// open the Serial port for the 1st example
Serial.begin(57600);

// open the Serial port for the 2nd example  

Serial.begin(115200);

Serial.println("? Help");  
Serial.println("+ increase volume");  
Serial.println("- decrease volume");  
Serial.println("> next preset");  
Serial.println("< previous preset");  
Serial.println(". scan up   : scan up to next sender");  
Serial.println(", scan down ; scan down to next sender");  
Serial.println("fnnnnn: direct frequency input");  
Serial.println("i station status");  
Serial.println("s mono/stereo mode");  
Serial.println("b bass boost");  
Serial.println("u mute/unmute");