Flysky and Relay

#include "Arduino.h"

//Test with Channel 1 
//Test with switch SWB 
//we declare the inputs to them we connect our RC from 1 channel and SWB 
int ch1=3;
int ch6=5;


//we declare outputs we connect LEDs to them
int sd1 = 7;
int sd6 = 8;

//variables for recording the signal
int sig1;
int sig6;


//variables for PWM control
int forward;
int plow;

void setup()
{
 
 //assign pins as inputs
    pinMode(ch1, INPUT);
    pinMode(ch6, INPUT);
   
//assign pins as outputs
    pinMode(sd1,OUTPUT);// Cha1 Left :1005 Right 1981
    pinMode(sd6,OUTPUT);// OFF 1981 ON 994
    
  
   //just in case, set the speed to the Serial port so that you can see what is happening in the program
  Serial.begin(9600);
}

void loop()
{
 
 //we record the readings of the receiver
  sig1 = pulseIn(ch1, HIGH);
   sig6 = pulseIn(ch6, HIGH);

   if(sig1>1900)
   {
    digitalWrite(forward,HIGH);
   }
   
   //if(sig1<1000)
   //{
   // digitalWrite(forward,LOW);
   //}
   // These are the code for the if statement for the plow.
   if(sig6>1900)
   {
    digitalWrite(plow,HIGH);
   }
   
   // if(sig6<1000)
   //{
    //digitalWrite(plow,LOW);
  // }
     
   
//et the PWM ports to the value received from the receiver
     digitalWrite(sd1,forward);
     digitalWrite(sd6,plow);
     
    
     //outputting data to the port monitor
        
        //but it is not necessary, I used it when writing
          
           //programs
  Serial.println();
  
    
    Serial.print("Input ch1");
    Serial.print(": ");
   Serial.print(sig1);
    Serial.print("    ");

 Serial.print("Input ch6");
    Serial.print(": ");
   Serial.print(sig6);
    Serial.print("    ");

Serial.print("1");
    Serial.print(": ");
   Serial.print(forward);
    Serial.print("    ");
    
    Serial.print("2");
    Serial.print(": ");
   Serial.print(plow);
    Serial.print("    ");

    
    
    delay(200);
}