#pragma once #define E7M_MATRIX_SIZE 4 #define E7M_MIN_LEVEL 100 #define E7M_MAX_LEVEL 800 #define E7M_MIN_BRIGHT 0 #define E7M_MAX_BRIGHT 15 #define E7M_LDR_PIN A7 #define E7M_LED_PIN 3 #include "E7Clock.h" #include "E7Symbol.h" #include #include #include class E7Matrix { private: MAX7219< E7M_MATRIX_SIZE, 1, 6, 7, 5 > _matrix; uint32_t _tmr; uint8_t _state; uint16_t _delay[3]; uint8_t _bright; static const E7Symbol _e7s; void _updateBright() { uint16_t val = 1024 - analogRead(E7M_LDR_PIN); _bright = map( constrain(val, E7M_MIN_LEVEL, E7M_MAX_LEVEL), E7M_MIN_LEVEL, E7M_MAX_LEVEL, E7M_MIN_BRIGHT, E7M_MAX_BRIGHT); _matrix.setBright(_bright); } void _updateView(String text, bool showDot = false) { _matrix.clear(); for (uint8_t seg = 0; seg < E7M_MATRIX_SIZE; seg++) { uint8_t glyph[8]; if (_bright > 1) { _e7s.convertBigGlyphTo8x8(_e7s.getBigSymbolGlyph(text.charAt(seg)), glyph); } else { _e7s.convertMediumGlyphTo8x8(_e7s.getMediumSymbolGlyph(text.charAt(seg)), glyph); } for (uint8_t i = 0; i < 8; i++) { _matrix.setCursor(seg * 8 + i, 0); _matrix.drawByte(glyph[i]); } } _matrix.update(); _updateDot(showDot); } void _updateDot(bool showDot = false) { analogWrite(E7M_LED_PIN, showDot ? (_bright * 2 + 1) : 0); } public: E7Matrix(uint8_t time_delay = 10, uint8_t date_delay = 3, uint8_t temp_delay = 3) : _delay{ static_cast(time_delay * 1000u), static_cast(date_delay * 1000u), static_cast(temp_delay * 1000u) }, _bright(E7M_MIN_BRIGHT) {} void update(E7Clock clock) { char format_time[] = "hhmm"; char format_date[] = "DDMM"; DateTime now = clock.now(); _updateBright(); switch (_state) { case 0: _updateView(String(now.toString(format_time)), now.second() % 2); break; case 1: _updateView(String(now.toString(format_date)), true); break; case 2: int8_t iTemp = clock.getTempInt(); char sTemp[5]; if (iTemp == 0) { snprintf(sTemp, 5, " 0C"); } else { snprintf(sTemp, 5, " %c%02d", iTemp < 0 ? '-' : '+', abs(iTemp)); } _updateView(String(sTemp), false); break; } if (millis() - _tmr >= _delay[_state]) { _tmr = millis(); _state = (_state + 1) % 3; } } void begin() { _tmr = millis(); _matrix.begin(); _matrix.setRotation(3); _updateBright(); _updateDot(); } uint8_t getBright() { return _bright; } }; const E7Symbol E7Matrix::_e7s;