zavlaha-kzk/src/app_io.c

/**
 * TODO file description
 */

#include <stdbool.h>
#include <hardware/gpio.h>
#include <hardware/adc.h>
#include "app_io.h"
#include "pinout.h"
#include "app_config.h"


void set_relays(bool one, bool two, bool three, bool four)
{
    gpio_put(PIN_RE1, one);
    gpio_put(PIN_RE2, two);
    gpio_put(PIN_RE3, three);
    gpio_put(PIN_RE1, four);
}

void open_valve(uint8_t num)
{
    gpio_put(PIN_RE1, num == 1);
    gpio_put(PIN_RE2, num == 2);
    gpio_put(PIN_RE3, num == 3);
    gpio_put(PIN_RE4, num == 4);
}

uint16_t moisture_read()
{
    adc_select_input(ADC_NUM_MOISTURE);
    return adc_read();
}

uint16_t moisture_convert(uint16_t moisture)
{
    uint32_t moisture_pt;
    if (moisture >= app_config.moisture_dry) {
        moisture_pt = 0;
    } else if (moisture <= app_config.moisture_wet) {
        moisture_pt = 100;
    } else {
        moisture_pt = ((uint32_t) (app_config.moisture_dry - moisture) * 100)
                      / (app_config.moisture_dry - app_config.moisture_wet);
    }
    return (uint16_t) moisture_pt;
}