#include <Rainbowduino.h>

char a;

void setup(){
    Rb.init();
    Serial.begin(9600);
}

void loop(){
    while(Serial.available() > 0){
        a = Serial.read();
        Rb.blankDisplay();
        Rb.drawChar(a,0,1,random(0xFFFFFF)); 
		delay(500);
    }    
}