Chain errors after 128 pixels about pixelcontroller HOT 14 CLOSED

Well I suppose you use the PixelInvaders firmware, right? Which version?

How many panels do you have? Are you sure your power distribution is correct and your Arduino has enough of memory?

from pixelcontroller.

I have 4 panels running 128 pixels each im using an arduino UNO with 32KB memory. Im injecting power down the line with the ground in 1 chain.

Yes running pixelinvaders firmware... I've been trying pretty much every version... What JDK do i need? Should i abandon the aduino UNO as a controller? Ive seen youve had latency issues with it and that might explain the serial data errors...

from pixelcontroller.

I tested repeatedly tonight and was only able to get it working displaying wrong colors when i set it to 128 pixels and 4 panels. When i set it to 32 pixels and 16 panels it displays up to 128 pixels and the rest of the chain does not work and is static, this is on veriosn 1.10 and 1.20 the 1.3 version is incredibly slow and giving me invalid serial data errors.

from pixelcontroller.

Take a look at the firmware file:

// ======= START OF USER CONFIGURATION =======

//define nr of Panels*2 here, 4 means 2 panels
#define NR_OF_PANELS 4

// ======= END OF USER CONFIGURATION =======

#define PIXELS_PER_PANEL 32

leave PIXELS_PER_PANEL untouched, just change NR_OF_PIXELS.

Its tested for 384 pixels and working

from pixelcontroller.

I have 4 panels running 128 pixels each im using an arduino UNO with 32KB memory. Im injecting power down the line with the ground in 1 chain.

A PixelInvaders Panel is per definition 8x8, thus contains 64 pixel modules.

An Arduino UNO is not recommended due serial latency AND an Arduino UNO does not have 32kb memory, but 2kb.

so use another firmware (maybe tpm2.net) or you need to change the firmware yourself...

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What is suggested for a microcontoller to use?

im not sure what you mean by this..

"so use another firmware (maybe tpm2.net) or you need to change the firmware yourself..."

the tpm2.net will work with arduino?

from pixelcontroller.

Take a look at http://pixelinvaders.ch/?page_id=208

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im about to order a teensy 2.0++ would this be the best microcontroller for this? how much ram is required for my application?

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the tpm2.net fireware wil that work with the teensy?

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got it working with teensy.. how many pixels will pixelcontroller support?

from pixelcontroller.

The limit is the controller, not PixelController. It depends a) how fast data can be sent to the controller and b) how much memory the controller needs (and have).

from pixelcontroller.

Hi Neophob, great work so easy to follow.

I am trying to programme a wall of RGB LED's 300 pixels in total. My RGBs come in strands of 50. In order to use your code I have been making 8x8 matrices.
Can you help me in changing my grid size from 8x8 to a custom option. I want to make multiple panels of differing size, so for example one panel of 15x1 and another panel 20x1 in the same setup.
Thanks very much
Josuftim

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Hey Josuftim
Please dont mix issues, this ticket is already closed - next time create an new issue.

Anyway PixelInvaders panels are always 8x8 per definition. if you want to use another resolution use another protocol like the tpm2.

from pixelcontroller.

Dear Neophob,

I am sorry about my mistake in uploading my query on a closed issue. I am new to github and its etiquette. Thank you very much for your speedy reply. Really impressed by the softwares capabilities. Keep up the inspiring work.

Yours gratefully

Joseph Timoney

From: Michael Vogt [mailto:[email protected]]
Sent: 05 August 2013 12:12
To: neophob/PixelController
Cc: Josuftim
Subject: Re: [PixelController] Chain errors after 128 pixels (#34)

Hey Josuftim
Please dont mix issues, this ticket is already closed - next time create an new issue.

Anyway PixelInvaders panels are always 8x8 per definition. if you want to use another resolution use another protocol like the tpm2.

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