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126 lines
2.9 KiB
C++
126 lines
2.9 KiB
C++
/*
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* Low level code for cube led 8x8x8
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* By Gnieark https://blog-du-grouik.tinad.fr February 2016
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* GNU GPL V2
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*/
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#define pinOE 11
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boolean cube[8][8][8];
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const int layersPins[]={A0,A1,A2,A3,A4,A5,12,13};
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const int busPins[]={0,1,2,3,4,5,6,7};
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// IC Pins are "hard coded". here just for info,
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const int ICPins[]={8,9,10};
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// If you change IC pin configuration,
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// You'll have to modify const ICtable[9]
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//see SN74HC138 specs
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//http://www.ti.com/lit/ds/symlink/sn54hc138.pdf page 2
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const byte ICtable[9]={
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B00000000,
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B00000001,
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B00000010,
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B00000011,
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B00000100,
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B00000101,
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B00000110,
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B00000111,
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B00000000 //une façon de boucler sur 0
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};
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void writeCube(int tdelay){
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static int currentLayer=0;
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unsigned long startedAt = millis();
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while(millis() - startedAt < tdelay){
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delay(1);// wait a bit on previous layer
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digitalWrite(layersPins[currentLayer],LOW);//turn off current Layer
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//change currentLayer
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if(currentLayer == 8)
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currentLayer=0;
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else
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currentLayer++;
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digitalWrite(pinOE, HIGH);//Output Enabled off
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//lines
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PORTB=ICtable[0];//set IC
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for(int ligne=0;ligne < 8; ligne++){
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//write BUS for this leds'line
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for (int led=0;led <8;led++){
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digitalWrite(busPins[led], cube[currentLayer][ligne][led]);
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}
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PORTB=ICtable[ligne +1]; //74HC574 is writen when clock pin goes LOW to HIGH. SO go to the next value for IC.
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}
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//OE ON
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digitalWrite(pinOE, LOW);
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//layer on
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digitalWrite(layersPins[currentLayer],HIGH);
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}
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}
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void fillCube(){
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for (int i=0;i<8;i++){
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for(int j=0;j<8;j++){
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for(int k=0;k<8;k++){
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cube[i][j][k]=true;
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}
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}
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}
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}
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void lowCube(){
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for (int i=0;i<8;i++){
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for(int j=0;j<8;j++){
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for(int k=0;k<8;k++){
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cube[i][j][k]=false;
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}
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}
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}
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}
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void setup(){
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for(int pin=0; pin<8; pin++){
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pinMode(layersPins[pin], OUTPUT);
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pinMode(busPins[pin], OUTPUT);
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}
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for(int pin=0;pin<3;pin++){
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pinMode(ICPins[pin],OUTPUT);
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}
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pinMode(pinOE, OUTPUT);
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digitalWrite(pinOE, LOW);
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lowCube();
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}
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void loop(){
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//remplir tout le layer haut
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for(int i=0;i<8;i++){
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for(int j=0;j<8;j++){
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cube[7][i][j]=true;
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}
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}
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writeCube(1000);
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//descendre les leds 1 par une
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for(int i=0;i<8;i++){
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for(int j=0;j<8;j++){
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for(int layer=7; layer >0; layer--){
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cube[layer][i][j]=false;
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cube[layer -1][i][j]=true;
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writeCube(15);
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}
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}
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}
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//monter
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for(int i=7;i>=0;i--){
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for(int j=7;j>=0;j--){
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for(int layer=0; layer <7; layer++){
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cube[layer][i][j]=false;
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cube[layer +1][i][j]=true;
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writeCube(15);
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}
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}
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}
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}
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