control 3 led (PWM) w/ 3 potentio on rf link 433mhz

Projects Networking, Protocols, and Devices
4

my RX code:

#include <VirtualWire.h>

int led1 = 3;
int led2 = 5;
int led3 = 6;

void setup()
{
pinMode(led1, OUTPUT);      
pinMode(led2, OUTPUT);  
pinMode(led3, OUTPUT); 
Serial.begin(9600);
vw_setup(2000); 
vw_rx_start(); 
}
void loop()
{
uint8_t buf[VW_MAX_MESSAGE_LEN];
uint8_t buflen = VW_MAX_MESSAGE_LEN;
if (vw_get_message((byte *)buf, &buflen)) 
{
int i;


for (i = 0; i < buflen; i++)
{
Serial.print(buf[i], char());
}
Serial.println("");
}
}

and the serial output are:

069:148:117
069:148:117
069:148:117
069:148:117
069:148:117
069:148:117
069:148:117

any sample code to extract these code with strtok() ?
thanks