Still image on 16x32 LED matrix for RPi

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thaweatherman
 
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Joined: Mon Feb 09, 2015 11:24 pm

Still image on 16x32 LED matrix for RPi

Post by thaweatherman »

Hey all,

Is there example code anywhere for just having a still image printed out to the LED matrix? The scrolling is nice but I currently just want the image to stay still. Any help would be great.

Thanks!

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ethur
 
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Joined: Sat Jan 10, 2015 8:51 pm

Re: Still image on 16x32 LED matrix for RPi

Post by ethur »

I'd recommend starting with Step 6 in the Adafruit RGB HAT tutorial to install the Python Imaging Library. Once that is done, displaying a static image is as easy as:

import Image
import ImageDraw
import time
from rgbmatrix import Adafruit_RGBmatrix

# Rows and chain length are both required parameters:
matrix = Adafruit_RGBmatrix(16, 1)

# yourimage.png could be any PIL supported format with 16x32 pixel dimensions
image = Image.open("yourimage.png")
image.load()
matrix.SetImage(image.im.id, 0, 0)
time.sleep(10)

matrix.Clear()

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thaweatherman
 
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Joined: Mon Feb 09, 2015 11:24 pm

Re: Still image on 16x32 LED matrix for RPi

Post by thaweatherman »

Hey thanks for the reply.

It seems whenever I get to creating the matrix in your code the Pi disconnects itself and the matrix displays random pixels. Do you know why that would be?

Thanks

Edit: scratch that it doesnt work at all even with the provided examples. However the one from here: https://learn.adafruit.com/connecting-a ... pi/testing works with the demos.

Every time it craps out with the new adafruit library it says this: Result: 0xCF33070 v 0xCF33070

I am using the RPi B

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JonTorbitt
 
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Joined: Thu Sep 08, 2016 4:48 pm

Re: Still image on 16x32 LED matrix for RPi

Post by JonTorbitt »

I'm getting this exact same error message - any ideas? AM running up to date everything and standard clock speeds as far as I know - have not changed anything

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satre
 
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Joined: Tue Jul 11, 2017 9:18 pm

Re: Still image on 16x32 LED matrix for RPi

Post by satre »

The code above works perfectly for me, but I'm wondering, is there a way to make the image fade in over a second or so, stay for a bit, and then fade out?

Thanks!
Satre

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