/* 1byte HC12 Receiver example.
/* Tutorial link: http://electronoobs.com/eng_arduino_tut96.php
 * Code: http://electronoobs.com/eng_arduino_tut96_code1.php
 * Scheamtic: http://electronoobs.com/eng_arduino_tut96_sch1.php
 * Youtube Channel: http://www.youtube/c/electronoobs   
 * 
  Module // Arduino UNO/NANO    
    GND    ->   GND
    Vcc    ->   3.3V
    Tx     ->   D10
    Rx  code      
 */
#include <SoftwareSerial.h>
SoftwareSerial HC12(6, 7); // HC-12 TX Pin, HC-12 RX Pin
byte LED = 13;

void setup() {
 // Serial.begin(9600);    // Serial port to computer
  HC12.begin(9600);      // start Serial port to HC12
  pinMode(LED,OUTPUT);
}
void loop() {
  while (HC12.available()) {        // If HC-12 has data
    byte got = HC12.read();
  //  Serial.println(HC12.read());   //data to Serial monitor
    if (got==7) { //received number 7
      digitalWrite(LED,HIGH);
      delay(5); //confirm led
      digitalWrite(LED,LOW);
      delay(100);
      digitalWrite(LED,HIGH);
      delay(5); //confirm led
      digitalWrite(LED,LOW);
    }
  }  
}