Powering a 16x16 led panel

Hi, I bought a 5v 10a power supply, wired it to my led panel. I plugged the arduino into my laptop. I downloaded some code for creating sprite images on my display. I connected the data in to digital pin 3 as addressed in the code. When I tried it, not all the led's came on and it displayed random garbage. Does the arduino board need more power than my laptop can supply to control that many led's? I wired the power supply only to the led panel and was counting on the usb from my laptop to supply the arduino board.

Please post your code. Remember to use code tags </> in the editor.

Please post a picture / diagram / schematic of how everything is wired up.

Can't really help with out these...

Thank you for the fast reply!

Thank you for your help.

Here is the code I used.

/* Arduino 256 RGB LEDs Matrix Animation Frame 
 * Using WS2812 LED Strips
 
Created by Yvan / https://Brainy-Bits.com

This code is in the public domain...

You can: copy it, use it, modify it, share it or just plain ignore it!
Thx!

*/

#include <avr/pgmspace.h>  // Needed to store stuff in Flash using PROGMEM
#include "FastLED.h"       // Fastled library to control the LEDs

// How many leds are connected?
#define NUM_LEDS 256

// Define the Data Pin
#define DATA_PIN 3  // Connected to the data pin of the first LED strip

// Define the array of leds
CRGB leds[NUM_LEDS];

// Create the array of retro arcade characters and store it in Flash memory
const long DigDug01[] PROGMEM =
{
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 
0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x0066cc, 0x000000, 0x0066cc, 0x000000, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 
0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0x000000, 0x0066cc, 0x000000, 0x0066cc, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 
0x000000, 0x000000, 0x000000, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0xff0000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0xff0000, 0xff0000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x0066cc, 0x0066cc, 0xcccccc, 0x000000, 0x000000, 
0x000000, 0xff0000, 0xff0000, 0xff0000, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0x000000, 
0x000000, 0x000000, 0xff0000, 0xff0000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0x0066cc, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000,  
0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0xff0000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 
0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
};

const long DigDug02[] PROGMEM =
{
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 
0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x0066cc, 0x000000, 0x0066cc, 0x000000, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000,  
0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0x000000, 0x0066cc, 0x000000, 0x0066cc, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 
0x000000, 0x000000, 0x000000, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0xff0000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0xff0000, 0xff0000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x0066cc, 0x0066cc, 0xcccccc, 0x000000, 0x000000, 
0x000000, 0xff0000, 0xff0000, 0xff0000, 0x0066cc, 0x0066cc, 0x0066cc, 0x0066cc, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0x000000, 
0x000000, 0x000000, 0xff0000, 0xff0000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0x0066cc, 0x0066cc, 0x0066cc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000,  
0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xcccccc, 0xcccccc, 0xcccccc, 0xcccccc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
};

const long Qbert01[] PROGMEM =
{
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 
0x000000, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xffffcc, 0xffffcc, 0xff0033, 0xffffcc, 0xffffcc, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0xff0033, 0xff6600, 0xff6600, 0xff0033, 0xff0033, 
0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0xff0033, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0xff0033,  
0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 
0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xff6600, 0xff0033, 0xff6600, 0xff0033, 0xff6600, 0xff0033, 0xff0033, 
0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xff0033, 0x000000, 0xff0033, 0xff0033, 0x000033, 0x000033, 0xff6600, 0x000000, 
0x000000, 0xff0033, 0x000033, 0x000033, 0xff0033, 0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 0xff0033, 0xff6600, 0xff6600, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff0033, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0x000000, 0x000000, 0x000000
};

const long Qbert02[] PROGMEM =
{
0x000000, 0x000000, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 
0x000000, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xffffff, 0xffffff, 0xff0033, 0xffffff, 0xffffff, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0xff0033, 0xff6600, 0xff6600, 0xff0033, 0x000000, 
0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0xff6600, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0xff0033, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0xff0033, 
0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 
0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xff6600, 0xff0033, 0xff6600, 0xff0033, 0xff6600, 0xff0033, 0xff0033,
0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff6600, 0xff0033, 0xff0033, 0x000000, 0xff0033, 0xff0033, 0x000000, 0x000000, 0xff6600, 0x000000, 
0x000000, 0xff0033, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0xff0033, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0xff0033, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000, 0xff0033, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0x000000, 0x000000, 0xff0033, 0xff6600, 0xff6600, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 
0x000000, 0x000000, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff0033, 0x000000, 0x000000, 0xff6600, 0xff6600, 0xff6600, 0xff0033, 0x000000, 0x000000, 0x000000
};

const long BombJack01[] PROGMEM =
{
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x0099ff, 0x333366, 0x333366, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 0x0099ff, 0x333366, 0x333366,
0x333366, 0x333366, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x0099ff, 0x0099ff, 0x0099ff, 0xffffff, 0xffffff, 0x0099ff, 0xffffff, 0xffffff, 0x0099ff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x0099ff, 0x0099ff, 0xffffff, 0x000000, 0x0099ff, 0x000000, 0xffffff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x0099ff, 0xffffff, 0x000000, 0x0099ff, 0x000000, 0xffffff, 0x0099ff, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0xffcc99, 0xffcc99, 0xffcc99, 0xffcc99, 0xffcc99, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0xffffff, 0xffcc99, 0xffcc99, 0xffcc99, 0xffcc99, 0xffcc99, 0xffffff, 0x333366, 0x333366, 0x333366, 0x333366,
0x333366, 0x333366, 0x333366, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0x000000, 0xff0000, 0x000000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0x333366, 0x333366, 
0x333366, 0x000000, 0x000000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0x000000, 0x000000, 0x333366, 0x333366, 
0x333366, 0x333366, 0x000000, 0x000000, 0xffffff, 0x0099ff, 0x0099ff, 0x0099ff, 0xffff00, 0x0099ff, 0x0099ff, 0x0099ff, 0xffffff, 0x000000, 0x000000, 0x333366, 
0x333366, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0x333366, 0x333366, 
0x333366, 0x333366, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0x333366,  
0x333366, 0x333366, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xffffff, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x000000, 0x000000, 0x000000, 0x333366, 0x000000, 0x000000, 0x000000, 0x333366, 0x333366, 0x333366, 0x333366
};

const long BombJack02[] PROGMEM =
{
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x0099ff, 0x333366, 0x333366, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 0x0099ff, 0x333366, 0x333366, 
0x333366, 0x333366, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x0099ff, 0x0099ff, 0x0099ff, 0xffffff, 0x000000, 0x0099ff, 0x000000, 0xffffff, 0x0099ff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x0099ff, 0x0099ff, 0xffffff, 0x000000, 0x0099ff, 0x000000, 0xffffff, 0x0099ff, 0x0099ff, 0x333366, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0x000000, 0x000000, 0x333366, 0x0099ff, 0xffffff, 0xffffff, 0xffcc99, 0xffffff, 0xffffff, 0x0099ff, 0x333366, 0x000000, 0x000000, 0x333366,
0x333366, 0x000000, 0x000000, 0xff0000, 0xffcc99, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0xffcc99, 0xff0000, 0x000000, 0x000000, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0xff0000, 0xff0000, 0xffffff, 0xffcc99, 0xffcc99, 0xffcc99, 0xffcc99, 0xffcc99, 0xffffff, 0xff0000, 0xff0000, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xffffff, 0x333366, 0x333366, 0x333366, 
0x333366, 0x333366, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0x000000, 0xff0000, 0x000000, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0x333366, 0x333366, 
0x333366, 0x333366, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0x333366, 0x333366, 
0x333366, 0x333366, 0xffffff, 0xffffff, 0xffffff, 0x0099ff, 0x0099ff, 0x0099ff, 0xffff00, 0x0099ff, 0x0099ff, 0x0099ff, 0xffffff, 0xffffff, 0xffffff, 0x333366,
0x333366, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0x333366, 
0x333366, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xff0000, 0xffffff, 0xffffff, 0xffffff, 0xffffff, 
0x333366, 0x333366, 0x333366, 0xffffff, 0xffffff, 0xff0000, 0xff0000, 0xffffff, 0xff0000, 0xff0000, 0xffffff, 0x333366, 0xffffff, 0xffffff, 0x333366, 0x333366, 
0x333366, 0x333366, 0x333366, 0x333366, 0x333366, 0x000000, 0x000000, 0x000000, 0x333366, 0x000000, 0x000000, 0x000000, 0x333366, 0x333366, 0x333366, 0x333366
};



void setup() { 
FastLED.addLeds<NEOPIXEL,DATA_PIN>(leds, NUM_LEDS);  // Init of the Fastled library
FastLED.setBrightness(15);
}

void loop() { 


// Put Qbert first frame
for(int passtime = 0; passtime < 8; passtime++) { // Display it 8 times

FastLED.clear();
for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = pgm_read_dword(&(Qbert01[i]));  // Read array from Flash
  }

FastLED.show();
delay(500);


// Put Qbert second frame
FastLED.clear();
for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = pgm_read_dword(&(Qbert02[i]));
  }

FastLED.show();
delay(500);

}


// Put DigDug first frame
for(int passtime = 0; passtime < 8; passtime++) {

FastLED.clear();
for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = pgm_read_dword(&(DigDug01[i]));
  }

FastLED.show();
delay(250);


// Put DigDug second frame
FastLED.clear();
for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = pgm_read_dword(&(DigDug02[i]));
  }

FastLED.show();
delay(250);

}


// Put BombJack first frame
for(int passtime = 0; passtime < 8; passtime++) {

FastLED.clear();
for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = pgm_read_dword(&(BombJack01[i]));
  }

FastLED.show();
delay(400);


// Put BombJack second frame
FastLED.clear();
for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = pgm_read_dword(&(BombJack02[i]));
  }

FastLED.show();
delay(400);

}

}

16 X 16 = 256 LEDs
256 X 60mA = 15.36 A

You also need a signal ground between your panel and your Arduino.

I thought maybe my power supply was underpowered. So I did order a 5v 15A power supply that should be here tomorrow. For the signal ground, I am really new to this so this might be a dumb question. Can I just connect the led panel ground to the ground pin on digital?
Thanks again.

There are dumb questions, but that's not one of them :slight_smile:
Yes, you need to complete a circuit to the Arduino so you need the data to a digital pin, which you have, and a ground to one of the Arduino gnd pins.

Your 10A may work fine but it's better to always have power to spare so you don't overtax components.

Thanks again, I will be back tomorrow if I am still stuck.

Come back and post pictures and results either way, so others can learn.
Also please read this post to learn how to properly post code.
After you do please consider editing your previous reply with code tags and formatted code.

Happy Programming!

1 Like

Where did the figure of 60mA come from ?

That's what I've read on here many times.
The datasheet says 16mA per color plus the controller needs some power too. 60mA is a safe number to use from what I understand.
WS2812B.pdf (494.4 KB)

The sketch sets the brightness to 15 (fastled brightness is scaled from 0 to 255), and none of your images has all colors of all LEDs at full brightness simultaneously, so I doubt your current problem is the power supply.

The most obvious problem is the lack of a common ground between the UNO and the LED power supply.

You may need to put a resistor between pin 3 of the UNO and the first LED (Adafruit recommends somewhere from 300 to 500 ohms, so try a 470 ohm if you have one).

Thanks, I did have a resistor in line with the data in to pin 3, but removed it when all the led's weren't lighting up. I plan on putting it back in tomorrow.

I usually calculate on 55 mA per WS2812 according to some datasheet somewhere.

The dark current - not specified on that datasheet - is known to be about or somewhat less than 1 mA, so if it were indeed 16 mA per colour, it would total 49 mA. :sunglasses:

1 Like

Hi,
HAVE YOU GOT THE GND OF THE UNO CONNECTED TO THE GND OF THE DISPLAY?

I only see one wire from UNO to display.
The UNO outputs its signal with respect to the UNO's GND, not the display GND.

You musty have the gnds connected so the display see's the signal from the UNO with respect to the displays GND.

Example, you don't see a lamp lit with one wire, you need a circuit.

Tom.... :smiley: :+1: :coffee: :australia:

Thanks, that ought to save me a few dollars on power supplies for my bigger lighting projects

I did not have the uno board grounded from the display, kind of a rookie mistake. I stopped working on it today and chose to drink beer, but I am allover it tomorrow and will post my results. Thanks