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Added a sensor example in C using polling

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This commit is contained in:
Micke Prag 2011-05-18 11:12:10 +00:00
parent 692fa85290
commit 1b98044f3d
2 changed files with 51 additions and 0 deletions
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13
examples/c/sensors/polling/Makefile Normal file
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CC=gcc
CFLAGS=-Wall -ltelldus-core
OBJS = main.o
all: ${OBJS}
${CC} -o sensor ${CFLAGS} ${OBJS}
main.c:
${CC} ${CFLAGS} -c main.c
clean:
rm -f sensor main.o

38
examples/c/sensors/polling/main.c Normal file
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#include <telldus-core.h>
#include <time.h>
#include <stdio.h>
const int DATA_LENGTH = 20;
int main(void) {
char protocol[DATA_LENGTH], model[DATA_LENGTH];
int sensorId = 0, dataTypes = 0;
char value[DATA_LENGTH];
char timeBuf[80];
time_t timestamp = 0;
tdInit();
while(tdSensor(protocol, DATA_LENGTH, model, DATA_LENGTH, &sensorId, &dataTypes) == TELLSTICK_SUCCESS) {
//Print the sensor
printf("%s,\t%s,\t%i\n", protocol, model, sensorId);
//Retrieve the values the sensor supports
if (dataTypes & TELLSTICK_TEMPERATURE) {
tdSensorValue(protocol, model, sensorId, TELLSTICK_TEMPERATURE, value, DATA_LENGTH, (int *)&timestamp);
strftime(timeBuf, sizeof(timeBuf), "%Y-%m-%d %H:%M:%S", localtime(&timestamp));
printf("Temperature:\t%sº\t(%s)\n", value, timeBuf);
}
if (dataTypes & TELLSTICK_HUMIDITY) {
tdSensorValue(protocol, model, sensorId, TELLSTICK_HUMIDITY, value, DATA_LENGTH, (int *)&timestamp);
strftime(timeBuf, sizeof(timeBuf), "%Y-%m-%d %H:%M:%S", localtime(&timestamp));
printf("Humidity:\t%s%%\t(%s)\n", value, timeBuf);
}
printf("\n");
}
tdClose();
return 0;
}