exercise_remotecontrol/rime/led_remote_control.c

   1 #include <contiki.h>
   2 #include <stdio.h>
   3 #include <dev/leds.h>
   4 #include <dev/button-sensor.h>
   5 #include <net/rime.h>
   6
   7 PROCESS(led_remote_control_rime, "binary LED counter via button over Rime");
   8 AUTOSTART_PROCESSES(&led_remote_control_rime);
   9
  10 void recv(struct broadcast_conn *ptr, const rimeaddr_t * sender) {
  11   char * val = (char *) packetbuf_dataptr();
  12   printf("node %d: recv from %d: %d\n", rimeaddr_node_addr, *sender, *val);
  13   // FIXME
  14   if(*val % 2) {
  15     leds_toggle(LEDS_GREEN);
  16   }
  17   leds_toggle(LEDS_YELLOW);
  18   printf("toggled LEDs\n");
  19 }
  20
  21 static struct broadcast_conn bc;
  22 static const struct broadcast_callbacks bccb = { recv };
  23
  24 PROCESS_THREAD(led_remote_control_rime, ev, data) {
  25   PROCESS_EXITHANDLER(broadcast_close(&bc));
  26
  27   PROCESS_BEGIN();
  28
  29   leds_init();
  30   leds_off(LEDS_ALL);
  31
  32   SENSORS_ACTIVATE(button_sensor);
  33
  34   broadcast_open(&bc, 129, &bccb);
  35
  36   static struct etimer timer;
  37   static char i;
  38   for(i = 0; 1; i++) {
  39     PROCESS_WAIT_EVENT_UNTIL(ev == sensors_event && data == &button_sensor);
  40
  41     // debounce for 250 ms
  42     etimer_set(&timer, CLOCK_SECOND * 0.25);
  43     PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&timer));
  44
  45     packetbuf_copyfrom(&i, sizeof(i));
  46     broadcast_send(&bc);
  47     printf("node %d: broadcast sent: %d\n", rimeaddr_node_addr, i);
  48   }
  49
  50   PROCESS_END();
  51 }