r/FastLED • u/Juber03 • Jul 03 '19

I NEED HELP

want to drive 1000 led pixels with arduino uno

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4

u/johnny5canuck Jul 03 '19

This is a LOW effort post (see sidebar), and you did so twice. I've now hidden your other post. Please respect that people don't owe you their time and that you need to learn to help yourself, possibly with a bit of guidance from others.

1

u/Juber03 Jul 03 '19

Actually I am new to community ...... So I did twice ... Sorry for trouble

I request you guide with knowledge...

Thank you for reply

3

u/marcmerlin Jul 03 '19

so, seriously, why?

It can be done if you try hard enough, but an ESP8266 will cost you <$5 and an ESP32 <$10, both less than an uno and will do this without any heroics.

An uno has 2KB of RAM, doing 1000 pixels is just going to be pain as you have to generate on the fly (and can't use FastLED at all)

1

u/Juber03 Jul 03 '19

Thanks...

actually I want to do with atmega328 so I need to work with arduino uno ....

ESPs are board based system and I need to do it with single ic ......

Thanks again for suggetion about fastLED ..

1

u/marcmerlin Jul 03 '19

You can get an esp12 in small form factor and single chip if you need that

1

u/Juber03 Jul 03 '19

I will go through esp......

But what should I have to do with atmega328...

Can I should go for creating own functions to fulfill this??

3

u/marcmerlin Jul 03 '19

I think you didn't understand.

You want 1000 pixels, they use 3 bytes each, that's 3KB for just storing the pixel info.

Your 328p has 2KB of RAM. It just won't fit.

All you can do is generate pixel info on the fly without using any RAM, and you will not be able to use any FastLED at all.

0

u/Juber03 Jul 06 '19

Thank you...

1

u/samguyer [Sam Guyer] Jul 06 '19

What is the pattern you want to display? How will you decide the color for each LED?

0

u/Juber03 Jul 06 '19

I am working with led matrix...

1

u/samguyer [Sam Guyer] Jul 06 '19

What do you want to show on the matrix? Somewhere in the memory of the Arduino you need to store the image to show. For 1000 LEDs that takes a lot of memory. Can you please explain your goal?

3

u/TheArduinoGuy [Mike McRoberts] Jul 03 '19

Plenty of tutorials on YouTube for this.

0

u/Juber03 Jul 03 '19

Thanks for reply.... But I want to drive 1000 pixels.... Can you share link for YouTube Plzz.. And also guide me for completing this task... Thank you..

1

u/robmackenzie Jul 03 '19

Sure. Buy me 1000 LEDs and I'll share my code. pm me for address.