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37 lines
633 B
C
37 lines
633 B
C
#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include "ezortd.h"
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int main()
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{
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int fd;
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fd = open("/dev/i2c-1", O_RDWR);
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if(fd < 0)
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{
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fprintf(stderr,
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"ERROR: Unable to access EZO RTD: %s\n",
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strerror(errno));
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return -1;
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}
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double temperature = 0;
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if(getTemperature(fd, &temperature) < 0)
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{
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fprintf(stderr,
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"ERROR: Failed to read temperature\n");
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return -1;
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}
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printf("{ ");
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printf("\"temperature\": %.3f ", temperature);
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printf("}");
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return 0;
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} |