$$config title: 아두이노 도트매트릭스 코드 keywords: - IT - 아두이노 - 도트매트릭스 $$ ~~~c #include int pins[17] = {-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, A0, A1}; int GreenCols[8] = {pins[1], pins[2], pins[3], pins[4], pins[5], pins[6], pins[7], pins[8]}; int RedCols[8] = {pins[9], pins[10], pins[11], pins[12], pins[13], pins[14], pins[15], pins[16]}; const int Data = A2; const int ST_CK = A3; const int SH_CK = A4; byte Alpha_dots[26][8] = { 0x8, 0x14, 0x22, 0x22, 0x3e, 0x22, 0x22, 0x22, // A 0x3e, 0x42, 0x42, 0x3e, 0x42, 0x42, 0x42, 0x3e, // B 0x38, 0x44, 0x2, 0x2, 0x2, 0x2, 0x44, 0x38, // C 0x3e, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x3e, // D 0x7e, 0x2, 0x2, 0x7e, 0x2, 0x2, 0x2, 0x7e, // E 0x7e, 0x2, 0x2, 0x3e, 0x2, 0x2, 0x2, 0x2, // F 0x3c, 0x42, 0x2, 0x2, 0x72, 0x42, 0x42, 0x3c, // G 0x22, 0x22, 0x22, 0x3e, 0x22, 0x22, 0x22, 0x22, // H 0x1c, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x1c, // I 0x3c, 0x10, 0x10, 0x10, 0x10, 0x10, 0x14, 0x8, // J 0x42, 0x22, 0x12, 0xa, 0xe, 0x12, 0x22, 0x42, // K 0x2, 0x2, 0x2, 0x2, 0x2, 0x2, 0x7e, // L 0x22, 0x22, 0x36, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, // M 0x42, 0x42, 0x46, 0x4a, 0x52, 0x62, 0x42, 0x42, // N 0x18, 0x24, 0x42, 0x42, 0x42, 0x42, 0x24, 0x18, // O 0x3e, 0x42, 0x42, 0x3e, 0x2, 0x2, 0x2, 0x2, // P 0x18, 0x24, 0x42, 0x42, 0x42, 0x52, 0x24, 0x58, // Q 0x3e, 0x42, 0x42, 0x3e, 0xa, 0x12, 0x22, 0x42, // R 0x3c, 0x42, 0x2, 0x3c, 0x40, 0x40, 0x42, 0x3c, // S 0x3e, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, // T 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x3c, // U 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x14, 0x8, // V 0x22, 0x22, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x14, // W 0x42, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x42, // X 0x22, 0x22, 0x22, 0x14, 0x8, 0x8, 0x8, 0x8, // Y 0x7e, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x7e, // Z }; unsigned int NumCnt = 0; unsigned char RowAllDotsOff = 8; void ShiftRegister(unsigned char data) { int i = 0; digitalWrite(ST_CK, LOW); for(i = 0;i < 8; i++) { digitalWrite(SH_CK, LOW); if(data & (0x80 >> i)) { digitalWrite(Data, HIGH); } else { digitalWrite(Data, LOW); } digitalWrite(SH_CK, HIGH); } digitalWrite(ST_CK, HIGH); } void RowDotsControl(unsigned char data) { switch (data) { case 0: ShiftRegister(0x80); break; case 1: ShiftRegister(0x40); break; case 2: ShiftRegister(0x20); break; case 3: ShiftRegister(0x10); break; case 4: ShiftRegister(0x08); break; case 5: ShiftRegister(0x04); break; case 6: ShiftRegister(0x02); break; case 7: ShiftRegister(0x01); break; case RowAllDotsOff: ShiftRegister(0x00); break; } } void DotmatrixDisplay() { for(int i = 0; i < 8; i++) { for(int j = 0;j < 8; j++) { if((Alpha_dots[NumCnt][i] & 1 << j)) { digitalWrite(RedCols[j], LOW); } else digitalWrite(RedCols[j], HIGH); } RowDotsControl(i); delay(1); RowDotsControl(RowAllDotsOff); } } void ClearDots() { for(int i = 0; i < 8; i++) { for(int j = 0; j < 8; j++) { digitalWrite(GreenCols[j]. HIGH); RowDotsControl(i); } } for(int i = 0; i < 8; i++) { for(int j = 0; j < 8; j++) { digitalWrite(RedCols[J], HIGH); RowDotsControl(i); } } } void Timer() { static unsigned int cnt = 0; cnt++; if(cnt == 1000) { cnt = 0; NumCnt++; if(NumCnt == 26) { NumCnt = 0; } } } void setup() { pinMode(0, OUTPUT); pinMode(1, OUTPUT); pinMode(2, OUTPUT); pinMode(3, OUTPUT); pinMode(4, OUTPUT); pinMode(5, OUTPUT); pinMode(6, OUTPUT); pinMode(7, OUTPUT); pinMode(8, OUTPUT); pinMode(9, OUTPUT); pinMode(10, OUTPUT); pinMode(11, OUTPUT); pinMode(12, OUTPUT); pinMode(13, OUTPUT); pinMode(A0, OUTPUT); pinMode(A1, OUTPUT); pinMode(SH_CK, OUTPUT); pinMode(ST_CK, OUTPUT); pinMode(DS, OUTPUT); FrequencyTimer2::setPeriod(1000); FrequencyTimer2::setOnOverflow(Timer); ClearDots(); } void loop() { DotmatrixDisplay(); } ~~~

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