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Copy pathCHANGE OVER V2
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CHANGE OVER V2
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#include <SoftwareSerial.h>
#include "EmonLib.h" // Include Emon Library
EnergyMonitor emon1; // Create an instance
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "ArduinoJson.h"
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
#define TINY_GSM_MODEM_SIM800
#include <TinyGsmClient.h>
#include <PubSubClient.h>
void autoMode();
void refreshDisplay();
void output(byte Outsignal);
void batLow();
float batlvl();
void TurnOnffGen();
void TurnOnGen();
void GenFaultCheck();
void InvFaultCheck();
void NepaFaultCheck();
void overloadcheck();
void lastStateCheck();
void fault();
void manualMode();
void sendEsp();
boolean mqttConnect();
void mqttCallback();
float genv;
bool internetMode;
bool chm;
byte nepaInput = A0;
byte inverterInput = A1;
byte genInput = A7;
byte counter0;
byte counter1;
byte counter2;
int eepromvalue;
byte toggler = 8;
int mqttSetMode;
//byte modeBtn = 2;
int bttn = 0;
byte buzzerState;
byte setOperatingMode;
byte SetMode;
float bat;
boolean oledState;
int AcVoltOut0;
int AcVoltOut1;
int AcVoltOut2;
double Irms;
float batpercent;
float genpercent;
byte operatingMode;
int wattage0;
int wattage1;
int wattage2;
byte wattagecounter;
byte phonemode;
byte phoneout;
byte phoneshtdown;
//buzzer== A3
//auto/ manual pin
//byte modePin = 2;
//Check inputs
byte Genout;
byte Invout;
byte Mainout;
//relay mosfets
byte invMosfet = 4;
byte nepaMosfet = 5;
byte genMosfet = 6;
//esp-01 pins
//SoftwareSerial esp(10, 11); // RX, TX
byte currPin = A6;
unsigned long startTime; //some global variables available anywhere in the program
unsigned long currentTime;
const unsigned long waitTime = 2000; //the value is a number of milliseconds
unsigned long initTime; //some global variables available anywhere in the program
unsigned long timeNow;
const unsigned long SetTime = 8000; //the value is a number of milliseconds
//mode 1=nepa mode 2=inverter mode 3= gen mode 4= off all
byte Mode = 1;
float input_voltage = 0.0;
float temp = 0.0;
float r1 = 10000.0;
float r2 = 965;
//eeprom
#include <EEPROM.h>
int addr = 0;
// volt conv
//String voltStr;
char volt[10];
int vvolt;
/// gsm
byte count = 0;
#define SerialAT Serial1 //Connect SIM_RX to 18, SIM_TX to 19 of MEGA
TinyGsm modem(SerialAT);
TinyGsmClient client(modem);
PubSubClient mqtt(client);
uint32_t lastReconnectAttempt = 0;
//Network details
const char apn[] = "inernet.ng.airtel.com";
const char user[] = "web";
const char pass[] = "web";
// MQTT details
const char *broker = "broker.hivemq.com";
const char *topicOut = "dan/out";
const char *topicIn = "dan/in";
const char *mqtt_user = "changeover";
const char *mqtt_pass = "changeover";
boolean mqttConnect()
{
// boolean status = ;
if (!mqtt.connect("GsmClientName"))
{
Serial.print(".");
return false;
}
Serial.println(F("Connected to broker."));
mqtt.subscribe(topicOut);
return mqtt.connected();
}
void mqttCallback(char *topic, byte *payload, unsigned int length)
{
char str[length + 1];
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
int i = 0;
for (i = 0; i < length; i++)
{
Serial.print((char)payload[i]);
str[i] = (char)payload[i];
}
str[i] = 0; // Null termination
Serial.println();
StaticJsonDocument<256> doc;
deserializeJson(doc, payload);
// deserializeJson(doc,str); can use string instead of payload
phonemode = doc["phmode"]; //send 1 for auto and 0 for manual mode
phoneout = doc["phout"]; // sends 1 for main,2 for inv, 3 for gen and 4 for off
// phoneshtdown = doc["pshtdwn"]; // send 0 to shutdown change over and 1 for on
//{"phmode":"value","phout":"value", "pshtdwn":"value", }
if (phonemode == 1)
{
operatingMode = 1;
}
else if (phonemode == 0)
{
operatingMode = 2;
Mode = phoneout;
}
}
void sendEsp(String message)
{ // write line to log
// Serial.print("sending ");
if (message == "genOff")
{
// Serial.println("0 ");
Serial2.println("00000");
}
if (message == "genOn")
{
// Serial.print("1 ");
Serial2.println("1");
}
}
void manualMode() //Funtion runs if the manual mode switch is pressed
{
if (digitalRead(toggler) == LOW && digitalRead(3) == HIGH && digitalRead(2) == HIGH)
{
Serial.print("in ");
startTime = millis(); //initial start time
while (digitalRead(toggler) == LOW && digitalRead(2) == HIGH && digitalRead(3) == HIGH)
{
currentTime = millis();
if (currentTime - startTime >= waitTime) //test whether the period has elapsed
{
display.clearDisplay();
switch (Mode)
{
case 1: //If the "main" menu is selected
display.clearDisplay();
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("INV.");
display.display();
Mode++;
break;
case 2: //If the "Inverter" menu is selected
display.clearDisplay();
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("GEN");
display.display();
Mode++;
break;
case 3: //If the "Gen" menu is selected
display.clearDisplay();
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("OFF");
display.display();
Mode++;
break;
case 4: //If the "off" menu is selected
display.clearDisplay();
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("MAINS");
display.display();
Mode++;
break;
}
if (Mode > 4)
{
Mode = 1;
}
startTime = millis();
}
}
}
switch (Mode)
{
case 1: //Switch to Nepa
sendEsp("genOff");
break;
case 2: //Switch to Inv
sendEsp("genOff");
break;
case 3: //Switch to Gen
sendEsp("genOn");
break;
case 4: //Switch off
sendEsp("genOff");
break;
}
}
void autoMode()
{
if (Mainout == 0 && Invout == 0 && Genout == 0)
{
sendEsp("genOn");
}
if (Mainout == 1 && Invout == 1 && Genout == 1)
{
if (counter0 == 0)
{
NepaFaultCheck();
Mode = 1;
sendEsp("genOff");
}
}
if (Mainout == 1 && Invout == 1 && Genout == 0)
{
NepaFaultCheck();
if (counter0 == 0)
{
Mode = 1;
}
}
if (Mainout == 1 && Invout == 0 && Genout == 0)
{
NepaFaultCheck();
if (counter0 == 0)
{
Mode = 1;
}
}
if (Mainout == 1 && Invout == 0 && Genout == 1)
{
NepaFaultCheck();
if (counter0 == 0)
{
Mode = 1;
sendEsp("genOff");
}
}
if (Mainout == 0 && Invout == 0 && Genout == 1)
{
GenFaultCheck();
if (counter2 == 0)
{
Mode = 3;
}
}
if (Mainout == 1 && Invout == 0 && Genout == 1)
{
NepaFaultCheck();
if (counter0 == 0)
{
Mode = 1;
sendEsp("genOff");
}
}
if (Mainout == 0 && Invout == 1 && Genout == 0)
{
InvFaultCheck();
if (counter1 == 0)
{
Mode = 2;
}
}
if (Mainout == 0 && Invout == 1 && Genout == 1)
{
InvFaultCheck();
if (counter1 == 0)
{
Mode = 2;
sendEsp("genOff");
}
}
}
void refreshDisplay()
{
if (oledState == false)
{
display.clearDisplay();
display.display();
}
else
{
display.clearDisplay();
// Serial.println(Mode);
AcVoltOut0 = (analogRead(A0) * (5.0 / 1023)) * 110.67; // Convert the AC divison into volt
Serial.println(AcVoltOut0);
if (AcVoltOut0 >= 50) //Check *if there is power on the "NEPA" input
{
if (Mode == 1) //check if the output is "NEPA" and highlight text
{
display.setTextColor(BLACK, WHITE); // 'inverted' text
display.setCursor(10, 0);
display.setTextSize(1);
display.println("MAIN");
display.setCursor(10, 8);
display.print(AcVoltOut0);
display.print("v");
display.setTextColor(WHITE, BLACK); // 'inverted' text
}
else
{
display.setCursor(10, 0);
display.setTextSize(1);
display.println("MAIN");
display.setCursor(10, 8);
display.print(AcVoltOut0);
display.print("v");
}
}
else
{
display.setCursor(10, 0);
display.setTextSize(1);
display.println("NEPA");
display.setCursor(10, 8);
display.print(" -- ");
display.print(" ");
} //.............................................................
AcVoltOut1 = (analogRead(A1) * (4.9 / 1023)) *106.67; // Convert the AC divison into volt
if (AcVoltOut1 >= 50) //Check if there is power on the "inverter" input
{
if (Mode == 2) //check if the output is "inverter" and highlight text
{
display.setTextColor(BLACK, WHITE); // 'inverted' text
display.setCursor(57, 0);
display.setTextSize(1);
display.println("INV");
display.setCursor(55, 8);
display.print(AcVoltOut1);
display.print("v");
display.setTextColor(WHITE, BLACK); // 'inverted' text
}
else
{
display.setCursor(57, 0);
display.setTextSize(1);
display.println("INV");
display.setCursor(55, 8);
display.print(AcVoltOut1);
display.print("v");
}
}
else
{
display.setCursor(57, 0);
display.setTextSize(1);
display.println("INV");
display.setCursor(55, 8);
display.print(" -- ");
display.print(" ");
}
//..............................................................
AcVoltOut2 = (analogRead(A7) * (4.9 / 1023)) * 790.67; // Convert the AC divison into volt
if (AcVoltOut2 >= 50) //Check *if there is power on the "Generator" input
{
if (Mode == 3) //check if the output is "Generator" and highlight text
{
display.setTextColor(BLACK, WHITE);
display.setCursor(97, 0);
display.setTextSize(1);
display.println("GEN");
display.setCursor(95, 8);
display.print(AcVoltOut2);
display.print("v");
display.setTextColor(WHITE, BLACK); // 'inverted' text
}
else
{
display.setCursor(97, 0);
display.setTextSize(1);
display.println("GEN");
display.setCursor(95, 8);
display.print(AcVoltOut2);
display.print("v");
}
}
else
{
display.setCursor(97, 0);
display.setTextSize(1);
display.println("GEN");
display.setCursor(95, 8);
display.print(" -- ");
display.print(" ");
}
////////////////////////////////////////////////////////////////////////////////
switch (Mode)
{
case 1:
if (counter0 == 1)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("MAIN");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("FAULT");
break;
}
else if (counter0 == 0)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print(wattage0);
display.print("W ");
break;
}
case 2:
if (counter1 == 1)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("INV");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("FAULT");
break;
}
else if (counter1 == 0)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print(wattage1);
display.print("W ");
break;
}
case 3:
if (counter2 == 1)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("GEN");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print("FAULT");
break;
}
else if (counter2 == 0)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OUT");
display.print(":");
display.setCursor(50, 25);
display.setTextSize(2);
display.print(wattage2);
display.print("W ");
break;
}
case 4:
if (wattagecounter == 1)
{
display.setCursor(5, 25);
display.setTextSize(2);
display.print("OVERLOAD!!");
display.print(":");
break;
}
case 5:
display.setCursor(50, 25);
display.setTextSize(2);
display.print("OFF");
break;
////////////////////////////////////////////////////////////////////////////////
}
display.setTextSize(1);
display.setCursor(5, 45);
display.println("MODE");
display.setCursor(45, 45);
display.println("BAT:");
display.setCursor(45, 55);
display.println("GEN:");
if (operatingMode == 2) //manual mode
{
display.setTextSize(1);
display.setCursor(0, 55);
display.println("MANUAL");
}
else if (operatingMode == 1) //auto mode
{
display.setTextSize(1);
display.setCursor(0, 55);
display.println("AUTO.");
}
batpercent = batlvl();
// Serial.println(batpercent);
batpercent = (batpercent - 9.0) / (12.0 - 9.0) * 100;
if (batpercent < 0)
{
batpercent = 0;
}
if (batpercent > 100)
{
batpercent = 100;
}
display.setTextSize(1);
display.setCursor(70, 45);
display.print(batpercent, 0);
display.print("%");
genpercent = genv;
genpercent = (genpercent - 2.8) / (3.28 - 2.8) * 100;
if (genpercent < 0)
{
genpercent = 0;
}
if (genpercent > 100)
{
genpercent = 100;
}
display.setCursor(70, 55);
display.print(genpercent, 0);
display.print("%");
}
/////////////////////////////////////////////////////////////////////////////
if (modem.isNetworkConnected())
{
display.setCursor(95, 55);
display.print(modem.getSignalQuality());
display.print("db");
}
if (internetMode == 1)
{
if (!mqtt.connected() && modem.isGprsConnected())
{
display.setTextColor(BLACK, WHITE);
display.setCursor(100, 45);
display.print(" G ");
display.setTextColor(WHITE, BLACK);
}
if (mqtt.connected() && modem.isGprsConnected())
{
display.setTextColor(BLACK, WHITE);
display.setCursor(100, 45);
display.print(" G+ ");
display.setTextColor(WHITE, BLACK);
}
}
else
{
display.setCursor(100, 45);
display.print(" NC");
}
display.display();
}
////////////////////////////////////////////////////////////////////////
void fault()
{
timeNow = millis(); //get the current "time" (actually the number of milliseconds since the program started)
if (timeNow - initTime >= SetTime) //test whether the period has elapsed
{
if (buzzerState == 0)
{
digitalWrite(A3, HIGH);
buzzerState = 1;
}
else
{
digitalWrite(A3, LOW);
buzzerState = 0;
}
initTime = timeNow; //IMPORTANT to save the start time of the current LED state.
}
if (wattage0 < 16001 || wattage1 < 16001 || wattage2 < 16001)
{
wattagecounter = 0;
}
if (AcVoltOut0 <= 255 || AcVoltOut0 > 130 && AcVoltOut0 > 30)
{
counter0 = 0;
}
if (AcVoltOut1 <= 255 || AcVoltOut1 > 130 && AcVoltOut1 > 30)
{
counter1 = 0;
}
if (AcVoltOut2 <= 255 || AcVoltOut2 > 130 && AcVoltOut2 > 30)
{
counter2 = 0;
}
}
void lastStateCheck()
{
//Read eeprom
Mode = EEPROM.read(0);
operatingMode = EEPROM.read(2);
}
void overloadcheck()
{
if (wattage0 >= 16001 || wattage1 >= 16001 || wattage2 >= 16001)
{
output(4);
wattagecounter = 1;
fault();
}
}
void NepaFaultCheck()
{
if (AcVoltOut0 > 255 || AcVoltOut0 < 130 && AcVoltOut0 > 30)
{
Serial.println(("faulty mains"));
counter0 = 1;
digitalWrite(nepaMosfet, LOW);
fault();
}
}
void InvFaultCheck()
{
if (AcVoltOut1 > 255 || AcVoltOut1 < 130 && AcVoltOut1 > 30)
{
Serial.println(("faulty mains"));
counter1 = 1;
digitalWrite(invMosfet, LOW);
fault();
}
}
void GenFaultCheck()
{
if (AcVoltOut2 > 255 || AcVoltOut2 < 130 && AcVoltOut2 > 30)
{
Serial.println(("faulty mains"));
counter2 = 1;
digitalWrite(genMosfet, LOW);
fault();
}
}
void TurnOnGen()
{
sendEsp("genOn");
}
void TurnOnffGen()
{
sendEsp("genOff");
}
float batlvl()
{
// temp = ( average * 5.4567) / 1023.0;
temp = (analogRead(A2) * 4.8) / 1023.0;
input_voltage = temp / (r2 / (r1 + r2));
// Serial.println(input_voltage);
return input_voltage;
}
void batLow()
{
bat = batlvl();
// Serial.print ln(bat);
if (bat < 11.5)
{
////////////////////////////
if (operatingMode > 10) //for first time use (Empty Eeprom)
{
operatingMode = 2; //Set operating mode==2
}
// Serial.println(bat);
// operatingMode
if (operatingMode != setOperatingMode) //check if mode(auto or manual) has changed
{
Serial.println("save");
EEPROM.write(2, operatingMode);
setOperatingMode = operatingMode; //make the var set operating mode equal to the current mode
}
/////////////////////////
if (Mode != SetMode) // Check if out (mains,inv or gen) has changed
{
EEPROM.write(0, Mode);
SetMode = Mode; //make the var set operating mode equal to the current mode
}
}
}
void output(byte Outsignal)
{
if (Outsignal == 4)
{
digitalWrite(invMosfet, LOW);
digitalWrite(genMosfet, LOW);
digitalWrite(nepaMosfet, LOW);
delay(200);
}
else if (Outsignal == 1)
{
digitalWrite(invMosfet, LOW);
digitalWrite(genMosfet, LOW);
delay(200);
digitalWrite(nepaMosfet, HIGH);
}
else if (Outsignal == 2)
{
digitalWrite(genMosfet, LOW);
digitalWrite(nepaMosfet, LOW);
delay(200);
digitalWrite(invMosfet, HIGH);
}
else if (Outsignal == 3)
{
digitalWrite(invMosfet, LOW);
digitalWrite(nepaMosfet, LOW);
delay(200);
digitalWrite(genMosfet, HIGH);
}
}
//Setup function Start
void setup()
{
pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(2), PRESS, FALLING);
attachInterrupt(digitalPinToInterrupt(3), PRESSES, FALLING);
pinMode(nepaInput, INPUT);
pinMode(inverterInput, INPUT);
pinMode(genInput, INPUT);
//pinMode(modeBtn, INPUT_PULLUP);
pinMode(toggler, INPUT_PULLUP);
pinMode(invMosfet, OUTPUT);
pinMode(nepaMosfet, OUTPUT);
pinMode(genMosfet, OUTPUT);
//disable all relays
digitalWrite(invMosfet, LOW);
digitalWrite(nepaMosfet, LOW);
digitalWrite(genMosfet, LOW);
Serial.begin(115200);
Serial2.begin(9600);
SerialAT.begin(9600);
//analogReference(INTERNAL);
//////////////////////////Initialize Oled screen
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
{ // Address 0x3D for 128x64
Serial.println(F("SSD1306 allocation failed"));
for (;;)
; // Don't proceed, loop forever
}
display.setTextColor(SSD1306_WHITE);
display.display();
oledState = true;
/////////////////////////////////////////
modem.restart();
Serial.println(("Signal Quality: " + String(modem.getSignalQuality())));
mqtt.setServer(broker, 1883);
mqtt.setCallback(mqttCallback);
emon1.current(6, 48.0);
lastStateCheck();
}
//Loop Function Start Here
void loop()
{
ch();
//sendEsp();
batLow();
refreshDisplay();
overloadcheck();
// opMode();
if (Serial2.available())
{
delay(10);
String message = "";
while (Serial2.available())
message += (char)Serial2.read();
//Serial.println(message);
if (message.indexOf("Bytes received=") >= 0)
{
int x = message.indexOf('=');
int y = message.indexOf(",");
String Read = message.substring(x + 1, y);
genv = Read.toFloat();
}
}
ch();
if (mqtt.connected() && internetMode == 1)
{
mqtt.loop();
StaticJsonDocument<256> doc;