IoT-Labs/S4/client2.c

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2020-10-05 10:55:51 +01:00
#include "contiki.h"
#include "net/rime.h"
#include "dev/light-sensor.h"
#include <stdio.h>
#include <string.h>
/*---------------------------------------------------------------------------*/
PROCESS(example_unicast_process, "Example unicast");
AUTOSTART_PROCESSES(&example_unicast_process);
/*---------------------------------------------------------------------------*/
static void
recv_uc(struct unicast_conn *c, const rimeaddr_t *from)
{
// Print the received message
char *dataReceived = (char *)packetbuf_dataptr();
dataReceived[packetbuf_datalen()] = 0;
printf("A unicast received from %d.%d\n",from->u8[0],from->u8[1]);
printf("The message is: '%s'\n",dataReceived);
}
static const struct unicast_callbacks unicast_callbacks = {recv_uc};
static struct unicast_conn uc;
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(example_unicast_process, ev, data)
{
PROCESS_EXITHANDLER(unicast_close(&uc);)
PROCESS_BEGIN();
printf("I'm a client mote, my rime addr is: %d.%d\n",
rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1]);
unicast_open(&uc, 146, &unicast_callbacks);
SENSORS_ACTIVATE(light_sensor);
while(1)
{
static struct etimer et;
rimeaddr_t addr;
etimer_set(&et, CLOCK_SECOND*5/3);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
int lightData = light_sensor.value(LIGHT_SENSOR_PHOTOSYNTHETIC);
char message[100];
sprintf(message,"From %d.%d; Light (raw reading) = %d",
rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1], lightData);
packetbuf_copyfrom(message, strlen(message));
addr.u8[0] = 1; // this is the server rime address (part 1)
addr.u8[1] = 0; // this is the server rime address (part 2)
if(!rimeaddr_cmp(&addr, &rimeaddr_node_addr))
{
unicast_send(&uc, &addr);
printf("My light reading is sent to %d.%d.\n", addr.u8[0],addr.u8[1]);
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/