Hey all so Im building an 8x10 matrix where I have all my columns running to a shift register and the rows to a decade counter. I am trying to use a joystick where if i push it down it will light up the leds and they will stay on. I can only get one led to turn on at a time and didn’t know if there was a workaround for this.
#include <TimedAction.h>
//shit register pins
int latchpin = 4;
int clockpin = 3;
int datapin = 2;
//decade counter pins
int clock = 13;
int Reset = 12;
//josstick x and y
int joyPinx = 0;
int joyPiny = 1;
int pushButton = 7;
//my x and y coordinates
int coordX = 0;
int coordY = 0;
//when the joystick isnt pressed this is the center
int centerX = 500;
int centerY = 500;
int clockPosition = 0;
int i = 0;
int j;
int lastbitused = 0;
int newbits;
/*TimedAction upAction = TimedAction(200, xUp);
TimedAction leftAction = TimedAction(200, yLeft);
TimedAction rightAction = TimedAction(200, yRight);
TimedAction downAction = TimedAction(200, xDown);
TimedAction moveAction = TimedAction(200, moveball);
*/
void setup()
{
pinMode(latchpin, OUTPUT);
pinMode(clockpin, OUTPUT);
pinMode(datapin, OUTPUT);
pinMode(clock,OUTPUT);
pinMode(Reset,OUTPUT);
pinMode(pushButton, INPUT);
digitalWrite(Reset,HIGH);
delayMicroseconds(5);
digitalWrite(Reset,LOW);
Serial.begin(9600);
}
void loop()
{
coordX = analogRead(joyPinx);
coordY = analogRead(joyPiny);
int bits = (pow(2,i)+1);
/*
upAction.check();
leftAction.check();
rightAction.check();
downAction.check();
moveAction.check();
*/
//move up
if(coordX < 200){
delay(100);
Serial.println(clockPosition);
digitalWrite(Reset,HIGH);
delayMicroseconds(5);
digitalWrite(Reset,LOW);
//first I reset the clock then I run this for loop until the clock position in move up is met -1 which will put
//the led right before the one selected to simulate how to move up
for(j = 0; j <clockPosition-1; j++){
digitalWrite(clock, HIGH);
digitalWrite(clock,LOW);
}
clockPosition--;
j == 0;
}
if(coordX > 900){
delay(100);
digitalWrite(clock, HIGH);
digitalWrite(clock,LOW);
clockPosition++;
}
//move left
if(coordY > 900){
delay(100);
digitalWrite(latchpin, LOW);
shiftOut(datapin, clockpin, MSBFIRST,bits);
digitalWrite(latchpin, HIGH);
i++;
lastbitused++;
Serial.println(lastbitused);
}
//move right
if(coordY < 200){
delay(100);
newbits = bits/2;
digitalWrite(latchpin, LOW);
shiftOut(datapin, clockpin, MSBFIRST, newbits);
digitalWrite(latchpin, HIGH);
i--;
}
}
void xUp(){
}
void xDown(){
}
void yLeft(){
}
void yRight(){
}
void moveball(){
int Button = digitalRead(pushButton);
if(Button == LOW){
digitalWrite(latchpin, LOW);
shiftOut(datapin, clockpin, MSBFIRST,1);
digitalWrite(latchpin, HIGH);
delay(500);
digitalWrite(clock,HIGH);
delayMicroseconds(5);
digitalWrite(clock,LOW);
}
As of right now my code lets me move a single led in all directions but i want to be able to keep certain leds on. My end goal is to be able to draw a box. I also wasn’t sure how to make the decade counter count backwards so i had to hard code the move up by giving the illusion to the led is moving up even though it is just resetting every time. I also want to be able to eventually be able to draw a box then push a button and have a ball bounce around the screen and bounce off the box. Any help will do Iv’e been working at this for way to long.
I used 82 ohm resistors going to the shift register and 1k going to the decade counter and the lights turn on bright also
Here is my schematic http://www.instructables.com/files/orig … CAMAAN.bmp
