hey guys, new to the forum but been lurking around here a while. I'm not sure if this is the right place to ask, but any help would be appreciated
I'm trying to make my own 3 dimensional POV display, much like the one pictured here: Arduino Forum
My project is a little less polished though, and I have a couple problems that i've been trying to puzzle out, but cant seem to get working. I am currently using a DC motor powered by 4 nine-volt batteries in a series-parallel setup to deliver 18V at twice the current. The motor is rated at 18V so this is not a problem, but as I am using batteries the motor slows down quickly as it drains the batteries, and it doesnt spin at a constant RPM. I'm not sure how to fix this, though a friend said using an AC to DC power supply might help. so far the only ones i've been able to find are for laptops though.
The second problem is somewhat related to the first. I think i'm in over my head a little bit on the programming side, and I'm having trouble figuring out how to display anything. i got a cylinder working on the display, but that was just lighting the outside and inside LEDS and turning on the motor. For anyone whos wondering, I have five rows of 8 LEDS each controlled with a matrix set up.
Again, any help would be appreciated. I've included below some code that I was trying to make look like what you see here: 3D FAN.mp4 - YouTube
int c1 = 0;
int c2 = 1;
int c3 = 2;
int c4 = 3;
int c5 = 4;
int c6 = 5;
int c7 = 6;
int c8 = 7;
int r1 = 8;
int r2 = 9;
int r3 = 10;
int r4 = 11;
int r5 = 12;
void setup() {
pinMode(c1, OUTPUT);
pinMode(c2, OUTPUT);
pinMode(c3, OUTPUT);
pinMode(c3, OUTPUT);
pinMode(c4, OUTPUT);
pinMode(c5, OUTPUT);
pinMode(c6, OUTPUT);
pinMode(c7, OUTPUT);
pinMode(c8, OUTPUT);
pinMode(r1, OUTPUT);
pinMode(r2, OUTPUT);
pinMode(r3, OUTPUT);
pinMode(r4, OUTPUT);
pinMode(r5, OUTPUT);
}
void loop() {
digitalWrite(c1, HIGH);
digitalWrite(c2, HIGH);
digitalWrite(c3, HIGH);
digitalWrite(c4, HIGH);
digitalWrite(c5, HIGH);
digitalWrite(c6, HIGH);
digitalWrite(c7, HIGH);
digitalWrite(c8, HIGH);
digitalWrite(r1, LOW);
digitalWrite(r2, LOW);
digitalWrite(r3, LOW);
digitalWrite(r4, LOW);
digitalWrite(r5, LOW);
delayMicroseconds(50);
digitalWrite(c1, HIGH);
digitalWrite(c2, HIGH);
digitalWrite(c3, LOW);
digitalWrite(c4, LOW);
digitalWrite(c5, LOW);
digitalWrite(c6, LOW);
digitalWrite(c7, HIGH);
digitalWrite(c8, HIGH);
digitalWrite(r1, LOW);
digitalWrite(r2, LOW);
digitalWrite(r3, LOW);
digitalWrite(r4, LOW);
digitalWrite(r5, LOW);
delay(20);
digitalWrite(c1, HIGH);
digitalWrite(c2, HIGH);
digitalWrite(c3, HIGH);
digitalWrite(c4, HIGH);
digitalWrite(c5, HIGH);
digitalWrite(c6, HIGH);
digitalWrite(c7, HIGH);
digitalWrite(c8, HIGH);
digitalWrite(r1, LOW);
digitalWrite(r2, LOW);
digitalWrite(r3, LOW);
digitalWrite(r4, LOW);
digitalWrite(r5, LOW);
delayMicroseconds(50);
digitalWrite(c1, LOW);
digitalWrite(c2, LOW);
digitalWrite(c3, LOW);
digitalWrite(c4, LOW);
digitalWrite(c5, LOW);
digitalWrite(c6, LOW);
digitalWrite(c7, LOW);
digitalWrite(c8, LOW);
digitalWrite(r1, LOW);
digitalWrite(r2, LOW);
digitalWrite(r3, LOW);
digitalWrite(r4, LOW);
digitalWrite(r5, LOW);
delay(35);
}
