This commit is contained in:
Christoph Haas 2025-11-18 22:40:58 +01:00
commit 9bd764579a
5 changed files with 123 additions and 0 deletions

0
lib/__init__.py Normal file
View file

24
lib/display.py Normal file
View file

@ -0,0 +1,24 @@
from rgbmatrix import RGBMatrix, RGBMatrixOptions
# Das Bild nur speichern. Nicht die LED-Matrix ansteuern.
DEV = True
if not DEV:
options = RGBMatrixOptions()
options.rows = 64
options.cols = 64
options.chain_length = 2
options.parallel = 1
options.hardware_mapping = 'regular' # change if using Adafruit HAT, e.g. 'adafruit-hat'
options.gpio_slowdown = 4 # try 2, 4, or even 5
options.disable_hardware_pulsing = True
matrix = RGBMatrix(options=options)
matrix_width = 64 * options.chain_length
matrix_height = 64
def do(image):
if DEV:
image.save('image.png')
else:
matrix.SetImage(image)

68
main.py Executable file
View file

@ -0,0 +1,68 @@
#!/usr/bin/env python3
from flask import Flask, jsonify
from threading import Thread, Event
from time import sleep
import importlib
import os
from PIL import Image
SCENES_DIR = 'scenes'
scenes = {}
for file in os.listdir(SCENES_DIR):
if file.endswith(".py") and file != "__init__.py":
module_name = file[:-3]
module = importlib.import_module(f"{SCENES_DIR}.{module_name}")
scenes[module_name] = module
app = Flask(__name__)
# Thread and control event
animation_thread = None
stop_event = Event()
image_buffer = Image.new("RGB", (128, 64))
# Example background animation function
def run_animation(name):
print(f"Starting animation: {name}")
t = 0
while not stop_event.is_set():
# This is where you'd update your LED matrix or PIL image
print(f"[{name}] Frame {t}")
t += 1
sleep(0.2) # 5 FPS
print(f"Animation {name} stopped")
# Utility to start a new animation
def start_animation(scene_name):
global animation_thread, stop_event
if scene_name not in scenes:
print(f"Scene '{scene_name}' not found!")
return
# Stop previous thread
if animation_thread and animation_thread.is_alive():
stop_event.set()
animation_thread.join()
# Reset stop event and start new thread
stop_event.clear()
animation_thread = Thread(target=scenes[scene_name].start, args=(image_buffer, stop_event), daemon=True)
animation_thread.start()
@app.route("/start/<animation_name>")
def start(animation_name):
start_animation(animation_name)
return jsonify({"status": "started", "animation": animation_name})
@app.route("/stop")
def stop():
global animation_thread, stop_event
if animation_thread and animation_thread.is_alive():
stop_event.set()
animation_thread.join()
return jsonify({"status": "stopped"})
if __name__ == "__main__":
app.run(debug=True, port=6000)

0
scenes/__init__.py Normal file
View file

31
scenes/helloworld.py Normal file
View file

@ -0,0 +1,31 @@
#!/usr/bin/env python3
import io
from time import sleep
from PIL import Image, ImageDraw, ImageFont
from lib import display
# TODO: Derive from number of panels and panel size
matrix_height = 64
matrix_width = 64 * 2
# Load a font (use a TTF font file of your choice)
try:
font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 12)
except IOError:
font = ImageFont.load_default()
def start(image_buffer, stop_event, text="Hello World!"):
t = 0
while not stop_event.is_set():
image_buffer = Image.new("RGB", (128, 64))
draw = ImageDraw.Draw(image_buffer)
draw.text((0, 0), f"Hello World {t}", fill=(255, 255, 255), font=font)
t += 1
print(t)
#image_buffer.save('image.png')
display.do(image_buffer)
sleep(0.2)