char* Sensor_Name[] = {"Hell", "Outside 1", "Outside 2", "Cellar", "Hallway",
 "Attic", "Pump Out", "Pump In"};
---
Serial.print(Sensor_Name[Real_Sensor]);

Sensor : 6 (Pump Out) Temp : 47 C
41 seconds since last update. This took 1.00 milliseconds to execute.

1
1
1
1
0
1
1

Total run time 75 seconds.

1
1
1
1
1
1
1

Total run time 77 seconds

1
1
1
1
1
1
1

Total run time 814 seconds.

1
1
1
1
1
1
1

Total run time 317 seconds.

sprintf(Send_Temp, "%d-%d", sender_id, send_data);

sprintf(Send_Temp, "%d%d", sender_id, send_data);

#include <VirtualWire.h>
#define RX_PIN 4

long lasttime = 0;

void setup()
{
Serial.begin(9600);
  
  vw_set_rx_pin(RX_PIN);
  vw_set_ptt_inverted(true);
  vw_setup(2000);
  vw_rx_start();
}

void loop()
{
unsigned long currenttime = millis();
  
uint8_t buf[VW_MAX_MESSAGE_LEN];
uint8_t buflen = VW_MAX_MESSAGE_LEN;
    
if (vw_get_message(buf, &buflen))
{
      char Sensor1CharMsg[5] = "", Value[5] = "", Sensor[5] = "", Temp[5] = "";
      int Real_Temp = 0, Real_Sensor = 0, i = 0, Sensor1Data = 0;
      long totaltime = (currenttime - lasttime) / 1000;
      
      lasttime = millis();

        for (i = 0; i < buflen; i++) Sensor1CharMsg[i] = char(buf[i]);

        Sensor1CharMsg[buflen] = '\0';
        Sensor1Data = atoi(Sensor1CharMsg); // Gör ett heltal av all mottaget data.
        itoa(Sensor1Data,Value,10); // Gör en sträng av mottaget data.
        
        sprintf(Sensor, "%c\0", Value[0]); // Filtrera ut vilken givare som skickat data.
        sprintf(Temp, "%c%c\0", Value[1], Value[2]); // Filtrera ut tempen.
        
        Real_Temp = atoi(Temp); // Gör om Tempen till ett heltal.
        Real_Sensor = atoi(Sensor); // Gör om givare till ett heltal.
        
        Serial.print("Sensor : ";
        Serial.println(Real_Sensor);
        Serial.print("Temp : ";
        Serial.print(Real_Temp);
        Serial.println(" C";
        Serial.print(totaltime);
        Serial.println(" seconds since last update.";
        Serial.println("";
}
}