adc_gpio_i2c/voltage_app
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distance_app: Measure continuously until 'Ctrl+c' is pressed.

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This commit is contained in:
Thomas Klaehn 2019-07-29 10:20:02 +01:00
parent 78b36fcbb2
commit b4f46eb2e5
1 changed files with 29 additions and 11 deletions
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40
src/main.c
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@ -5,6 +5,7 @@
#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <libgpio_sys/gpio_sys.h>
#include <libads1115/ads1115.h>
@ -29,32 +30,49 @@ static struct ads1115_dev ads = {
.i2c_slave_address = 0x48,
};
static bool run_condition = true;
static void signal_handler(int sig)
{
printf("Signal catched: %d\n Shutting down...\n", sig);
run_condition = false;
}
int main(void)
{
int res;
struct ads1115_conversation_result result;
struct sigaction sig_int_handler;
sig_int_handler.sa_handler = signal_handler;
sigemptyset(&sig_int_handler.sa_mask);
sig_int_handler.sa_flags = 0;
sigaction(SIGINT, &sig_int_handler, NULL);
res = ads1115_open(&ads);
if(res != 0) {
return res;
}
res = ads1115_start_conversation(&ads);
if(res != 0) {
ads1115_close(&ads);
return res;
}
while(run_condition) {
res = ads1115_start_conversation(&ads);
if(res != 0) {
ads1115_close(&ads);
return res;
}
res = ads1115_read_conversation_result(&ads, &result);
if(res != 0) {
ads1115_close(&ads);
return res;
res = ads1115_read_conversation_result(&ads, &result);
if(res != 0) {
ads1115_close(&ads);
return res;
}
printf("Conversation: %4.3fV (0x%04x).\n", result.voltage, result.raw);
usleep(50000);
}
ads1115_close(&ads);
printf("Conversation: %4.3fV (0x%04x).\n", result.voltage, result.raw);
return res;
}