SegmentsLed.hpp

[詳解]

//
//    7セグメントLED
//
//    Copyright (c) 2022 udonrobo
//
 
#pragma once
 
#ifdef ARDUINO
 
#    include <Udon/Stl/EnableSTL.hpp>
#    include <array>
#    include <vector>
#    include <stdint.h>
 
namespace Udon
{

    class SegmentsLed
    {
        std::array<uint8_t, 7>  cathode;
        std::vector<uint8_t>    anode;
        std::array<uint8_t, 10> format;
 
        uint8_t value;    // 表示する値
        uint8_t digit;    // 表示中の桁
 
    public:
        SegmentsLed(std::array<uint8_t, 7>&&  cathode,
                    std::vector<uint8_t>&&    anode,
                    std::array<uint8_t, 10>&& format = {
                        0b0111111,    // 0
                        0b0000110,    // 1
                        0b1011011,    // 2
                        0b1001111,    // 3
                        0b1100110,    // 4
                        0b1101101,    // 5
                        0b1111101,    // 6
                        0b0100111,    // 7
                        0b1111111,    // 8
                        0b1101111     // 9
                    })
            : cathode(cathode)
            , anode(std::move(anode))
            , format(format)
        {
        }

        void begin()
        {
            for (auto&& pin : cathode)
            {
                pinMode(pin, OUTPUT);
            }
            for (auto&& pin : anode)
            {
                pinMode(pin, OUTPUT);
            }
        }

        void setValue(int num)
        {
            value = num;
        }

        void show()
        {
            // ループ毎に1桁ずつ表示
            const uint8_t single = static_cast<uint8_t>(value / pow(10, digit)) % 10;
 
            // 表示中の桁消灯
            digitalWrite(anode.at(digit), HIGH);
 
            digit++;
            if (digit >= anode.size())
            {
                digit = 0;
            }
 
            for (uint8_t i = 0; i < cathode.size(); i++)
            {
                digitalWrite(cathode.at(i), not bitRead(format.at(single), i));
            }
 
            // 桁点灯
            digitalWrite(anode.at(digit), LOW);
        }
 
        void showNan()
        {
            for (auto&& pin : anode)
            {
                digitalWrite(pin, HIGH);
            }
 
            // 中央のLEDのみ点灯させる
            for (int i = 0; i < 6; ++i)
            {
                digitalWrite(cathode.at(i), HIGH);
            }
            digitalWrite(cathode.at(6), LOW);
        }
    };
 
}    // namespace Udon
 
#endif