53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
const static PROGMEM uint8_t DECODER[] = {
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0b10000001, // 0
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0b11001111, // 1
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0b10010010, // 2
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0b10000110, // 3
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0b11001100, // 4
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0b10100100, // 5
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0b10100000, // 6
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0b10001111, // 7
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0b10000000, // 8
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0b10000100, // 9
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0b11111111, // off
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0b11111110, // -
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};
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template<uint8_t PIN_SER, uint8_t PIN_SCLK, uint8_t PIN_RCLK>
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class SegmentDisplay {
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uint8_t number[2];
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public:
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SegmentDisplay() {
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pinMode(PIN_SER, OUTPUT);
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pinMode(PIN_SCLK, OUTPUT);
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pinMode(PIN_RCLK, OUTPUT);
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setOff();
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}
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void set(uint8_t number) {
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uint8_t num = constrain(number, 0, 99);
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this->number[0] = pgm_read_byte_near(DECODER + num % 10);
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this->number[1] = pgm_read_byte_near(DECODER + num / 10);
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}
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void setOff() {
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number[0] = 0xFF;
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number[1] = 0xFF;
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}
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void setDash() {
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number[0] = pgm_read_byte_near(DECODER + 11);
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number[1] = pgm_read_byte_near(DECODER + 11);
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}
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void write() {
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shiftOut(PIN_SER, PIN_SCLK, LSBFIRST, number[0]);
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shiftOut(PIN_SER, PIN_SCLK, LSBFIRST, number[1]);
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digitalWrite(PIN_RCLK, HIGH);
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delay(1);
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digitalWrite(PIN_RCLK, LOW);
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}
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};
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