星光璀璨,采用数组和随机数,让键盘灯随机扇动
JB_05代码,星光璀璨
#include <SPI.h>
byte keymap[70] = {0};
void setup() {
pinMode (8, OUTPUT);
pinMode (9, OUTPUT);
pinMode (10, OUTPUT);
digitalWrite(8, HIGH);
SPI.begin();
delay(100);
digitalWrite(9, LOW);
}
byte j=0;
void loop() {
byte l=0;
int i=0;
for(int k=0;k<5;k++)
{
int k2=0xff-((keymap[l++]>i)<<0)-((keymap[l++]>i)<<1)-((keymap[l++]>i)<<2)-((keymap[l++]>i)<<3)-((keymap[l++]>i)<<4)-((keymap[l++]>i)<<5)-((keymap[l++]>i)<<6);
int k1=0xff-((keymap[l++]>i)<<0)-((keymap[l++]>i)<<1)-((keymap[l++]>i)<<2)-((keymap[l++]>i)<<3)-((keymap[l++]>i)<<4)-((keymap[l++]>i)<<5)-((keymap[l++]>i)<<6);
digitalWrite(10, LOW);
SPI.transfer(1<<k);
SPI.transfer(k1);
SPI.transfer(k2);
digitalWrite(10, HIGH);
delay(1);
}
j+=32;
if (j==0)
{
for(int k=0;k<70;k++)
if (keymap[k]>0) keymap[k]-=16;
keymap[random(70)]=64;
}
}
JB_06代码,多行流水灯
#include <SPI.h>
void setup() {
pinMode (8, OUTPUT);
pinMode (9, OUTPUT);
pinMode (10, OUTPUT);
digitalWrite(8, HIGH);
SPI.begin();
digitalWrite(10, LOW);
SPI.transfer(0x00);
SPI.transfer(0xff);
SPI.transfer(0xff);
digitalWrite(10, HIGH);
digitalWrite(9, LOW);
delay(100);
}
void loop() {
int i,j;
for(j=1;j<16;j*=2)
{
for(i=1;i<128;i*=2)
{
digitalWrite(10, LOW);
SPI.transfer(j);
SPI.transfer(0xff);
SPI.transfer((byte)(0xff-i));
digitalWrite(10, HIGH);
delay(50);
}
for(i=1;i<128;i*=2)
{
digitalWrite(10, LOW);
SPI.transfer(j);
SPI.transfer((byte)(0xff-i));
SPI.transfer(0xff);
digitalWrite(10, HIGH);
delay(50);
}
}
}
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