;D.........
8x8 LED Dot Matrix 2 Color + 74HC595
That's insane!!!!!!
It would suck if you had made a mistake.
So, does each register do one of the following: red, green, rows?
If so, isn't there a risk of current damaging the leds (don't see resistors) or current damaging the rows register (don't think it can sink that much)?
Now, you just need to use one of the mini arduinos (nano, mini, etc) and just attach to the back, and then you have a super-compact led matrix!
Nice work!
Very cool. You have a schematic and code you can post?
Lefty
Sciguy
Thank you. For instructions. 
595 595 595 Freeduino
PIN 16 <==> PIN 16 <==> PIN 16 ====> digital pin 13
PIN 12 <==> PIN 12 <==> PIN 12 ====> digital pin 8
PIN 11 <==> PIN 11 <==> PIN 11 ====> digital pin 12
pin 14 ======================> digital pin 9
pin 14 =============> digital pin 10
pin 14 ====> digital pin 11
retrolefty
This is my code.
int latchPin = 8;
int clockPin = 12;
int dataPin = 9;
int dataPinRed = 10;
int dataPinGreen = 11;
int powerPin = 13;
byte data;
byte dataArray[22];
int Red = 1;
int Green = 2;
int Orange = 3;
void setup() {
pinMode(latchPin, OUTPUT);
pinMode(powerPin,OUTPUT);
digitalWrite(powerPin,HIGH);
myarray();
}
void loop(){
for(int i = 0 ; i <= 5000 ; i++){
dotshow(random(1, 9),random(1, 9),random(1, 3));
delay(1);}
for(int c = 1 ; c <= 3 ; c++){
for(int i = 1 ; i <= 8 ; i++){
rowshow(i,c);
delay(100);}
for(int i = 8 ; i >= 1 ; i--){
rowshow(i,c);
delay(100);}
dotshow(0,0,c);
delay(500);
}
for(int c = 1 ; c <= 3 ; c++){
for(int i = 1 ; i <= 8 ; i++){
colshow(i,c);
delay(100);}
for(int i = 8 ; i >= 1 ; i--){
colshow(i,c);
delay(100);}
dotshow(0,0,c);
delay(500);
}
for(int i = 0 ; i <= 30 ; i++){
fourshow(random(1, 3),random(1, 3),random(1, 4));
delay(300);}
}
void dotshow(int myRow,int myCol, int color){
byte dotRow;
byte dotColRed;
byte dotColGreen;
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3649][ch3606][ch3623][ch3649][ch3626][ch3604][ch3591][ch3612][ch3621]
for(int i = 1; i <= 8 ; i++){
if( myRow == i){dotRow = dataArray[8 - i];}}
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3588][ch3629][ch3621][ch3633][ch3617][ch3649][ch3626][ch3604][ch3591][ch3612][ch3621] + [ch3585][ch3635][ch3627][ch3609][ch3604][ch3626][ch3637]
for(int i = 1; i <= 8 ; i++){
if(myCol == i){
if(color == 0){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16];}
if(color == 1){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16-i];}
if(color == 2){ dotColRed =dataArray[16-i] ; dotColGreen =dataArray[16];}
if(color == 3){ dotColRed =dataArray[16-i] ; dotColGreen =dataArray[16-i];}}}
//[ch3649][ch3626][ch3604][ch3591][ch3607][ch3640][ch3585] Dot
if(myRow == 0 && myCol == 0){ dotRow = dataArray[16];
if(color == 1){ dotColRed =dataArray[16] ; dotColGreen =dataArray[17];}
if(color == 2){ dotColRed =dataArray[17] ; dotColGreen =dataArray[16];}
if(color == 3){ dotColRed =dataArray[17] ; dotColGreen =dataArray[17];}}
//[ch3649][ch3626][ch3604][ch3591][ch3612][ch3621]
digitalWrite(latchPin, 0);
shiftOut(dotRow,dotColRed,dotColGreen);
digitalWrite(latchPin, 1);
}
//____________ [ch3649][ch3626][ch3604][ch3591][ch3607][ch3637][ch3656][ch3621][ch3632][ch3649][ch3606][ch3623]
void rowshow(int myRow,int color)
{
byte dotRow;
byte dotColRed;
byte dotColGreen;
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3649][ch3606][ch3623][ch3649][ch3626][ch3604][ch3591][ch3612][ch3621]
for(int i = 1; i <= 8 ; i++){
if( myRow == i){dotRow = dataArray[8 - i];}}
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3626][ch3637]
if(color == 0){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16];}
if(color == 1){ dotColRed =dataArray[16] ; dotColGreen =dataArray[17];}
if(color == 2){ dotColRed =dataArray[17] ; dotColGreen =dataArray[16];}
if(color == 3){ dotColRed =dataArray[17] ; dotColGreen =dataArray[17];}
digitalWrite(latchPin, 0);
shiftOut(dotRow,dotColRed,dotColGreen);
digitalWrite(latchPin, 1);
}
//____________ [ch3649][ch3626][ch3604][ch3591][ch3607][ch3637][ch3656][ch3588][ch3629][ch3621][ch3633][ch3617]
void colshow(int myCol,int color)
{
byte dotColRed;
byte dotColGreen;
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3588][ch3629][ch3621][ch3633][ch3617][ch3649][ch3626][ch3604][ch3591][ch3612][ch3621] + [ch3585][ch3635][ch3627][ch3609][ch3604][ch3626][ch3637]
for(int i = 1; i <= 8 ; i++){
if(myCol == i){
if(color == 0){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16];}
if(color == 1){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16-i];}
if(color == 2){ dotColRed =dataArray[16-i] ; dotColGreen =dataArray[16];}
if(color == 3){ dotColRed =dataArray[16-i] ; dotColGreen =dataArray[16-i];}}}
digitalWrite(latchPin, 0);
shiftOut(dataArray[16],dotColRed,dotColGreen);
digitalWrite(latchPin, 1);
}
//____________ [ch3649][ch3626][ch3604][ch3591] 4x4
void fourshow(int myRow,int myCol, int color)
{
byte dotRow;
byte dotColRed;
byte dotColGreen;
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3649][ch3606][ch3623][ch3649][ch3626][ch3604][ch3591][ch3612][ch3621] [ch3610][ch3609]-[ch3621][ch3656][ch3634][ch3591]
if( myRow == 2){dotRow = dataArray[18];}
if( myRow == 1){dotRow = dataArray[19];}
//[ch3585][ch3635][ch3627][ch3609][ch3604][ch3588][ch3629][ch3621][ch3633][ch3617][ch3649][ch3626][ch3604][ch3591][ch3612][ch3621][ch3588][ch3629][ch3621][ch3633][ch3617] [ch3595][ch3657][ch3634][ch3618]-[ch3586][ch3623][ch3634] + [ch3585][ch3635][ch3627][ch3609][ch3604][ch3626][ch3637]
if(myCol == 1){
if(color == 0){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16];}
if(color == 1){ dotColRed =dataArray[16] ; dotColGreen =dataArray[18];}
if(color == 2){ dotColRed =dataArray[18] ; dotColGreen =dataArray[16];}
if(color == 3){ dotColRed =dataArray[18] ; dotColGreen =dataArray[18];}}
if(myCol == 2){
if(color == 0){ dotColRed =dataArray[16] ; dotColGreen =dataArray[16];}
if(color == 1){ dotColRed =dataArray[19] ; dotColGreen =dataArray[16];}
if(color == 2){ dotColRed =dataArray[16] ; dotColGreen =dataArray[19];}
if(color == 3){ dotColRed =dataArray[19] ; dotColGreen =dataArray[19];}}
digitalWrite(latchPin, 0);
shiftOut(dotRow,dotColRed,dotColGreen);
digitalWrite(latchPin, 1);
}
void shiftOut(byte myDataOut,byte myDataOutRed,byte myDataOutGreen) {
int i=0;
int pinState;
int pinStateRed;
int pinStateGreen;
pinMode(clockPin, OUTPUT);
pinMode(dataPin,OUTPUT);
pinMode(dataPinRed,OUTPUT);
pinMode(dataPinGreen,OUTPUT);
digitalWrite(dataPin, 0);
digitalWrite(dataPinRed, 0);
digitalWrite(dataPinGreen, 0);
digitalWrite(clockPin, 0);
for (i=0; i<=7; i++) {
digitalWrite(clockPin, 0);
if ( myDataOut & (1<<i) ) { pinState= 1; } else {pinState = 0;}
if ( myDataOutRed & (1<<i)) { pinStateRed= 1;} else {pinStateRed= 0;}
if ( myDataOutGreen & (1<<i) ) { pinStateGreen= 1; } else {pinStateGreen=0;}
digitalWrite(dataPin, pinState );
digitalWrite(dataPinRed, pinStateRed);
digitalWrite(dataPinGreen, pinStateGreen);
digitalWrite(clockPin, 1);
digitalWrite(dataPin,0);
digitalWrite(dataPinRed, 0);
digitalWrite(dataPinGreen, 0);
}
digitalWrite(clockPin, 0);
}
void myarray(){
dataArray[0] = 0x80; //10000000
dataArray[1] = 0x40; //01000000
dataArray[2] = 0x20; //00100000
dataArray[3] = 0x10; //00010000
dataArray[4] = 0x08; //00001000
dataArray[5] = 0x04; //00000100
dataArray[6] = 0x02; //00000010
dataArray[7] = 0x01; //00000001
dataArray[8] = 0x7F; //01111111
dataArray[9] = 0xBF; //10111111
dataArray[10] = 0xDF; //11011111
dataArray[11] = 0xEF; //11101111
dataArray[12] = 0xF7; //11110111
dataArray[13] = 0xFB; //11111011
dataArray[14] = 0xFD; //11111101
dataArray[15] = 0xFE; //11111110
dataArray[16] = 0xFF; //11111111
dataArray[17] = 0x00; //00000000
dataArray[18] = 0xF0; //11110000
dataArray[19] = 0x0F; //00001111
}
I come from thailand
My English is not good
:
[ch3655]Hello = " Sa Wat Dee"
Nice to meet you all.
Nice project, and good soldering skills, but you are powering all the 75hc595 from one arduino digital pin, and thats pretty risk, you can(and will) burn your arduino.
GOOD ..... ;D
pretty good!
hi
i am a bit new to shift registers and dot matrix,
can u possibly upload the full shematic so i knw what is connected to what . its a bit hard to determine from photo.
along with what cap you are using.
thanks