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RGB LED 32X32 Matrix Panel no light at all, bonnet, Raspberr
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RGB LED 32X32 Matrix Panel no light at all, bonnet, Raspberr

by sleepyMagus on Mon Mar 23, 2020 11:53 pm

I am new to working with the adafruit LED matrix panel for a school project. I cannot get the matrix panel to light up at all.
Setup - Raspberry Pi B+, Adafruit RGB LED 32 X 32 Matrix Panel, and Adafruit Matrix Bonnet

Connections and drivers were followed from this page - https://learn.adafruit.com/adafruit-rgb ... g-matrices
software options selected - Adafruit RGB Matrix Bonnet, convenience option

when I try to run any of the examples in /rpi-rgb-led-matrix/examples-api-use such as:

sudo ./demo -D0 --led-rows=32 --led-cols=16
sudo ./demo -D 1 runtext.ppm

The code seems to run without any errors in my terminal but the there is no response from the LED

Pictures of my hardware and connections are attached.

Please advise what I am doing wrong or missing.


IMG_2089.jpeg
IMG_2089.jpeg (102.41 KiB) Viewed 47 times

IMG_2091.jpeg
IMG_2091.jpeg (223.57 KiB) Viewed 47 times

IMG_2093.jpeg
IMG_2093.jpeg (236.83 KiB) Viewed 47 times

sleepyMagus
 
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Re: RGB LED 32X32 Matrix Panel no light at all, bonnet, Rasp

by adafruit_support_mike on Tue Mar 24, 2020 2:29 am

What are you using as a power source for the LED matrix?

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Re: RGB LED 32X32 Matrix Panel no light at all, bonnet, Rasp

by sleepyMagus on Tue Mar 24, 2020 8:01 pm

The bonnet is using an adapter with the following specs:
Input: 100-240V~ 50/60Hz 2.0A
Output: 5V --- 10A
The matrix is connected to the bonnet with the cables in the images.

The monitor is powered by an AC/DC adapter
Input: 100-240VAC 50/60Hz
Output: 12V --- 2A
The Pi is powered by this through the usb cable

Some things I noticed:
- one row of lights at the edge flashed weakly one time at the very start of the runtext.ppm example
- when I am running an example, the current example flashes brightly one time whenever I pull the power out of the bonnet or whenever I plug it back in but the lights remain dark otherwise

sleepyMagus
 
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Re: RGB LED 32X32 Matrix Panel no light at all, bonnet, Rasp

by sleepyMagus on Wed Mar 25, 2020 10:42 pm

light flashing weakly at start of runtext.ppm example: https://media.giphy.com/media/ie8G7eUfs5LoWLuEjI/giphy.gif

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Posts: 3
Joined: Mon Mar 23, 2020 10:57 pm

Please be positive and constructive with your questions and comments.