esp32-alarm-clock/main/tm1637.h

/*
 * SPDX-FileCopyrightText: 2022 Helmut Pozimski <helmut@pozimski.eu>
 *
 * SPDX-License-Identifier: GPL-2.0-only
 */

#include <stdint.h>
#include <stdbool.h>

typedef struct {
    uint8_t clk_pin;
    uint8_t dio_pin;
    bool show_colon;
    uint8_t brightness;
} tm1637_config;

static const uint16_t NUMERALS[] = {
        0x3f,
        0x06,
        0x5b,
        0x4f,
        0x66,
        0x6d,
        0x7d,
        0x07,
        0x7f,
        0x6f,
        0x00
};

esp_err_t tm1637_init(uint8_t clk_pint, uint8_t dio_pin, bool show_colon, uint8_t brightness);

void tm1637_set_segment(uint8_t value, uint8_t segment, bool enable_display);