 void          buttonPressInterrupt();
 void          drawAutoScanScreen(void);
 void          drawBattery(unsigned char xPos, unsigned char yPos, unsigned char value, bool showNumbers = false );
-void          drawChannelScreen( unsigned char channel);
 void          drawLeftInfoLine( void );
 void          drawLogo( unsigned char xPos, unsigned char yPos);
 void          drawOptionsScreen(unsigned char option, unsigned char in_edit_state );

    }
  }
  // Fine tuning
  scanFrequency = bestFrequency - 20;
  bestRssi = 0;
  for (i = 0; i < 20; i++, scanFrequency += 2) {
    receiver.setFrequency(scanFrequency);
    delay( RSSI_STABILITY_DELAY_MS );
    scanRssi = averageAnalogRead(RSSI_PIN);

rtc6715 receiver( SPI_CLOCK_PIN, SLAVE_SELECT_PIN, SPI_DATA_PIN );
unsigned char softPositions[48];

//******************************************************************************
//* function: setup
//******************************************************************************
