kopia lustrzana https://github.com/russhughes/st7789py_mpy
m5stack atoms3 examples
rodzic
ca9127351c
commit
c7a42b61dc
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"""
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feathers.py
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Smoothly scroll mirrored rainbow colored random curves across the display.
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"""
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import random
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import math
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import utime
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from machine import Pin, SPI
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import st7789py as st7789
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def between(left, right, along):
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"""returns a point along the curve from left to right"""
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dist = (1 - math.cos(along * math.pi)) / 2
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return left * (1 - dist) + right * dist
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def color_wheel(position):
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"""returns a 565 color from the given position of the color wheel"""
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position = (255 - position) % 255
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if position < 85:
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return st7789.color565(255 - position * 3, 0, position * 3)
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if position < 170:
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position -= 85
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return st7789.color565(0, position * 3, 255 - position * 3)
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position -= 170
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return st7789.color565(position * 3, 255 - position * 3, 0)
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def main():
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'''
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The big show!
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'''
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#enable display and clear screen
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spi = SPI(2, baudrate=40000000, sck=Pin(17), mosi=Pin(21), miso=None)
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tft = st7789.ST7789(
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spi,
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128,
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128,
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reset=Pin(34, Pin.OUT),
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cs=Pin(15, Pin.OUT),
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dc=Pin(33, Pin.OUT),
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backlight=Pin(16, Pin.OUT),
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rotation=1,
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color_order=st7789.BGR)
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height = tft.height # height of display in pixels
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width = tft.width # width if display in pixels
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tfa = 1 # top free area when scrolling
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bfa = 3 # bottom free area when scrolling
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scroll = 0 # scroll position
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wheel = 0 # color wheel position
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tft.vscrdef(tfa, width, bfa) # set scroll area
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tft.vscsad(scroll + tfa) # set scroll position
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tft.fill(st7789.BLACK) # clear screen
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half = (height >> 1) - 1 # half the height of the dislay
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interval = 0 # steps between new points
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increment = 0 # increment per step
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counter = 1 # step counter, overflow to start
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current_y = 0 # current_y value (right point)
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last_y = 0 # last_y value (left point)
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# segment offsets
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x_offsets = [x * (width // 8) -1 for x in range(2,9)]
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while True:
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# when the counter exceeds the interval, save current_y to last_y,
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# choose a new random value for current_y between 0 and 1/2 the
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# height of the display, choose a new random interval then reset
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# the counter to 0
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if counter > interval:
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last_y = current_y
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current_y = random.randint(0, half)
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counter = 0
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interval = random.randint(10, 100)
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increment = 1/interval # increment per step
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# clear the first column of the display and scroll it
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tft.vline(scroll, 0, height, st7789.BLACK)
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tft.vscsad(scroll + tfa)
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# get the next point between last_y and current_y
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tween = int(between(last_y, current_y, counter * increment))
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# draw mirrored pixels across the display at the offsets using the color_wheel effect
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for i, x_offset in enumerate(x_offsets):
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tft.pixel((scroll + x_offset) % width, half + tween, color_wheel(wheel+(i<<2)))
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tft.pixel((scroll + x_offset) % width, half - tween, color_wheel(wheel+(i<<2)))
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# increment scroll, counter, and wheel
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scroll = (scroll + 1) % width
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wheel = (wheel + 1) % 256
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counter += 1
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main()
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@ -0,0 +1,53 @@
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"""
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feathers.py
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Smoothly scroll mirrored rainbow colored random curves across the display.
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"""
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import random
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import math
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import time
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from machine import Pin, SPI
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import st7789py as st7789
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import vga1_8x8 as font
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def center_on(display, font, text, y, fg, bg):
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'''
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Center the text on the display
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'''
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x = (display.width - len(text) * font.WIDTH) // 2
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display.text(font, text, x, y, fg, bg)
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def main():
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'''
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The big show!
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'''
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#enable display and clear screen
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spi = SPI(2, baudrate=40000000, sck=Pin(17), mosi=Pin(21), miso=None)
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tft = st7789.ST7789(
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spi,
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128,
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128,
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reset=Pin(34, Pin.OUT),
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cs=Pin(15, Pin.OUT),
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dc=Pin(33, Pin.OUT),
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backlight=Pin(16, Pin.OUT),
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rotation=1,
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color_order=st7789.BGR)
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height = tft.height # height of display in pixels
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width = tft.width # width if display in pixels
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while True:
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for rotation in range(4):
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tft.rotation(rotation)
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tft.fill(st7789.BLACK)
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tft.rect(0, 0, width, height, st7789.RED)
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center_on(tft, font, "Rotation", height // 2 - font.HEIGHT, st7789.WHITE, st7789.BLACK)
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center_on(tft, font, str(rotation), height // 2 + font.HEIGHT, st7789.WHITE, st7789.BLACK)
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time.sleep(1)
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main()
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@ -0,0 +1,70 @@
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"""
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scroll.py
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Smoothly scrolls all font characters up the screen on the LILYGO® TTGO
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T-Display. Only works with fonts with heights that are even multiples of
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the screen height, (i.e. 8 or 16 pixels high)
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"""
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import time
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import random
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from machine import Pin, SPI
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import st7789py as st7789
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# choose a font
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# from romfonts import vga1_8x8 as font
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# from romfonts import vga2_8x8 as font
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# from romfonts import vga1_8x16 as font
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# from romfonts import vga2_8x16 as font
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# from romfonts import vga1_16x16 as font
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# from romfonts import vga1_bold_16x16 as font
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# from romfonts import vga2_16x16 as font
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from romfonts import vga2_bold_16x16 as font
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def main():
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spi = SPI(2, baudrate=40000000, sck=Pin(17), mosi=Pin(21), miso=None)
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tft = st7789.ST7789(
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spi,
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128,
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128,
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reset=Pin(34, Pin.OUT),
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cs=Pin(15, Pin.OUT),
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dc=Pin(33, Pin.OUT),
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backlight=Pin(16, Pin.OUT),
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rotation=0,
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color_order=st7789.BGR)
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last_line = tft.height - font.HEIGHT
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tfa = 1 # top free area when scrolling
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bfa = 3 # bottom free area when scrolling
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tft.vscrdef(tfa, tft.height, bfa)
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tft.fill(st7789.BLUE)
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scroll = 0
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character = 0
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while True:
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tft.fill_rect(0, scroll, tft.width, 1, st7789.BLUE)
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if scroll % font.HEIGHT == 0:
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tft.text(
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font,
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f' x{character:02x}= {chr(character)} ',
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0,
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(scroll + last_line) % tft.height,
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st7789.WHITE,
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st7789.BLUE)
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character = (character + 1) % (font.LAST+1)
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tft.vscsad(scroll + tfa)
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scroll += 1
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time.sleep_ms(10)
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if scroll == tft.height:
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scroll = 0
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main()
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