Difference between revisions of "Lesson 2--Microduino "Multiple LEDs""

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(Created page with "{| style="width: 800px;" |- | ==Objective== Have learned how to control a LED, now we can go on learn how to control Multiple led flashing turn. ==Equipment== *'''Microduin...")
 
Line 8: Line 8:
 
*'''[[Microduino-Core]]'''
 
*'''[[Microduino-Core]]'''
 
*'''[[Microduino-FT232R]]'''
 
*'''[[Microduino-FT232R]]'''
−
*其他硬件设备
+
*Other hardware equipment
−
**面包板跳线  一盒 
+
**Breadboard Jumper            one box   
−
**面包板  一块 
+
**Breadboard                one piece
−
**LED发光二极管  八个  
+
**LED Light-emitting diodes    eight  
−
**220欧姆电阻  八个 
+
**220ohm resistor        eight
−
**USB数据连接线  一根
+
**USB Data cable              one
  
−
==原理图==
+
==Experimental schematic==
−
*led的阴极接Microduino的GND，阳极接Microduino数据控制口D3~D10，这样就是高电平点亮led。
+
*led cathode connected GND of Microduino, anode connect to digital I/O port D3 ~ D10, this is the high light led.
−
*led的阴极接Microduino的数据控制口D3~D10，阳极接Microduino的VCC，这样就是低电平点亮led。
+
*led cathode connected to Microduino digital I/O port D3 ~ D10, anode connected VCC of Microduino, so that low-level light led.
−
其实数码管共阴、共阳就是这个原理，以后会详细介绍驱动数码管。
+
In fact, this is the some principle as Nixie tube control of common cathode and common anode, we will give detailed introduction for how derive Nixie tube.
  
 
[[File:第二课-原理图.jpg|600px|center|thumb]]
 
[[File:第二课-原理图.jpg|600px|center|thumb]]
  
−
==程序==
+
==Program==
−
*采用数据口直接输出
+
*Using I/O port output directly
 
<source lang="cpp">
 
<source lang="cpp">
 
void setup() {                 
 
void setup() {                 
−
//定义microduino数字D3~D10脚为输出    
+
//Define microduino digital I/O port D3~D10 as output    
 
   for(int i=3;i<11;i++)
 
   for(int i=3;i<11;i++)
 
   pinMode(i, OUTPUT);     
 
   pinMode(i, OUTPUT);     
Line 33: Line 33:
 
   for(int i=3;i<11;i++)
 
   for(int i=3;i<11;i++)
 
   {
 
   {
−
   digitalWrite(i, HIGH); // 数据口i(D3~D10)输出高电平
+
   digitalWrite(i, HIGH); // Digital I/O port i(D3~D10) outputs high
−
   delay(50);            //延时50ms  
+
   delay(50);            //delay 50ms  
−
   digitalWrite(i, LOW); //// 数据口i(D3~D10)输出低电平
+
   digitalWrite(i, LOW); //// Digital I/O port i(D3~D10) outputs low
−
   delay(50);          //延时50ms    
+
   delay(50);          //delay 50ms    
 
   }
 
   }
 
}
 
}
 
</source>
 
</source>
−
*采用16进制数组，将数据移位输出送至每个I/O口，花样流水
+
 
 +
*Using 16-band array, the output data is shifted to the each I / O port, synchronized flow
 
<source lang="cpp">
 
<source lang="cpp">
 
/*===============================================
 
/*===============================================
−
ox（高-低：10，9，8，7）（高-低：6，5，4，3）
+
ox（High-low：10，9，8，7）（High-low：6，5，4，3）
−
例如
+
Example
 
0x81:10000001
 
0x81:10000001
 
10,9,8,7,6,5,4,3
 
10,9,8,7,6,5,4,3
−
↓  ↓ ↓ ↓↓ ↓↓ ↓
+
↓↓↓↓↓↓↓↓
−
1 0 0 0 0 0 0 1
+
1 0 0 0 0 0 0 1
−
在共阴即所有led阴极都接在一起情况下，1代表亮，0代表灭，
+
In common cathode that all led cathode are connected together, 1 on behalf of on, 0 for off,
−
就可以通过数组形式直接控制亮度。
+
then use number in the array to control the LED.
 
=================================================*/
 
=================================================*/
 
long  data[]=
 
long  data[]=
 
{
 
{
−
   0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,//单独一个从左至右亮
+
   0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,//From left to right light
−
   0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01,//单独一个从从右至左亮
+
   0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01,//From right to left light
−
   0x81,0x42,0x24,0x18,0x18,0x24,0x42,0x81,//两边往中间亮及中间往两边亮
+
   0x81,0x42,0x24,0x18,0x18,0x24,0x42,0x81,//Both sides to the middle and middle to both sides bright light
−
   0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff,//从左到右依次点亮
+
   0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff,//Lit from left to right
−
   0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,//从右到左依次熄灭
+
   0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,//From right to left extinguished
 
};
 
};
  
Line 65: Line 66:
 
   for(int x=3;x<11;x++)  
 
   for(int x=3;x<11;x++)  
 
   {
 
   {
−
     pinMode(x,OUTPUT);//设置输出引脚
+
     pinMode(x,OUTPUT);//Set the output pin
 
   }   
 
   }   
 
}
 
}
Line 72: Line 73:
 
void loop()  
 
void loop()  
 
{
 
{
−
   for(int x=0;x<40;x++)//分别读取不同花样灯
+
   for(int x=0;x<40;x++)//Reading different pattern's lights
 
   {
 
   {
 
     leddisplay(data[x]);
 
     leddisplay(data[x]);
−
     delay(200); //每个状态显示200ms
+
     delay(200); //Every state displays 200ms
 
   }
 
   }
−
   leddisplay(0x00);//循环完毕全灭
+
   leddisplay(0x00);//Cycle is completed, then all extinguished
 
   delay(200);
 
   delay(200);
 
}
 
}
  
−
void leddisplay(int num)    // 将花样字模对应到端口显示
+
void leddisplay(int num)    // Mapping the pattern matrix to the port display
 
{
 
{
−
  /*====================================================================
+
/*====================================================================
−
  先将16进制数向右移x位（num>>x），x代表了microduinoI/O口对应16进制的某位，
+
Firstly right shift the hexadecimal number x bits (num >> x),
−
  0是最低位，7是最高位。再将移的数据与0x01按位与，就可以得到16进制数某位的
+
x represents the microduino I/O port corresponding hexadecimal bit,
−
  数据（0或1），再将其值赋值给microduino的I/O就行。
+
0 is the lowest bit, bit 7 is the highest bit.
 +
Then the shifted data with with 0x01 bitwise AND operation and you can get a certain hexadecimal data (0 or 1),
 +
then the value assigned to microduino of I/O port. 
 
  ====================================================================*/
 
  ====================================================================*/
 
   digitalWrite(3, ((num>>0)&0x01));
 
   digitalWrite(3, ((num>>0)&0x01));
Line 98: Line 101:
 
}
 
}
 
</source>
 
</source>
−
此实验类似51单片机流水灯写法，将16进制数组赋值到I/O，比如0x18表示2进制的00011000，对应值为“1”的灯亮，“0”的灭。能简单随意的写出各种花样。
+
This experiment similar with the 51 microcontroller running water light writing, assign the hexadecimal array values to the I/O port to light the LED. Such as 0x18 is equivalent to binary 00011000, the corresponding value to "1" on, "0" off. You can write all kinds of tricks randomly.
−
两个实验比较，第一个实验看起来简单，效果单一，并且输出口必须连续，局限性很大。第二个实验就优化了，利用数组，将16进制的每位得值都赋值给指定的I/O口，可以实现花样流水。
+
 
 +
Compared two experiments, the first experiment looks simple, single effect, and the output port must be continuous, and the limitation is very big.The second experiment is optimized, using an array, the hexadecimal number's each value is assigned to the specified I/O port, can realize water light designs.
 +
 
 +
 
 +
==Result==
 +
*Program 1
 +
From left to right in turn cycle lit each led
 +
*Program 2
 +
You can see five pattern effect：From left to right light,From right to left light,Both sides to the middle and middle to both sides bright light,Lit from left to right and From right to left extinguished.
 +
 
  
−
==结果==
+
==Video==
−
*程序1
 
−
led从左到右依次循环点亮每一个led。
 
−
*程序2
 
−
可以看到五种花样效果：单独一个从左至右亮；单独一个从从右至左亮；两边往中间亮及中间往两边亮；从左到右依次点亮；从右到左依次熄灭。
 
−
==视频==
 
  
 
|}
 
|}

Revision as of 07:13, 8 February 2014

Objective

Have learned how to control a LED, now we can go on learn how to control Multiple led flashing turn.

Equipment

  • Microduino-Core
  • Microduino-FT232R
  • Other hardware equipment
    • Breadboard Jumper one box
    • Breadboard one piece
    • LED Light-emitting diodes eight
    • 220ohm resistor eight
    • USB Data cable one

Experimental schematic

  • led cathode connected GND of Microduino, anode connect to digital I/O port D3 ~ D10, this is the high light led.
  • led cathode connected to Microduino digital I/O port D3 ~ D10, anode connected VCC of Microduino, so that low-level light led.

In fact, this is the some principle as Nixie tube control of common cathode and common anode, we will give detailed introduction for how derive Nixie tube.

File:第二课-原理图.jpg
600px

Program

  • Using I/O port output directly
void setup() {                
//Define microduino digital I/O port D3~D10 as output   
  for(int i=3;i<11;i++)
  pinMode(i, OUTPUT);     
}
void loop() {
  for(int i=3;i<11;i++)
  {
  digitalWrite(i, HIGH); // Digital I/O port i(D3~D10) outputs high
  delay(50);            //delay 50ms  
  digitalWrite(i, LOW); //// Digital I/O port i(D3~D10) outputs low
  delay(50);           //delay 50ms    
  }
}
  • Using 16-band array, the output data is shifted to the each I / O port, synchronized flow
/*===============================================
ox（High-low：10，9，8，7）（High-low：6，5，4，3）
Example
0x81:10000001
10,9,8,7,6,5,4,3
↓↓↓↓↓↓↓↓
1 0 0 0 0 0 0 1
In common cathode that all led cathode are connected together, 1 on behalf of on, 0 for off,
then use number in the array to control the LED.
=================================================*/
long  data[]=
{
  0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,//From left to right light
  0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01,//From right to left light
  0x81,0x42,0x24,0x18,0x18,0x24,0x42,0x81,//Both sides to the middle and middle to both sides bright light
  0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff,//Lit from left to right
  0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,//From right to left extinguished
};

void setup() 
{                
  for(int x=3;x<11;x++) 
  {
    pinMode(x,OUTPUT);//Set the output pin
  }  
}


void loop() 
{
  for(int x=0;x<40;x++)//Reading different pattern's lights
  {
    leddisplay(data[x]);
    delay(200); //Every state displays 200ms
  }
  leddisplay(0x00);//Cycle is completed, then all extinguished
  delay(200);
}

void leddisplay(int num)    // Mapping the pattern matrix to the port display
{
/*====================================================================
Firstly right shift the hexadecimal number x bits (num >> x), 
x represents the microduino I/O port corresponding hexadecimal bit, 
0 is the lowest bit, bit 7 is the highest bit. 
Then the shifted data with with 0x01 bitwise AND operation and you can get a certain hexadecimal data (0 or 1),
then the value assigned to microduino of I/O port.  
 ====================================================================*/
  digitalWrite(3, ((num>>0)&0x01));
  digitalWrite(4, ((num>>1)&0x01));
  digitalWrite(5, ((num>>2)&0x01));
  digitalWrite(6, ((num>>3)&0x01));
  digitalWrite(7, ((num>>4)&0x01));
  digitalWrite(8, ((num>>5)&0x01));
  digitalWrite(9,((num>>6)&0x01));
  digitalWrite(10,((num>>7)&0x01));
}

This experiment similar with the 51 microcontroller running water light writing, assign the hexadecimal array values to the I/O port to light the LED. Such as 0x18 is equivalent to binary 00011000, the corresponding value to "1" on, "0" off. You can write all kinds of tricks randomly.

Compared two experiments, the first experiment looks simple, single effect, and the output port must be continuous, and the limitation is very big.The second experiment is optimized, using an array, the hexadecimal number's each value is assigned to the specified I/O port, can realize water light designs.


Result

  • Program 1

From left to right in turn cycle lit each led

  • Program 2

You can see five pattern effect：From left to right light,From right to left light,Both sides to the middle and middle to both sides bright light,Lit from left to right and From right to left extinguished.


Video

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