mirror of https://github.com/joan2937/pigpio
48 lines
599 B
C
48 lines
599 B
C
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#include <stdio.h>
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#include <pigpio.h>
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#include "rotary_encoder.h"
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/*
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REQUIRES
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A rotary encoder contacts A and B connected to separate gpios and
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the common contact connected to Pi ground.
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TO BUILD
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gcc -o rot_enc_c test_rotary_encoder.c rotary_encoder.c -lpigpio -lrt
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TO RUN
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sudo ./rot_enc_c
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*/
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void callback(int way)
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{
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static int pos = 0;
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pos += way;
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printf("pos=%d\n", pos);
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}
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int main(int argc, char *argv[])
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{
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Pi_Renc_t * renc;
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if (gpioInitialise() < 0) return 1;
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renc = Pi_Renc(7, 8, callback);
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sleep(300);
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Pi_Renc_cancel(renc);
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gpioTerminate();
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}
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