I just finished building my LED matrix using WS2812 strips. My matrix is 7x55.

Scott_Peterson · September 27, 2017, 7:06pm

I just finished building my LED matrix using WS2812 strips. My matrix is 7x55. I laid it out with pixel 0 in the upper left corner and going left to right It is set up in a serpentine fashion. 0-54 on row 1 then 109-55 on the second row. The LED strip has arrows pointing in one direction which I assumed meant that it shows which way the data flows. I made sure I alternated that arrow with each row when building the matrix.

I am having issues with sample code working correctly. What is odd is that the code seemed to work correctly when I had tested it with less rows, but now it doesn’t seem to work right with my full 7 rows. I even went back into the code and set it back to 2 rows and it still isn’t lining up correctly.

The first bit of code I set up was +Jason Coon’s code. I used a modified version of ESP9266 webserver - ultim 8x8 code. I removed all references to the 3D samples for the cube.

My version is located here:

github.com

Clanggedin/ESP8266-Webmatrix/blob/master/esp8266-fastled-webserver.ino

/*
   ESP8266 + FastLED + IR Remote: https://github.com/jasoncoon/esp8266-fastled-webserver
   Copyright (C) 2015-2016 Jason Coon

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#define FASTLED_INTERRUPT_RETRY_COUNT 0
#include "FastLED.h"
FASTLED_USING_NAMESPACE

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Here is what it looks like when I run the Vertical Palette script which isn’t very vertical.

Any suggestions on what I accidentally screwed up?

Matt_Richard · September 27, 2017, 7:35pm

Try changing MatrixSerpentineLayout to false.

Scott_Peterson · September 27, 2017, 8:56pm

I figured it out… I spent way too much time on this and my brain was melting… It’s always something simple. I had to switch my MaxtrixWidth with my MatrixHeight and that fixed it.

rick_rangel · September 28, 2017, 1:11am

What are you using for power?

Scott_Peterson · September 28, 2017, 2:54pm

@rick_rangel I am using a 26800mAH battery that caps at 5.5A. I keep the brightness down very low.

rick_rangel · October 5, 2017, 8:59pm

Thanks Scott. Is it the RAVPower?

Scott_Peterson · October 5, 2017, 9:05pm

@rick_rangel Yes. The RavPower.