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January 28, 2015 14:08
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16x16 Dot LED Matrix Display Arduino Hello World
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/** | |
* | |
This program is free software: you can redistribute it and/or modify | |
it under the terms of the GNU General Public License as published by | |
the Free Software Foundation, either version 3 of the License, or | |
(at your option) any later version. | |
This program is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
GNU General Public License for more details. | |
You should have received a copy of the GNU General Public License | |
along with this program. If not, see <http://www.gnu.org/licenses/>. | |
*/ | |
#include <Arduino.h> | |
//IO | |
#define LEDARRAY_D 2 | |
#define LEDARRAY_C 3 | |
#define LEDARRAY_B 4 | |
#define LEDARRAY_A 5 | |
#define LEDARRAY_G 6 | |
#define LEDARRAY_DI 7 | |
#define LEDARRAY_CLK 8 | |
#define LEDARRAY_LAT 9 | |
unsigned char Display_Buffer[2]; | |
unsigned int Word1[32]; | |
//here you'll draw the scene in your screen | |
unsigned char Scene[16][16] = | |
{ | |
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, | |
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1}, | |
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1}, | |
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, | |
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, | |
}; | |
void SceneToWord(){ | |
int i, k, key = 0; | |
unsigned int value; | |
for(i = 0; i < 16; i++){ | |
for(k = 0; k < 16; k++){ | |
if(i < 8){ | |
value = Scene[i][k] << (7 - i); | |
Word1[15 - k] += value; | |
} else { | |
value = Scene[i][k] << (15 - i); | |
Word1[31 - k] += value; | |
} | |
} | |
} | |
} | |
void setup() { | |
pinMode(LEDARRAY_D, OUTPUT); | |
pinMode(LEDARRAY_C, OUTPUT); | |
pinMode(LEDARRAY_B, OUTPUT); | |
pinMode(LEDARRAY_A, OUTPUT); | |
pinMode(LEDARRAY_G, OUTPUT); | |
pinMode(LEDARRAY_DI, OUTPUT); | |
pinMode(LEDARRAY_CLK, OUTPUT); | |
pinMode(LEDARRAY_LAT, OUTPUT); | |
Serial.begin(9600); | |
} | |
//************************************************************ | |
//************************************************************* | |
void Display(unsigned int dat[]) { | |
unsigned char i; | |
for( i = 0 ; i < 16 ; i++ ) | |
{ | |
digitalWrite(LEDARRAY_G, HIGH); | |
Display_Buffer[0] = dat[i]; | |
Display_Buffer[1] = dat[i+16]; | |
Send(Display_Buffer[1]); | |
Send(Display_Buffer[0]); | |
digitalWrite(LEDARRAY_LAT, HIGH); | |
delayMicroseconds(1); | |
digitalWrite(LEDARRAY_LAT, LOW); | |
delayMicroseconds(1); | |
Scan_Line(i); | |
digitalWrite(LEDARRAY_G, LOW); | |
delayMicroseconds(100); | |
} | |
} | |
//**************************************************** | |
//**************************************************** | |
void Scan_Line( unsigned int m) { | |
switch(m) | |
{ | |
case 0: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 1: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 2: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 3: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 4: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 5: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 6: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 7: | |
digitalWrite(LEDARRAY_D, LOW);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 8: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 9: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 10: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 11: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, LOW);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 12: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 13: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, LOW);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
case 14: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, LOW); | |
break; | |
case 15: | |
digitalWrite(LEDARRAY_D, HIGH);digitalWrite(LEDARRAY_C, HIGH);digitalWrite(LEDARRAY_B, HIGH);digitalWrite(LEDARRAY_A, HIGH); | |
break; | |
default : break; | |
} | |
} | |
//**************************************************** | |
//**************************************************** | |
void Send( unsigned int dat) { | |
unsigned char i; | |
digitalWrite(LEDARRAY_CLK, LOW); | |
delayMicroseconds(1);; | |
digitalWrite(LEDARRAY_LAT, LOW); | |
delayMicroseconds(1);; | |
for( i = 0 ; i < 8 ; i++ ) | |
{ | |
if( dat&0x01 ) | |
{ | |
digitalWrite(LEDARRAY_DI, HIGH); | |
} | |
else | |
{ | |
digitalWrite(LEDARRAY_DI, LOW); | |
} | |
delayMicroseconds(1); | |
digitalWrite(LEDARRAY_CLK, HIGH); | |
delayMicroseconds(1); | |
digitalWrite(LEDARRAY_CLK, LOW); | |
delayMicroseconds(1); | |
dat >>= 1; | |
} | |
} | |
void loop() { | |
update(); | |
Display(Word1); | |
} | |
void update(){ | |
clearWord(); | |
SceneToWord(); | |
} | |
void clearWord(){ | |
for(int i = 0; i < 32; i++) | |
Word1[i] = 0; | |
} |
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My need schematic circuit diagram