code.txt

#include <VirtualWire.h>
 
const int transmit_pin = 12;
const int MHESP = 7; 
 
char msg[7] = {'h'};
char msg1[7] = {'j'};
 
 
 
int sensor1 = A0; 
int sensor2 = A1; 
 
int sensor3 = A2; 
int sensor4 = A3; 
 

int sdata1 = 0;
int sdata2 = 0; 
int sdata3 = 0;
int sdata4 = 0; 
 
 
 
 
void setup()
{
  Serial.begin(9600);
    vw_set_tx_pin(transmit_pin);
 
    pinMode(sensor1, INPUT);

    pinMode(MHESP,OUTPUT); 
    digitalWrite(MHESP, HIGH); 
    vw_setup(2000);      
    
}
 
byte count = 1;
 
void loop()
{
 
  sdata1 = analogRead(sensor1);
  delay(20); 
   
  Serial.println(sdata1);
  
  
 
 if(sdata1 < 500 )
 {
  
  vw_send((uint8_t *)msg, 1); 
  vw_wait_tx(); 
  Serial.println("Protection activated");
  delay(100);
 
 }
 
  if( sdata1 > 500 )
 {
  
  vw_send((uint8_t *)msg1, 1); 
  vw_wait_tx();
  Serial.println("Normal");
  delay(100);
 
 } 
    
   else 
delay(100);
 
}



// receiver.pde
 
#include <VirtualWire.h>
 
 
int indicator = 9; // it can also be a buzzer
int Power = 10; // to control power to the machine/device
 
 
const int receive_pin = 11;
 
 
void setup()
{
    delay(1000);
    Serial.begin(9600); // Debugging only
    Serial.println("setup");
 
 
    vw_set_rx_pin(receive_pin);
    vw_set_ptt_inverted(true); // Required for DR3100
    vw_setup(2000);  // Bits per sec
    vw_rx_start();       // Start the receiver PLL running
 
  
    pinMode(indicator, OUTPUT);
    pinMode(Power, OUTPUT);
    digitalWrite(indicator, LOW); 
    digitalWrite(indicator, LOW); 
    
}
 
void loop()
{
    uint8_t buf[VW_MAX_MESSAGE_LEN];
    uint8_t buflen = VW_MAX_MESSAGE_LEN;
 
    if (vw_get_message(buf, &buflen)) // Non-blocking
    {
    int i;
 
     
    // Message with a good checksum received, dump it.
    Serial.print("Got: ");
    
    for (i = 0; i < buflen; i++)
    {
        char c = (buf[i]);
 
        if( c == 'j') // for right side
    {
       digitalWrite(Power, HIGH); 
      digitalWrite(indicator, LOW); 
      Serial.print(c);
        Serial.print(' ');
           
    }
 
 if( c == 'h') // 
    {
      
      digitalWrite(Power, LOW); 
      digitalWrite(indicator, HIGH); 
      Serial.print(c);
        Serial.print(' ');
           
    }  
   
    if( c == 'm')
    {
 
            Serial.print(c);
        Serial.print(' ');
           
    } 
 
    }
 
    }
}