many works
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9bd764579a
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7 changed files with 151 additions and 36 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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**pyc
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19
README
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19
README
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verschiedene threads zur auswahl, die vom flask gestartet/gestoppt werden können.
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- statisches bild anzeigen und sich beenden
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-
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ein task, der die ganze zeit im hintergrund läuft.
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- statisches bild anzeigen
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- eine Routine
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ein globales bild. (locking?)
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die einzelnen
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https://github.com/hzeller/rpi-rgb-led-matrix
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./main.py
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curl http://localhost:6000/start/helloworld
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feh --reload 0.15 image.png
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https://pypi.org/project/finnhub-python/
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@ -1,24 +1,51 @@
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from rgbmatrix import RGBMatrix, RGBMatrixOptions
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from PIL import ImageFont, Image
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# Das Bild nur speichern. Nicht die LED-Matrix ansteuern.
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DEV = True
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DEV = False
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#DEV = True
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if not DEV:
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matrix = None
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MATRIX_HEIGHT = 64
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MATRIX_WIDTH = 64
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NUMBER_OF_PANELS = 4
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class MyMatrix:
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def __init__(self):
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#self.matrix_width = options.cols * options.chain_length
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#self.matrix_height = options.rows
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try:
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self.font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-ExtraLight.ttf", 18)
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except IOError:
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self.font = ImageFont.load_default()
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if not DEV:
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options = RGBMatrixOptions()
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options.rows = 64
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options.cols = 64
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options.chain_length = 2
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options.rows = MATRIX_HEIGHT
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options.cols = MATRIX_WIDTH
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options.chain_length = NUMBER_OF_PANELS
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options.parallel = 1
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options.hardware_mapping = 'regular' # change if using Adafruit HAT, e.g. 'adafruit-hat'
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options.gpio_slowdown = 4 # try 2, 4, or even 5
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options.gpio_slowdown = 5 # try 2, 4, or even 5
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options.disable_hardware_pulsing = True
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options.drop_privileges = False
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matrix = RGBMatrix(options=options)
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matrix_width = 64 * options.chain_length
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matrix_height = 64
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self.matrix = RGBMatrix(options=options)
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def do(image):
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def show(self, image):
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"""Save the image to disk in DEV mode. Or send it to the LED matrix panel."""
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if DEV:
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image.save('image.png')
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elif matrix:
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self.matrix.SetImage(image)
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else:
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matrix.SetImage(image)
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print("Not in dev mode. And matrix not initialized.")
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def buffer(self):
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"""Get an image buffer with the right dimensions"""
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return Image.new("RGB", (MATRIX_WIDTH * NUMBER_OF_PANELS, MATRIX_HEIGHT))
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matrix = MyMatrix()
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24
lib/helpers.py
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24
lib/helpers.py
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def triangle(image_draw, offset_x, offset_y, direction, width, height):
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"""Show triangle. Direction is -1 (down) or 1 (up)."""
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points = []
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color = None
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if direction==1:
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points = [
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(width/2, 0), # n
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(0, height), # sw
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(width, height) # se
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]
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color = (0, 255, 0) # green
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else:
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points = [
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(width/2, height), # s
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(0, 0), # nw
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(width,0) # ne
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]
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color = (255, 0, 0) # red
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# Draw a filled green triangle
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points = [(x+offset_x, y+offset_y) for (x,y) in points]
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image_draw.polygon(points, fill=color)
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6
main.py
6
main.py
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@ -6,6 +6,8 @@ from time import sleep
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import importlib
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import os
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from PIL import Image
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#from lib.display import show
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import lib.display
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SCENES_DIR = 'scenes'
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scenes = {}
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@ -48,7 +50,8 @@ def start_animation(scene_name):
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# Reset stop event and start new thread
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stop_event.clear()
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animation_thread = Thread(target=scenes[scene_name].start, args=(image_buffer, stop_event), daemon=True)
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#animation_thread = Thread(target=scenes[scene_name].start, args=(image_buffer, stop_event), daemon=True)
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animation_thread = Thread(target=scenes[scene_name].start, args=(stop_event,), daemon=True)
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animation_thread.start()
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@app.route("/start/<animation_name>")
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@ -66,3 +69,4 @@ def stop():
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if __name__ == "__main__":
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app.run(debug=True, port=6000)
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47
scenes/bitcoin.py
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47
scenes/bitcoin.py
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#!/usr/bin/env python3
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import time
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from PIL import Image, ImageDraw
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from lib import display
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# Replace with your free Finnhub API key
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API_KEY = "d3t8099r01qigeg1s7cgd3t8099r01qigeg1s7d0"
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import finnhub
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finnhub_client = finnhub.Client(api_key="d3t8099r01qigeg1s7cgd3t8099r01qigeg1s7d0")
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def get_bitcoin_price():
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symbol = "BINANCE:BTCEUR"
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data = finnhub_client.quote(symbol)
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return data['c']
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def start(image_buffer, stop_event, text="Hello World!"):
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last_price = None
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trend = None
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while not stop_event.is_set():
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image_buffer = Image.new("RGB", (128, 64))
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draw = ImageDraw.Draw(image_buffer)
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price = get_bitcoin_price()
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# Trend berechnen
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if last_price:
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if price > last_price:
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trend = 1
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elif price < last_price:
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trend = -1
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display.triangle(draw, 0, 0, trend, width=16, height=32)
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text = f"BTC: {price:.0f}€"
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draw.text((20, 0), text, fill=(255, 255, 255), font=display.font)
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display.do(image_buffer)
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last_price = price
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# Alle 10 Sekunden einen neuen Kurs holen. Jede Sekunde auf "stop" horchen.
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for i in range(1,10):
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if stop_event.is_set():
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return
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time.sleep(1)
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import io
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from time import sleep
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from PIL import Image, ImageDraw, ImageFont
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from lib import display
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#from lib import display
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import lib.display
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# TODO: Derive from number of panels and panel size
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matrix_height = 64
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matrix_width = 64 * 2
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# Load a font (use a TTF font file of your choice)
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try:
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font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 12)
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except IOError:
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font = ImageFont.load_default()
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def start(image_buffer, stop_event, text="Hello World!"):
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def start(stop_event, text="Hello World!"):
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t = 0
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while not stop_event.is_set():
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image_buffer = Image.new("RGB", (128, 64))
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#image_buffer = Image.new("RGB", (lib.display.matrix_width, lib.display.matrix_height))
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image_buffer = lib.display.matrix.buffer()
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draw = ImageDraw.Draw(image_buffer)
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draw.text((0, 0), f"Hello World {t}", fill=(255, 255, 255), font=font)
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draw.text((0, 0), f"Hello World {t}", fill=(255, 255, 255), font=lib.display.matrix.font)
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t += 1
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print(t)
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#image_buffer.save('image.png')
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display.do(image_buffer)
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lib.display.matrix.show(image_buffer)
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#sleep(0.2)
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sleep(0.2)
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