Arduino 2 Nodemcu Passthrough

gistfile1.cpp

#include <dht.h>
#define DHT11_PIN 4
dht DHT;
HardwareSerial trm = Serial2;
HardwareSerial esp = Serial1;
HardwareSerial dbg = Serial;

const int moistureAO = 7;
float moisture = 0.0;
float temperature = 0.0;
float humidity = 0.0;

boolean flash = false;

void setup() {
  dbg.begin(9600);
  esp.begin(9600);
  trm.begin(9600);
  
  pinMode(moistureAO, INPUT);
  
  delay(2000);
  dbg.println("Restarting esp8266");
  execLuaCommand("node.restart()");
  while (!esp.find("IP:")) {
    dbg.println("Waiting for nodemcu IP");
    delay(1000);
  }
  
  dbg.println("Aquired IP address");    
  dbg.println("Executing main program");
  execLuaCommand("run()");
  dbg.println("Executed. Entering loop.");
}

void loop() {

  if (flash) {
    if (trm.available()) {
      char inByte = trm.read();
      esp.print(inByte); 
    }
   
    if (esp.available()) {
      char inByte = esp.read();
      trm.print(inByte); 
    }
  
  } else {    
    if (esp.available()) {
      if (esp.find("GET DATA")) {
          dbg.println("GET DATA");
          getDHT();
          getMoisture();
          postData();
      }
    }
    
    delay(1000);
  }
}

void getDHT() {
  int chk = DHT.read11(DHT11_PIN);
    switch (chk)
    {
      case DHTLIB_OK:  
  		temperature = DHT.temperature;
                humidity = DHT.humidity;
  		break;
      case DHTLIB_ERROR_CHECKSUM: 
  		dbg.println("error('Checksum error')"); 
  		break;
      case DHTLIB_ERROR_TIMEOUT: 
  		dbg.println("error('Time out error'"); 
  		break;
      default: 
  		dbg.println("error('Unknown error')"); 
  		break;
    }
}

void getMoisture () {
  int tmp=analogRead( moistureAO );
  if ( tmp != moisture ) 
  {
    moisture=tmp;    
  }
}

void postData() {
  esp.print("{\"");
      esp.print("t");
      esp.print("\":");
      esp.print(temperature,1);
    esp.print(",");
      esp.print("\"");
      esp.print("h");
      esp.print("\":");
      esp.print(humidity,1);
    esp.print(",");
      esp.print("\"");
      esp.print("m");
      esp.print("\":");
      esp.print(moisture,1);
  esp.print("}");
  esp.print("\n");
  
  
  dbg.print("{\"");
      dbg.print("t");
      dbg.print("\":");
      dbg.print(temperature,1);
    dbg.print(",");
      dbg.print("\"");
      dbg.print("h");
      dbg.print("\":");
      dbg.print(humidity,1);
    dbg.print(",");
      dbg.print("\"");
      dbg.print("m");
      dbg.print("\":");
      dbg.print(moisture,1);
  dbg.print("}");
  dbg.print("\n");
}

void execLuaCommand(char* command) {
  delay(1000);
  Serial1.println("");
  Serial1.println(command);
  delay(1000);
}

boolean find(char* command) {
  return Serial1.find(command);
}