Report driver values on websocket connection

code/src/dht.ino

@@ -13,10 +13,21 @@ Copyright (C) 2016 by Xose Pérez <xose dot perez at gmail dot com>
 
 DHT dht(DHT_PIN, DHT_TYPE, DHT_TIMING);
 
+char temperature[6];
+char humidity[6];
+
 // -----------------------------------------------------------------------------
 // DHT
 // -----------------------------------------------------------------------------
 
+char * getTemperature() {
+    return temperature;
+}
+
+char * getHumidity() {
+    return humidity;
+}
+
 void dhtSetup() {
     dht.begin();
 }
@@ -41,8 +52,6 @@ void dhtLoop() {
 
         } else {
 
-            char temperature[6];
-            char humidity[6];
             dtostrf(t, 4, 1, temperature);
             itoa((int) h, humidity, 10);
 

code/src/emon.ino

@@ -13,6 +13,7 @@ Copyright (C) 2016 by Xose Pérez <xose dot perez at gmail dot com>
 
 EmonLiteESP emon;
 double current;
+char power[8];
 
 // -----------------------------------------------------------------------------
 // EMON
@@ -21,6 +22,11 @@ double current;
 void setCurrentRatio(float value) {
     emon.setCurrentRatio(value);
 }
+
+char * getPower() {
+    return power;
+}
+
 double getCurrent() {
     return current;
 }
@@ -42,6 +48,7 @@ void powerMonitorSetup() {
 void powerMonitorLoop() {
 
     static unsigned long next_measurement = millis();
+    static bool warmup = true;
     static byte measurements = 0;
     static double max = 0;
     static double min = 0;
@@ -49,6 +56,11 @@ void powerMonitorLoop() {
 
     if (!mqttConnected()) return;
 
+    if (warmup) {
+        warmup = false;
+        emon.warmup();
+    }
+
     if (millis() > next_measurement) {
 
         // Safety check: do not read current if relay is OFF
@@ -80,10 +92,9 @@ void powerMonitorLoop() {
 
         // Send MQTT messages averaged every EMON_MEASUREMENTS
         if (measurements == EMON_MEASUREMENTS) {
-            char buffer[8];
-            double power = (sum - max - min) * mainsVoltage / (measurements - 2);
-            sprintf(buffer, "%d", int(power));
-            mqttSend((char *) getSetting("emonPowerTopic", EMON_POWER_TOPIC).c_str(), buffer);
+            double p = (sum - max - min) * mainsVoltage / (measurements - 2);
+            sprintf(power, "%d", int(p));
+            mqttSend((char *) getSetting("emonPowerTopic", EMON_POWER_TOPIC).c_str(), power);
             sum = 0;
             measurements = 0;
         }

code/src/websockets.ino

@@ -55,12 +55,18 @@ void webSocketStart(uint8_t num) {
     root["relayStatus"] = digitalRead(RELAY_PIN) == HIGH;
     root["relayMode"] = getSetting("relayMode", String(RELAY_MODE));
 
+    #if ENABLE_DHT
+        root["temperature"] = getTemperature();
+        root["humidity"] = getHumidity();
+    #endif
+
     #if ENABLE_RF
         root["rfChannel"] = getSetting("rfChannel", String(RF_CHANNEL));
         root["rfDevice"] = getSetting("rfDevice", String(RF_DEVICE));
     #endif
 
     #if ENABLE_EMON
+        root["power"] = getPower();
         root["pwMainsVoltage"] = getSetting("pwMainsVoltage", String(EMON_MAINS_VOLTAGE));
         root["pwCurrentRatio"] = getSetting("pwCurrentRatio", String(EMON_CURRENT_RATIO));
     #endif