 // Single radio pipe address for the 2 nodes to communicate.
 const uint64_t pipe = 0xE8E8F0F0E1LL;
 
-uint8_t state = 0;
+int state = 0;
 uint8_t state_size = sizeof(state);
 
 void setup(void)


void loop(void)
{  
  uint8_t address;
  char cmd[10];
  char c;
  

    } else {
      input.toCharArray(cmd,10);
      byte okparse = sscanf(cmd, "%d %d", &address, state);
      printf("%d", state);

      if (okparse == 2 ) {
        radio.openWritingPipe(pipe+(uint64_t)address);
