text: // vim: ft=c sts=2 sw=2 et si ai:
  //
  
  #include <avr/io.h>
  /* A macro to read UART value and convert it to ASCII*/
  #define read_and_convert() (PINB + 0x48)
  /* Write to UART*/
  int main(void) { UDR0 = read_and_convert(); }
  