arduino怎么实现十个灯随机亮一个？

ID:709644 · 发表于 2020-6-19 23:25

请教大师们，用arduino怎么实现十个灯，第一次随机亮十个中的一个，第二次剩下九个里随机亮一个，第三次，剩下八个里随机亮一个，以此类推，怎么编写程序啊，用不用其他元器件？

ID:155507 · 发表于 2020-6-20 01:07

我给你来个程序参考

long randNumber;
void setup() {
Serial.begin(9600);
// if analog input pin 0 is unconnected, random analog
// noise will cause the call to randomSeed() to generate
// different seed numbers each time the sketch runs.
// randomSeed() will then shuffle the random function.
randomSeed(analogRead(0));
}
void loop() {
// print a random number from 0 to 299
randNumber = random(300);
Serial.println(randNumber);
// print a random number from 10 to 19
randNumber = random(10, 20);
Serial.println(randNumber);
delay(50);
}

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ID:642999 · 发表于 2020-6-20 19:43

可能不是你想要的,但是你可以拿去改动

#include <AT89X52.h>
#include <intrins.h>
#include <stdlib.h>
#define TRUE 1
#define FALSE 0
bit bT0Flg = FALSE;
//U2 595µÄÇý¶¯Òý½Å¶¨Òå
sbit sbSHCP2 = P2^0;
sbit sbDS2 = P2^1;
sbit sbSTCP2 = P2^2;
//U3 595µÄÇý¶¯Òý½Å¶¨Òå
sbit sbSHCP3 = P2^3;
sbit sbDS3 = P2^4;
sbit sbSTCP3 = P2^5;
//U4 595µÄÇý¶¯Òý½Å¶¨Òå
sbit sbSHCP4 = P2^6;
sbit sbDS4 = P2^7;
sbit sbSTCP4 = P3^0;
//U5 595µÄÇý¶¯Òý½Å¶¨Òå
sbit sbSHCP5 = P3^1;
sbit sbDS5 = P3^3;
sbit sbSTCP5 = P3^4;
//U6 595µÄÇý¶¯Òý½Å¶¨Òå
sbit sbSHCP6 = P3^5;
sbit sbDS6 = P3^6;
sbit sbSTCP6 = P3^7;
unsigned char temp2,temp3,temp4,temp5,temp6;
bdata unsigned char sw; //Î»¶¨Òå
sbit sw0 = sw ^ 0;
sbit sw1 = sw ^ 1;
sbit sw2 = sw ^ 2;
sbit sw3 = sw ^ 3;
sbit sw4 = sw ^ 4;
sbit sw5 = sw ^ 5;
sbit sw6 = sw ^ 6;
sbit sw7 = sw ^ 7;
unsigned char code SEGtable[]=
{
0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,
};
/*
void Delay(unsigned int x)
{
unsigned char i;
while(x--)
{
for(i=0;i<120;i++);
}
} */
//595ÊäÈëº¯Êý2ºÅ
void Input5952()
{
unsigned char i;
for(i=0;i<8;i++)
{
temp2 <<= 1;
sbDS2 = CY;
sbSHCP2 = 1;
_nop_();
_nop_();
sbSHCP2 = 0;
}
}
//595Êä³öº¯Êý2ºÅ
void Output5952()
{
sbSTCP2 = 0;
_nop_();
sbSTCP2 = 1;
_nop_();
sbSTCP2 = 0;
}
//595ÊäÈëº¯Êý3ºÅ
void Input5953()
{
unsigned char i;
for(i=0;i<8;i++)
{
temp3 <<= 1;
sbDS3 = CY;
sbSHCP3 = 1;
_nop_();
_nop_();
sbSHCP3 = 0;
}
}
//595Êä³öº¯Êý3ºÅ
void Output5953()
{
sbSTCP3 = 0;
_nop_();
sbSTCP3 = 1;
_nop_();
sbSTCP3 = 0;
}
//595ÊäÈëº¯Êý4ºÅ
void Input5954()
{
unsigned char i;
for(i=0;i<8;i++)
{
temp4 <<= 1;
sbDS4 = CY;
sbSHCP4 = 1;
_nop_();
_nop_();
sbSHCP4 = 0;
}
}
//595Êä³öº¯Êý4ºÅ
void Output5954()
{
sbSTCP4 = 0;
_nop_();
sbSTCP4 = 1;
_nop_();
sbSTCP4 = 0;
}
//595ÊäÈëº¯Êý5ºÅ
void Input5955()
{
unsigned char i;
for(i=0;i<8;i++)
{
temp5 <<= 1;
sbDS5 = CY;
sbSHCP5 = 1;
_nop_();
_nop_();
sbSHCP5 = 0;
}
}
//595Êä³öº¯Êý5ºÅ
void Output5955()
{
sbSTCP5 = 0;
_nop_();
sbSTCP5 = 1;
_nop_();
sbSTCP5 = 0;
}
//595ÊäÈëº¯Êý6ºÅ
void Input5956()
{
unsigned char i;
for(i=0;i<8;i++)
{
temp6 <<= 1;
sbDS6 = CY;
sbSHCP6 = 1;
_nop_();
_nop_();
sbSHCP6 = 0;
}
}
//595Êä³öº¯Êý6ºÅ
void Output5956()
{
sbSTCP6 = 0;
_nop_();
sbSTCP6 = 1;
_nop_();
sbSTCP6 = 0;
}
void initrand(void)
{
unsigned char counter=0;
P1 = 0xff;
sw = P1;
counter = 0; //Í³¼Æ¿ª¹Ø±ÕºÏµÄÊýÂë
if(sw0 == 1)
{
counter++;
}
if(sw1 == 1)
{
counter++;
}
if(sw2 == 1)
{
counter++;
}
if(sw3 == 1)
{
counter++;
}
if(sw4 == 1)
{
counter++;
}
if(sw5 == 1)
{
counter++;
}
if(sw6 == 1)
{
counter++;
}
if(sw7 == 1)
{
counter++;
}
srand(counter); //³õÊ¼»¯ÖÖ×Ó
}
void Timer0Init(void) //¶¨Ê±Æ÷0³õÊ¼»¯º¯Êý
{
TMOD = 0x01; //ÉèÖÃT1¹¤×÷·½Ê½
TH0 = 0x00;
TL0 = 0x0C; //100ms¶¨Ê±
ET0 = 1; //¿ªÆô¶¨Ê±Æ÷0ÖÐ¶Ï
// TR0 = 1; //Æô¶¯¶¨Ê±Æ÷
}
void Timer0Deal(void) interrupt 1 using 1 //¶¨Ê±Æ÷0ÖÐ¶Ï´¦Àíº¯Êý
{
ET0 = 0; //Ê×ÏÈ¹Ø±ÕÖÐ¶Ï
TH0 = 0x00; //È»ºóÖØÐÂ×°ÈëÔ¤ÖÆÖµ
TL0 = 0x0C;
ET0 = 1; //´ò¿ªT0ÖÐ¶Ï
bT0Flg = TRUE; //¶¨Ê±Æ÷ÖÐ¶Ï±êÖ¾Î»
}
EX_INT0() interrupt 0 using 1 //Íâ²¿ÖÐ¶Ï0·þÎñº¯Êý
{
if(TR0 == 1) //ÅÐ¶Ïµ±Ç°¶¨Ê±¼ÆÊýÆ÷µÄ×´Ì¬
{
TR0 = 0;
}
else
{
TR0 = 1;
initrand(); //³õÊ¼»¯ÖÖ×Ó
}
}
void main()
{
unsigned int randdata = 0;
unsigned char wdata,qdata,baidata,sdata,gdata;
Timer0Init(); //³õÊ¼»¯Ê±ÖÓ
IT0 = 1; //ÉèÖÃÍâ²¿ÖÐ¶Ï0´¥·¢·½Ê½ÎªµÍÂö³å
EX0 = 1; //Ê¹ÄÜÍâ²¿ÖÐ¶Ï0
EA = 1; //´ò¿ª´®¿ÚÖÐ¶Ï±êÖ¾
while(1)
{
while(bT0Flg==FALSE); //µÈ´ýÑÓÊ±±êÖ¾Î»
bT0Flg=FALSE;
randdata = 2 * rand(); //»ñµÃËæ»úÊý
wdata = randdata/10000; //Êä³öÍòÎ»
temp2 = SEGtable[wdata];
Input5952();
Output5952();
qdata = randdata%10000/1000; //Êä³öÇ§Î»
temp3 = SEGtable[qdata];
Input5953();
Output5953();
baidata = randdata%1000/100; //Êä³ö°ÙÎ»
temp4 = SEGtable[baidata];
Input5954();
Output5954();
sdata = randdata%100/10; //Êä³ö10Î»
temp5 = SEGtable[sdata];
Input5955();
Output5955();
gdata = randdata%10; //Êä³ö¸öÎ»
temp6 = SEGtable[gdata];
Input5956();
Output5956();
}
}

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