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tiijay
323
app/display/neopixel_64x64.py
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323
app/display/neopixel_64x64.py
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from machine import Pin, RTC
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from neopixel import NeoPixel
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from .fonts.fonts_utils import fonts_meta
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from .fonts.font_5x7 import font_5x7
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from ..utils.colors import RAINBOW, BLACK
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from ..utils.utils import (
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get_german_timestamp_short,
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get_datetime_string,
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get_german_time_ticks,
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get_german_date_ticks,
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)
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import time
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import math
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class NeoPixel_64x64(NeoPixel):
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MATRIX_WIDTH = 64
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MATRIX_HEIGHT = 64
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def __init__(self, pin=28):
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"""
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Initialize LED Display
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Args:
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width: Matrix width in pixels
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height: Matrix height in pixels
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pin: NeoPixel data pin
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"""
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super().__init__(Pin(pin), self.MATRIX_WIDTH * self.MATRIX_HEIGHT)
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# Font configuration
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self.set_font(font_5x7)
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def set_font(self, font):
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"""
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Set the current font for text rendering
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Args:
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font: Font dictionary from fonts_array
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"""
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self.selected_font = font
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self.selected_font_meta = fonts_meta(font)
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self.font_width = self.selected_font_meta['w']
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self.font_height = self.selected_font_meta['h']
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print(f'Font set: width: {self.font_width}; height: {self.font_height}')
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def set_pixel(self, x, y, color):
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"""
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Set a single pixel to the specified color
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Args:
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x: X coordinate
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y: Y coordinate
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color: RGB color tuple
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"""
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index = y * self.MATRIX_WIDTH + x
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if 0 <= x < self.MATRIX_WIDTH and 0 <= y < self.MATRIX_HEIGHT:
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self[index] = color
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def clear(self):
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"""Clear the entire display (turn off all pixels)"""
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for i in range(len(self)):
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self[i] = BLACK
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self.write()
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def clear_row(self, row: int, effect: bool = False) -> None:
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"""
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Clear one row of the display (turn off all pixels)\n
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PRESUMING: font_5x7\n
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rows: range(0,3) [row-height: 8 pixels, row-length: MATRIX_WIDTH(64)]\n
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\n
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row-0: 0 - 511 (Pixel 0 bis Pixel 8 * MATRIX_WIDTH(64)-1)\n
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row-1: 512 - 1023\n
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row-2: 1024 - 1535\n
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row-3: 1536 - 2047\n
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etc. ...
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"""
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start = row * 8 * self.MATRIX_WIDTH
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ende = start + 8 * self.MATRIX_WIDTH - 1
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print(f'clear row: {row} --> pixels {start} to {ende}')
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for i in range(start, ende):
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self[i] = BLACK
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if effect and i % self.MATRIX_WIDTH == 0:
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self.write()
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self.write()
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def draw_letter(self, letter, x, y, color):
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"""
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Draw a single letter using current font
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Args:
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letter: Character to draw
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x: X position
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y: Y position
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color: RGB color tuple
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"""
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if letter in self.selected_font:
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char_data = self.selected_font[letter]
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for row in range(self.font_height):
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row_data = char_data[row]
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for col in range(self.font_width):
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# Check if pixel should be lit (MSB first)
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if row_data & (1 << ((self.font_width - 1) - col)):
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self.set_pixel(x + col, y + row, color)
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else:
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print(f'oops, letter does not exist in the font -> {letter}')
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def draw_text(self, text, x, y, color=RAINBOW[2], spacing=1):
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"""
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Draw text string at specified position
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Args:
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text: String to display
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x: Starting X position
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y: Starting Y position
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color: RGB color tuple
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spacing: Pixels between characters
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"""
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for idx, char in enumerate(text):
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char_x = x + (idx * (self.font_width + spacing))
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self.draw_letter(char, char_x, y, color)
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def show_hello(self):
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"""Display HELLO with timestamp"""
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self.clear()
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# Draw HELLO in rainbow colors
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self.draw_text('HELLO!', 6, 4, RAINBOW[2])
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# Show timestamp
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datetimestr = get_german_timestamp_short()
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self.draw_text(datetimestr, 2, 15, RAINBOW[4])
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self.write()
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def vertical_floating_text(
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self, text, x, color=RAINBOW[0], float_range=3, speed=0.2, duration=10
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):
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"""
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Vertical floating text animation
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Args:
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text: Text to display
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x: X position (fixed)
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color: Text color
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float_range: How many pixels to float up/down
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speed: Animation speed
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duration: How long to run animation in seconds
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"""
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start_time = time.time()
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while time.time() - start_time < duration:
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# Calculate floating offset using sine wave
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offset = math.sin(time.time() * speed) * float_range
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current_y = int(self.MATRIX_HEIGHT // 2 + offset - (len(text) * self.font_height) // 2)
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self.clear()
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# Draw each letter vertically
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for i, char in enumerate(text):
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char_y = current_y + (i * self.font_height)
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# Keep text within matrix bounds
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if 0 <= char_y < self.MATRIX_HEIGHT - self.font_height:
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self.draw_letter(char, x, char_y, color)
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self.write()
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time.sleep(0.05)
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def horizontal_floating_text(
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self, text, y, color=RAINBOW[0], float_range=3, speed=0.2, duration=10
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):
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"""
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Horizontal floating text animation
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Args:
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text: Text to display
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y: Y position (fixed)
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color: Text color
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float_range: How many pixels to float left/right
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speed: Animation speed
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duration: How long to run animation in seconds
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"""
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start_time = time.time()
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text_width = len(text) * (self.font_width + 1)
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counter = 0
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while time.time() - start_time < duration:
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# Calculate floating offset using sine wave
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offset = math.sin(counter) * float_range
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current_x = int(offset) # to right
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self.clear()
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# Draw text at floating position
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for i, char in enumerate(text):
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char_x = current_x + (i * (self.font_width + 1))
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# Keep text within matrix bounds
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if 0 <= char_x < self.MATRIX_WIDTH - self.font_width:
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self.draw_letter(char, char_x, y, color)
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self.write()
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counter += speed
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time.sleep(0.05)
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def rotate_text_left_continuous(self, text, y, color=RAINBOW[0], speed=1.0, duration=10):
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"""
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Continuous left rotation - text wraps around seamlessly
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Args:
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text: Text to display
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y: Y position (fixed)
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color: Text color
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speed: Movement speed
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duration: How long to run animation in seconds
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"""
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start_time = time.time()
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text_width = len(text) * (self.font_width + 1)
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position = 0
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while time.time() - start_time < duration:
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self.clear()
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# Draw text at current position
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for i, char in enumerate(text):
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char_x = int(position + (i * (self.font_width + 1)))
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# Handle wrapping
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if char_x < -self.font_width:
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char_x += self.MATRIX_WIDTH + text_width
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if 0 <= char_x < self.MATRIX_WIDTH:
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self.draw_letter(char, char_x, y, color)
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self.write()
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# Move left and wrap around
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position -= speed
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if position < -text_width:
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position = self.MATRIX_WIDTH
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time.sleep(0.05)
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def draw_rectangle(self, x, y, width, height, color, fill=False):
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"""
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Draw a rectangle
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Args:
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x: Top-left X position
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y: Top-left Y position
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width: Rectangle width
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height: Rectangle height
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color: RGB color tuple
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fill: Whether to fill the rectangle
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"""
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if fill:
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for i in range(height):
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for j in range(width):
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self.set_pixel(x + j, y + i, color)
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else:
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# Top and bottom edges
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for i in range(width):
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self.set_pixel(x + i, y, color)
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self.set_pixel(x + i, y + height - 1, color)
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# Left and right edges
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for i in range(height):
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self.set_pixel(x, y + i, color)
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self.set_pixel(x + width - 1, y + i, color)
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def draw_line(self, x1, y1, x2, y2, color):
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"""
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Draw a line using Bresenham's algorithm
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Args:
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x1, y1: Start coordinates
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x2, y2: End coordinates
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color: RGB color tuple
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"""
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dx = abs(x2 - x1)
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dy = abs(y2 - y1)
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sx = 1 if x1 < x2 else -1
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sy = 1 if y1 < y2 else -1
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err = dx - dy
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while True:
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self.set_pixel(x1, y1, color)
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if x1 == x2 and y1 == y2:
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break
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e2 = 2 * err
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if e2 > -dy:
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err -= dy
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x1 += sx
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if e2 < dx:
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err += dx
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y1 += sy
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# Example usage
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if __name__ == '__main__':
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# Create display instance
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display = NeoPixel_64x64()
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print('LED Matrix Display Initialized')
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print(get_datetime_string())
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print(f'German time: {get_german_time_ticks()}')
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print(f'German date: {get_german_date_ticks()}')
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# Demo various functions
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display.show_hello()
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time.sleep(3)
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display.vertical_floating_text('HELLO', 30, RAINBOW[0], 5, 0.15, 5)
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display.horizontal_floating_text('FLOAT', 28, RAINBOW[1], 10, 0.1, 5)
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display.rotate_text_left_continuous('ROTATE FLOAT', 28, speed=8.0, duration=5)
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# Draw some shapes
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display.clear()
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display.draw_rectangle(5, 5, 10, 10, RAINBOW[0])
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display.draw_rectangle(20, 20, 15, 8, RAINBOW[2], fill=True)
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display.draw_line(0, 0, 63, 63, RAINBOW[4])
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display.write()
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