LoL shield是一个可编程的14 x 9的LED矩阵，其上的每一个led都是单独可寻址的，所以你可以用它来显示任何一个14 x 9的网格。比如滚动文本，玩游戏，显示图像，或者其他任何你想做的事情。
实验元件：
pcduino x 1
LoL shield x 1
pcduino上代码：
#include “core.h”
int blinkdelay = 75; //This basically controls brightness. Lower is dimmer
int runspeed = 20; //smaller = faster
int pin13 =13;
int pin12 =12;
int pin11 =11;
int pin10 =10;
int pin09 =9;
int pin08 =8;
int pin07 =7;
int pin06 =6;
int pin05 =5;
int pin04 =4;
int pin03 =3;
int pin02 =2;
const int pins[] = {
pin13,pin12,pin11,pin10,pin09,pin08,pin07,pin06,pin05,pin04,pin03,pin02
};
const int ledMap[126][2] ={
{pin13, pin05},{pin13, pin06},{pin13, pin07},{pin13, pin08},{pin13, pin09},{pin13, pin10},{pin13, pin11},{pin13, pin12},{pin13, pin04},{pin04, pin13},{pin13, pin03},{pin03, pin13},{pin13, pin02},{pin02, pin13},
{pin12, pin05},{pin12, pin06},{pin12, pin07},{pin12, pin08},{pin12, pin09},{pin12, pin10},{pin12, pin11},{pin12, pin13},{pin12, pin04},{pin04, pin12},{pin12, pin03},{pin03, pin12},{pin12, pin02},{pin02, pin12},
{pin11, pin05},{pin11, pin06},{pin11, pin07},{pin11, pin08},{pin11, pin09},{pin11, pin10},{pin11, pin12},{pin11, pin13},{pin11, pin04},{pin04, pin11},{pin11, pin03},{pin03, pin11},{pin11, pin02},{pin02, pin11},
{pin10, pin05},{pin10, pin06},{pin10, pin07},{pin10, pin08},{pin10, pin09},{pin10, pin11},{pin10, pin12},{pin10, pin13},{pin10, pin04},{pin04, pin10},{pin10, pin03},{pin03, pin10},{pin10, pin02},{pin02, pin10},
{pin09, pin05},{pin09, pin06},{pin09, pin07},{pin09, pin08},{pin09, pin10},{pin09, pin11},{pin09, pin12},{pin09, pin13},{pin09, pin04},{pin04, pin09},{pin09, pin03},{pin03, pin09},{pin09, pin02},{pin02, pin09},
{pin08, pin05},{pin08, pin06},{pin08, pin07},{pin08, pin09},{pin08, pin10},{pin08, pin11},{pin08, pin12},{pin08, pin13},{pin08, pin04},{pin04, pin08},{pin08, pin03},{pin03, pin08},{pin08, pin02},{pin02, pin08},
{pin07, pin05},{pin07, pin06},{pin07, pin08},{pin07, pin09},{pin07, pin10},{pin07, pin11},{pin07, pin12},{pin07, pin13},{pin07, pin04},{pin04, pin07},{pin07, pin03},{pin03, pin07},{pin07, pin02},{pin02, pin07},
{pin06, pin05},{pin06, pin07},{pin06, pin08},{pin06, pin09},{pin06, pin10},{pin06, pin11},{pin06, pin12},{pin06, pin13},{pin06, pin04},{pin04, pin06},{pin06, pin03},{pin03, pin06},{pin06, pin02},{pin02, pin06},
{pin05, pin06},{pin05, pin07},{pin05, pin08},{pin05, pin09},{pin05, pin10},{pin05, pin11},{pin05, pin12},{pin05, pin13},{pin05, pin04},{pin04, pin05},{pin05, pin03},{pin03, pin05},{pin05, pin02},{pin02, pin05}
};
uint16_t BitMap[][9] = {
{1, 0, 0, 0, 0, 0, 0, 0, 0},
{3, 1, 0, 0, 0, 0, 0, 0, 0},
{7, 3, 1, 0, 0, 0, 0, 0, 0},
{15, 7, 3, 1, 0, 0, 0, 0, 0},
{31, 15, 7, 3, 1, 0, 0, 0, 0},
{63, 31, 15, 7, 3, 1, 0, 0, 0},
{127, 63, 31, 15, 7, 3, 1, 0, 0},
{255, 127, 63, 31, 15, 7, 3, 1, 0},
{511, 255, 127, 63, 31, 15, 7, 3, 1},
{1023, 511, 255, 127, 63, 31, 15, 7, 3},
{2047, 1023, 511, 255, 127, 63, 31, 15, 7},
{4095, 2047, 1023, 511, 255, 127, 63, 31, 15},
{8191, 4095, 2047, 1023, 511, 255, 127, 63, 31},
{16383, 8191, 4095, 2047, 1023, 511, 255, 127, 63},
{16383, 16383, 8191, 4095, 2047, 1023, 511, 255, 127},
{16383, 16383, 16383, 8191, 4095, 2047, 1023, 511, 255},
{16383, 16383, 16383, 16383, 8191, 4095, 2047, 1023, 511},
{16383, 16383, 16383, 16383, 16383, 8191, 4095, 2047, 1023},
{16383, 16383, 16383, 16383, 16383, 16383, 8191, 4095, 2047},
{16383, 16383, 16383, 16383, 16383, 16383, 16383, 8191, 4095},
{16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 8191},
{16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383},
{16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383},
{16382, 16383, 16383, 16383, 16383, 16383, 16383, 16383, 16383},
{16380, 16382, 16383, 16383, 16383, 16383, 16383, 16383, 16383},
{16376, 16380, 16382, 16383, 16383, 16383, 16383, 16383, 16383},
{16368, 16376, 16380, 16382, 16383, 16383, 16383, 16383, 16383},
{16352, 16368, 16376, 16380, 16382, 16383, 16383, 16383, 16383},
{16320, 16352, 16368, 16376, 16380, 16382, 16383, 16383, 16383},
{16256, 16320, 16352, 16368, 16376, 16380, 16382, 16383, 16383},
{16128, 16256, 16320, 16352, 16368, 16376, 16380, 16382, 16383},
{15872, 16128, 16256, 16320, 16352, 16368, 16376, 16380, 16382},
{15360, 15872, 16128, 16256, 16320, 16352, 16368, 16376, 16380},
{14336, 15360, 15872, 16128, 16256, 16320, 16352, 16368, 16376},
{12288, 14336, 15360, 15872, 16128, 16256, 16320, 16352, 16368},
{8192, 12288, 14336, 15360, 15872, 16128, 16256, 16320, 16352},
{0, 8192, 12288, 14336, 15360, 15872, 16128, 16256, 16320},
{0, 0, 8192, 12288, 14336, 15360, 15872, 16128, 16256},
{0, 0, 0, 8192, 12288, 14336, 15360, 15872, 16128},
{0, 0, 0, 0, 8192, 12288, 14336, 15360, 15872},
{0, 0, 0, 0, 0, 8192, 12288, 14336, 15360},
{0, 0, 0, 0, 0, 0, 8192, 12288, 14336},
{0, 0, 0, 0, 0, 0, 0, 8192, 12288},
{0, 0, 0, 0, 0, 0, 0, 0, 8192},
{0, 0, 0, 0, 0, 0, 0, 0, 0},
{18000}
};
void blinkall(int);
void DisplayBitMap();
void setup() {
blinkall(2); // useful for testing
}
void loop() {
//sequenceon(); // useful for testing
DisplayBitMap();
}
void turnon(int led) {
int pospin = ledMap[led][0];
int negpin = ledMap[led][1];
pinMode (pospin, OUTPUT);
pinMode (negpin, OUTPUT);
digitalWrite (pospin, HIGH);
digitalWrite (negpin, LOW);
}
void alloff() {
int i ;
for ( i = 2;i <=13;i++){
pinMode(i,INPUT);
}
}
void DisplayBitMap()
{
boolean run=true;
byte frame = 0;
byte line = 0;
unsigned long data;
while(run == true) {
for(int i = 0; i < runspeed; i++) {
for(line = 0; line < 9; line++) {
data = BitMap[frame][line];
if (data==18000){
run=false;
}
else for (byte led=0; led<14; ++led) {
if (data & (1<<led)) {
turnon((line*14)+led);
delayMicroseconds(blinkdelay);
alloff();
}
else {
delayMicroseconds(blinkdelay);
}
}
}
} frame++;
}
}
void blinkall(int numblink) {
alloff();
for(int n = 0;n < numblink;n++) {
for(int i = 0; i < runspeed; i++) {
for(int j = 0; j < 126; j++) {
turnon(j);
delayMicroseconds(blinkdelay);
alloff();
}
}
delay(500);
}
}
void sequenceon() {
for(int i = 0; i < 126; i++) {
turnon(i);
delay(800);
alloff();
delay(800);
}
}
实验效果：
led从左上角开始沿着斜对角一行一行地被点亮。然后所有的led亮了之后再从左上角开始一行一行地熄灭。
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发表于 2013-12-20 10:14:05