Having problems with 16x32 RGB led panel using arduinoin coding or wiring.

Projects Programming
1

Hello I'm having problems with wiring up and setting up the 16x32 RGB panel using a arduino uno board. I tried the adafruit learning link on the panel here. I did get the libraries correct and i tried to figure out the wiring but it looks like I might be wrong. So i searched online and found this wiring setup

it looks like mostly what is on adafruit page so i followed the purple color for Arduino uno and again it didn't work. I also saw the LAT pin is on A3 and in the example sketches it is on D10 So i changed that But nothing happen i tried to recycle the power both on the arduino and panel. I really need help can someone please help me and let me know what Am i going wrong please?

I'm not even sure if it is coding or wiring i really need help. Can someone please help me?

2

I can not add the sketch not eve sure how to upload the sketch

This is the link for where the sketch is at here.

3

Most of the people here won't follow links to code.

Copy-paste your code into your reply. But first read "how to use this forum" to find out how to wrap code tags around your code.

4

Hello MorganS i post many codes in arduino forum but it says it's over the 9000 limit.

EDIT: let me post a small sketch of it.

#include "Adafruit_GFX.h" // Core graphics library
#include "RGBmatrixPanel.h" // Hardware-specific library

#define CLK 8 // MUST be on PORTB!
#define LAT A3
#define OE 9
#define A A0
#define B A1
#define C A2

// Last parameter = 'false' disable double-buffering
RGBmatrixPanel matrix(A, B, C, CLK, LAT, OE, false);

void setup() {
matrix.begin();
}

void loop() {
// fill the screen with red
matrix.fillRect(0, 0, 32, 16, matrix.Color333(7, 0, 0));
delay(1000);

// fill the screen with green
matrix.fillRect(0, 0, 32, 16, matrix.Color333(0, 7, 0));
delay(1000);

// fill the screen with blue
matrix.fillRect(0, 0, 32, 16, matrix.Color333(0, 0, 7));
delay(1000);

// fill the screen with white
matrix.fillRect(0, 0, 32, 16, matrix.Color333(7, 7, 7));
delay(1000);

// fill the screen with black
matrix.fillScreen(matrix.Color333(0, 0, 0));
delay(1000);
}

i just found this online today and should be the same.

5

The full-reply page will let you attach large files.

So this code you posted, what does it do and what do you want it to do different?

6

Hello MorganS that is not my code that is the example one coming from the Adafruit github example page. I can not get it to work. Nothing displays. If i disconnect the ground wires from the panel .I can random flashes of different colors on different panels and that is that. But if everything is wired up Blank nothing comes up on the Panel at all.

plasma_16x32.ino (4.94 KB)

7

How are you powering the panel?

8

5v 3a power adapter.

9

Are you sure you have connected to the input connector?

The Adafruit page lists a couple of different "variant" pin configurations. Have you tried them all?

10

Hello this is my current pin out. Please excuse my drawing I'm not a graphics designer. I just used windows paint

11

i have tried different types of wiring from that site and others I'm not sure if I'm doing it correctly or not.

12

Hello i found my problem one of the pin the LAT pin i was putting to ground and a ground pin i was putting to D10 so it was messing with the arduino and now it works.