25 lines
516 B
C
25 lines
516 B
C
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#ifndef MORSE_H
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#define MORSE_H
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#include "gpio.h"
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union morse_byte {
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struct {
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unsigned char bits : 5;
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unsigned char mlen : 3;
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};
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unsigned char byte;
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explicit constexpr morse_byte () noexcept : byte (0u) {}
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};
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class Morse {
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const unsigned unit;
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const GpioClass & led;
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public:
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explicit Morse (const GpioClass & pin, const unsigned ms = 100) noexcept;
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const Morse & operator<< (const char * text) const;
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protected:
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void out (const morse_byte mb) const;
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};
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#endif // MORSE_H
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