main.c

#include <stdio.h>
#include <stdbool.h>

#include "pico/stdlib.h"
#include "hardware/adc.h"

/* このファイルでヘッダー実装を有効化（1翻訳単位のみで定義する） */
#define IR_TEMP_RAW_IMPLEMENTATION
#include "infrared_temp_raw.h"

#define SUR_TEMP_PIN 26  /* GP26 = ADC0 */
#define OBJ_TEMP_PIN 27  /* GP27 = ADC1 */

/* true: 電圧も表示 / false: 温度のみ表示 */
static const bool kPrintVoltage = true;

/* ADCを10回平均して生データ（0..4095）を返す */
static uint16_t read_adc_avg(const uint adc_channel) {
    uint32_t sum = 0;
    for (int i = 0; i < 10; i++) {
        adc_select_input(adc_channel);
        sum += adc_read();
        sleep_ms(10);
    }
    return (uint16_t)(sum / 10U);
}

int main(void) {
    stdio_init_all();
    adc_init();
    adc_gpio_init(SUR_TEMP_PIN);
    adc_gpio_init(OBJ_TEMP_PIN);
    sleep_ms(2000);

    ir_temp_config_t cfg = ir_temp_default_config();
    /* 必要に応じて現場キャリブレーション値だけ調整 */
    cfg.temp_calibration_c = 0.0f;
    cfg.object_calibration_c = 0.0f;

    while (1) {
        uint16_t sur_raw = read_adc_avg(0);
        uint16_t obj_raw = read_adc_avg(1);

        ir_temp_result_t result;
        ir_temp_voltage_t voltages;
        bool ok = ir_temp(sur_raw, obj_raw, &cfg, &result);
        if (kPrintVoltage) {
            ir_temp_voltages(sur_raw, obj_raw, &cfg, &voltages);
        }

        if (ok) {
            printf("SUR=%.2fC\tOBJ=%.2fC", result.surrounding_temp_c, result.object_temp_c);
            if (kPrintVoltage) {
                printf("\tVSUR=%.3fV\tVOBJ=%.3fV\tVDELTA=%.3fV",
                       voltages.sur_ntc_voltage_v,
                       voltages.obj_voltage_v,
                       voltages.obj_delta_voltage_v);
            }
            printf("\n");
        } else {
            printf("SUR=%.2fC\tOBJ=out of range", result.surrounding_temp_c);
            if (kPrintVoltage) {
                printf("\tVSUR=%.3fV\tVOBJ=%.3fV\tVDELTA=%.3fV",
                       voltages.sur_ntc_voltage_v,
                       voltages.obj_voltage_v,
                       voltages.obj_delta_voltage_v);
            }
            printf("\n");
        }

        sleep_ms(500);
    }
}