File content as of revision 0:fc1ff02f51e1:

#include "mbed.h"
#include <string>

PwmOut RED(LED1);
PwmOut BLUE(LED2);
PwmOut GREEN(LED3);
DigitalOut RGB(LED4);

//Serial pc(p28, p27);
Serial pc(USBTX, USBRX);

void receive();
char temp[100];

int main() {
    
    RED = 1;
    GREEN = 1;
    BLUE = 1;
    RGB = 0;
    
    pc.baud(115200);
    
    pc.printf("\r\nWelcome to danBed communication v1.0!");
    pc.printf("\r\nWrite 'Labas' to continue...\r\n");
    
    GET:
    receive();
    string labas = "Labas";
    
    if (temp == labas) pc.printf("\r\nLabas!!!\r\n");
    else{ 
        pc.printf("\r\nTry again! Type 'Labas'...\r\n");
        goto GET;
    }
    
    delete &labas;
    
    while(1) {
        
        receive();
        char buffer[20];
        float value;
        
        //sscanf(temp,"%s %f", buffer, &value); 
        for(int j = 0; j < 10; j++) pc.printf("\r\n%i", buffer[j]);
        
        if(buffer == "RGB"){
            RGB = value;
            if(value == 1) pc.printf("\r\nRGB turned ON\r\n");
            else pc.printf("\r\nRGB turned OFF\r\n");
        }
        else if(buffer == "RED"){
            RED = value;
            pc.printf("\r\nRED value %0.2f\r\n", value);
        }
        else if(buffer == "GREEN"){
            GREEN = value;
            pc.printf("\r\nGREEN value %0.2f\r\n", value);
        }
        else if(buffer == "BLUE"){
            BLUE = value;
            pc.printf("\r\nBLUE value %0.2f\r\n", value);
        }
        else pc.printf("\r\nCommand not recognised!\r\n");
        //else if(receiver == "RED"){
            //pc.gets(
    }
}

void receive(){
    memset(temp, 255, sizeof(temp));
    char c;
    
    int i = 0;
    
    while(true){
        if(pc.readable()){
            c = pc.getc();
            if (c == 13){
                temp[i] = 0; 
                break;
            }
            else temp[i] = c;
            pc.putc(c);
            i++;
        }
    }
}