remote control exercise: binary LED counter via button over Rime network

diff --git a/exercise_remotecontrol/rime/Makefile b/exercise_remotecontrol/rime/Makefile
new file mode 100644 (file)
index 0000000..c568329
--- /dev/null
+++ b/exercise_remotecontrol/rime/Makefile
@@ -0,0 +1,7 @@
+include ../../Makefile.properties
+CONTIKI_PROJECT=led_remote_control_rime
+
+all: $(CONTIKI_PROJECT)
+
+include $(CONTIKI)/Makefile.include
+

diff --git a/exercise_remotecontrol/rime/led_remote_control_rime.c b/exercise_remotecontrol/rime/led_remote_control_rime.c
new file mode 100644 (file)
index 0000000..b3b9899
--- /dev/null
+++ b/exercise_remotecontrol/rime/led_remote_control_rime.c
@@ -0,0 +1,51 @@
+#include <contiki.h>
+#include <leds.h>
+#include <stdio.h>
+#include <button-sensor.h>
+#include <net/rime.h>
+
+PROCESS(led_remote_control_rime, "binary LED counter via button over Rime");
+AUTOSTART_PROCESSES(&led_remote_control_rime);
+
+void recv(struct broadcast_conn *ptr, const rimeaddr_t * sender) {
+  char * val = (char *) packetbuf_dataptr();
+  printf("node %d: recv from %d: %d\n", rimeaddr_node_addr, *sender, *val);
+  // FIXME
+  if(*val % 2) {
+    leds_toggle(LEDS_GREEN);
+  }
+  leds_toggle(LEDS_YELLOW);
+  printf("toggled LEDs\n");
+}
+
+static struct broadcast_conn bc;
+static const struct broadcast_callbacks bccb = { recv };
+
+PROCESS_THREAD(led_remote_control_rime, ev, data) {
+  PROCESS_EXITHANDLER(broadcast_close(&bc));
+
+  PROCESS_BEGIN();
+
+  leds_init();
+  leds_off(LEDS_ALL);
+
+  SENSORS_ACTIVATE(button_sensor);
+
+  broadcast_open(&bc, 129, &bccb);
+
+  static struct etimer timer;
+  static char i;
+  for(i = 0; 1; i++) {
+    PROCESS_WAIT_EVENT_UNTIL(ev == sensors_event && data == &button_sensor);
+
+    // debounce for 250 ms
+    etimer_set(&timer, CLOCK_SECOND * 0.25);
+    PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&timer));
+
+    packetbuf_copyfrom(&i, sizeof(i));
+    broadcast_send(&bc);
+    printf("node %d: broadcast sent: %d\n", rimeaddr_node_addr, i);
+  }
+
+  PROCESS_END();
+}