====== Led Array ====== //__About this Article__// * **Author**: aaron --- aaron@cubietech.com --- 2014/02/27 20:47 * **Copyrights**: [[http://creativecommons.org/licenses/by-sa/3.0/|CC Attribution-Share Alike 3.0 Unported]] * **Contributors**: [[http://cubieboard.org/|Cubieboard Community]] : ... ===== Abstract ===== How to do this,please refer to [[http://docs.cubieboard.org/tutorials/arduino/controlling_led |light led]] and [[http://docs.cubieboard.org/tutorials/arduino/connecting|how to connect cubieboard and arduino]] {{:tutorials:arduino:20140227_191102.gif|400}} {{:tutorials:arduino:照片_1_.jpg|400}} =====Schematics===== {{:tutorials:arduino:led_.png|400}} ====Source Code==== #define display_array_size 8 // ascii 8x8 dot font #define data_null 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // null char #define data_ascii_A 0x02,0x0C,0x18,0x68,0x68,0x18,0x0C,0x02 /*"A",0*/ /** **"A" #define A { // {0, 0, 0, 0, 0, 0, 1, 0}, //0x02 {0, 0, 0, 0, 1, 1, 0, 0}, //0x0C {0, 0, 0, 1, 1, 0, 0, 0}, //0x18 {0, 1, 1, 0, 1, 0, 0, 0}, //0x68 {0, 1, 1, 0, 1, 0, 0, 0}, //0x68 {0, 0, 0, 1, 1, 0, 0, 0}, //0x18 {0, 0, 0, 0, 1, 1, 0, 0}, //0x0C {0, 0, 0, 0, 0, 0, 1, 0} //0x02 } **/ #define data_ascii_B 0x00,0x7E,0x52,0x52,0x52,0x52,0x2C,0x00 /*"B",1*/ #define data_ascii_C 0x00,0x3C,0x66,0x42,0x42,0x42,0x2C,0x00 /*"C",2*/ #define data_ascii_D 0x00,0x7E,0x42,0x42,0x42,0x66,0x3C,0x00 /*"D",3*/ #define data_ascii_E 0x00,0x7E,0x52,0x52,0x52,0x52,0x52,0x42 /*"E",4*/ #define data_ascii_F 0x00,0x7E,0x50,0x50,0x50,0x50,0x50,0x40 /*"F",5*/ #define data_ascii_G 0x00,0x3C,0x66,0x42,0x42,0x52,0x16,0x1E /*"G",6*/ #define data_ascii_H 0x00,0x7E,0x10,0x10,0x10,0x10,0x7E,0x00 /*"H",7*/ #define data_ascii_I 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00 /*"I",8*/ // display array byte data_ascii[][display_array_size] = { data_null, data_ascii_A, data_ascii_B, data_ascii_C, data_ascii_D, data_ascii_E, data_ascii_F, data_ascii_G, data_ascii_H, data_ascii_I, }; //the pin to control ROW const int row1 = 2; // the number of the row pin 24 const int row2 = 3; // the number of the row pin 23 const int row3 = 4; // the number of the row pin 22 const int row4 = 5; // the number of the row pin 21 const int row5 = 17; // the number of the row pin 4 const int row6 = 16; // the number of the row pin 3 const int row7 = 15; // the number of the row pin 2 const int row8 = 14; // the number of the row pin 1 //the pin to control COl const int col1 = 6; // the number of the col pin 20 const int col2 = 7; // the number of the col pin 19 const int col3 = 8; // the number of the col pin 18 const int col4 = 9; // the number of the col pin 17 const int col5 = 10; // the number of the col pin 16 const int col6 = 11; // the number of the col pin 15 const int col7 = 12; // the number of the col pin 14 const int col8 = 13; // the number of the col pin 13 void displayNum(byte rowNum,int colNum) { int j; byte temp = rowNum; for(j=2;j<6;j++) { digitalWrite(j, LOW); } digitalWrite(row5, LOW); digitalWrite(row6, LOW); digitalWrite(row7, LOW); digitalWrite(row8, LOW); for(j=6;j<14;j++) { digitalWrite(j, HIGH); } switch(colNum) { case 1: digitalWrite(col1, LOW); break; case 2: digitalWrite(col2, LOW); break; case 3: digitalWrite(col3, LOW); break; case 4: digitalWrite(col4, LOW); break; case 5: digitalWrite(col5, LOW); break; case 6: digitalWrite(col6, LOW); break; case 7: digitalWrite(col7, LOW); break; case 8: digitalWrite(col8, LOW); break; default: break; } for(j = 1 ;j < 9; j++) { temp = (0x80)&(temp) ; if(temp==0) { temp = rowNum< ===== Headline ===== === See Also === {{tag>Cubieboard Cubietruck}}