.response() != DB_SUCCESS and tries < 5);
+
 
 }
 

firmware/sensors.ino

@@ -19,7 +19,7 @@ float fetchHumidity() {
 float fetchLight() {
   uint16_t red, green, blue, white;
   
-  while(!apds.colorDataReady()){
+  while(!apds.colorDataReady()) {
     delay(5);
   }