INA219 voltage sensor

GenStart.ino

@@ -1,19 +1,18 @@
+#include <Wire.h>
+#include "DFRobot_INA219.h"
 #include <ESP8266WiFi.h>
 #include <ArduinoMqttClient.h>
 #include <ArduinoJson.h>
 
 #include "secrets.h"
 
-
+DFRobot_INA219_IIC     ina219(&Wire, INA219_I2C_ADDRESS1);
 WiFiClient wifiClient;
 MqttClient mqttClient(wifiClient);
 
+float ina219Reading_mA = 1000;
+float extMeterReading_mA = 1000;
 
-//pin 0 red led
-//pin 2 blue led
-//#include <secrets>;
-
-// constants won't change:
 const long interval = 10000;  // interval at which to read voltage and report
 unsigned long previousMillis = 0;  // will store last time LED was updated
 
@@ -25,16 +24,14 @@ int sensorValue = 0;
  char json[200];
  int myMessage;
  int myPin;
+ 
 void setup()
 {
   Serial.begin(115200);
   Serial.println();
 
-  pinMode(0, OUTPUT);
-  digitalWrite(0, HIGH);
-
-  pinMode(4, OUTPUT);
-  digitalWrite(4, LOW);
+  pinMode(15, OUTPUT);
+  digitalWrite(15, LOW);
   pinMode(12, OUTPUT);
   digitalWrite(12, LOW);
   pinMode(14, OUTPUT);
@@ -66,13 +63,20 @@ void setup()
   
 
 
- // subscribe to a topic
- mqttClient.subscribe("test1");
- mqttClient.subscribe("test2");
- mqttClient.subscribe("test3");
-
+   // subscribe to a topic
+   mqttClient.subscribe("Generator1");
+   mqttClient.subscribe("Generator2");
+   mqttClient.subscribe("Generator3");
 
 
+    //Initialize the sensor
+    while(ina219.begin() != true) {
+        Serial.println("INA219 begin faild");
+        delay(2000);
+    }
+    //Linear calibration
+    ina219.linearCalibrate(/*The measured current before calibration*/ina219Reading_mA, /*The current measured by other current testers*/extMeterReading_mA);
+    Serial.println();
 
 }
 
@@ -87,13 +91,13 @@ void loop() {
     Serial.println(" bytes:");
 
     myPin=0;
-    if(mqttClient.messageTopic()=="test1"){
-      myPin=4;
+    if(mqttClient.messageTopic()=="Generator1"){
+      myPin=15;
     }
-    if(mqttClient.messageTopic()=="test2"){
+    if(mqttClient.messageTopic()=="Generator2"){
       myPin=12;
     }
-    if(mqttClient.messageTopic()=="test3"){
+    if(mqttClient.messageTopic()=="Generator3"){
       myPin=14;
     }
 
@@ -124,13 +128,14 @@ void loop() {
     unsigned long currentMillis = millis();
     if (currentMillis - previousMillis >= interval) {
       previousMillis = currentMillis;
-      sensorValue = analogRead(analogInPin);
-      Serial.print("sensor = ");
-      Serial.print(sensorValue);
-      Serial.println("");
+
+      Serial.print("BusVoltage:   ");
+      Serial.print(ina219.getBusVoltage_V(), 2);
+      Serial.println("V");
 
       mqttClient.beginMessage("houseVoltage");
-      mqttClient.print(sensorValue);
+      //mqttClient.print(sensorValue);
+      mqttClient.print((ina219.getBusVoltage_V()/.493), 2);
       mqttClient.endMessage();
     }