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

Projects Networking, Protocols, and Devices
5

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

What have you tried? strtok() only takes two arguments - the string to parse and an array of delimiters. You only have two delimiters - the colon and the NULL, and the NULL is implied.

char *token1 = strtok(buf, ":");
if(token1)
{
   char *token2 = strtok(NULL, ":");
   if(token2)
   {
      char *token3 = strtok(NULL, ":");
      if(token3)
      {
          // Got all the tokens...
      }
   }
}