newxie multi display
adding two demos for using four newxie displays together with raspberry pi
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Liz
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Newxie_TFT_Examples/Newxie_Python_Multi_Pi/newxie_clock.py
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Newxie_TFT_Examples/Newxie_Python_Multi_Pi/newxie_clock.py
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# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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from threading import Thread
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from PIL import Image, ImageDraw, ImageFont
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import digitalio
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import board
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import busio
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from adafruit_rgb_display import st7789
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BAUDRATE = 10000000
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WIDTH = 135
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HEIGHT = 240
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cs_pin0 = digitalio.DigitalInOut(board.D23)
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dc_pin0 = digitalio.DigitalInOut(board.D25)
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cs_pin1 = digitalio.DigitalInOut(board.CE1)
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dc_pin1 = digitalio.DigitalInOut(board.D24)
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cs_pin2 = digitalio.DigitalInOut(board.D16)
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dc_pin2 = digitalio.DigitalInOut(board.D26)
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cs_pin3 = digitalio.DigitalInOut(board.D17)
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dc_pin3 = digitalio.DigitalInOut(board.D27)
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spi = board.SPI()
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spi1 = busio.SPI(clock=board.D21, MOSI=board.D20)
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disp0 = st7789.ST7789(spi, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin0, dc=dc_pin0, baudrate=BAUDRATE)
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disp1 = st7789.ST7789(spi, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin1, dc=dc_pin1, baudrate=BAUDRATE)
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disp2 = st7789.ST7789(spi1, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin2, dc=dc_pin2, baudrate=BAUDRATE)
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disp3 = st7789.ST7789(spi1, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin3, dc=dc_pin3, baudrate=BAUDRATE)
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def update_digit_display(disp, get_digit_func):
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font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 80)
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while True:
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digit = get_digit_func()
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image = Image.new("RGB", (WIDTH, HEIGHT), "black")
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draw = ImageDraw.Draw(image)
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text = str(digit)
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text_width, text_height = draw.textsize(text, font=font)
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text_x = (WIDTH - text_width) // 2
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text_y = (HEIGHT - text_height) // 2
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draw.text((text_x, text_y), text, font=font, fill="white")
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disp.image(image)
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time.sleep(1)
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def get_hour_tens():
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current_time = time.localtime()
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hour = current_time.tm_hour % 12 or 12
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return hour // 10
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def get_hour_ones():
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current_time = time.localtime()
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hour = current_time.tm_hour % 12 or 12
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return hour % 10
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def get_minute_tens():
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current_time = time.localtime()
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minute = current_time.tm_min
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return minute // 10
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def get_minute_ones():
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current_time = time.localtime()
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minute = current_time.tm_min
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return minute % 10
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Thread(target=update_digit_display, args=(disp0, get_hour_tens)).start()
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Thread(target=update_digit_display, args=(disp1, get_hour_ones)).start()
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Thread(target=update_digit_display, args=(disp2, get_minute_tens)).start()
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Thread(target=update_digit_display, args=(disp3, get_minute_ones)).start()
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Newxie_TFT_Examples/Newxie_Python_Multi_Pi/newxie_count.py
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Newxie_TFT_Examples/Newxie_Python_Multi_Pi/newxie_count.py
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# SPDX-FileCopyrightText: 2025 Liz Clark for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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from threading import Thread, Lock
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from PIL import Image, ImageDraw, ImageFont
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import digitalio
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import board
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import busio
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from adafruit_rgb_display import st7789
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BAUDRATE = 25000000
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WIDTH = 135
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HEIGHT = 240
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cs_pin0 = digitalio.DigitalInOut(board.D23)
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dc_pin0 = digitalio.DigitalInOut(board.D25)
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cs_pin1 = digitalio.DigitalInOut(board.CE1)
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dc_pin1 = digitalio.DigitalInOut(board.D24)
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cs_pin2 = digitalio.DigitalInOut(board.D16)
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dc_pin2 = digitalio.DigitalInOut(board.D26)
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cs_pin3 = digitalio.DigitalInOut(board.D17)
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dc_pin3 = digitalio.DigitalInOut(board.D27)
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spi = board.SPI()
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spi1 = busio.SPI(clock=board.D21, MOSI=board.D20)
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disp0 = st7789.ST7789(spi, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin0, dc=dc_pin0, baudrate=BAUDRATE)
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disp1 = st7789.ST7789(spi, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin1, dc=dc_pin1, baudrate=BAUDRATE)
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disp2 = st7789.ST7789(spi1, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin2, dc=dc_pin2, baudrate=BAUDRATE)
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disp3 = st7789.ST7789(spi1, rotation=180, width=WIDTH, height=HEIGHT,
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x_offset=53, y_offset=40, cs=cs_pin3, dc=dc_pin3, baudrate=BAUDRATE)
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def update_digit_display(disp, get_digit_func):
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font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 80)
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while True:
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digit = get_digit_func()
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image = Image.new("RGB", (WIDTH, HEIGHT), "black")
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draw = ImageDraw.Draw(image)
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text = str(digit)
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text_width, text_height = draw.textsize(text, font=font)
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text_x = (WIDTH - text_width) // 2
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text_y = (HEIGHT - text_height) // 2
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draw.text((text_x, text_y), text, font=font, fill="white")
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disp.image(image)
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time.sleep(0.1)
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counter = 0
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counter_lock = Lock()
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# pylint: disable=global-statement
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def increment_counter():
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global counter
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while True:
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with counter_lock:
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counter = (counter + 1) % 10000
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time.sleep(0.01)
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def digit_0():
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with counter_lock:
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return (counter // 1000) % 10
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def digit_1():
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with counter_lock:
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return (counter // 100) % 10
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def digit_2():
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with counter_lock:
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return (counter // 10) % 10
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def digit_3():
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with counter_lock:
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return counter % 10
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Thread(target=increment_counter).start()
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Thread(target=update_digit_display, args=(disp0, digit_0)).start()
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Thread(target=update_digit_display, args=(disp1, digit_1)).start()
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Thread(target=update_digit_display, args=(disp2, digit_2)).start()
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Thread(target=update_digit_display, args=(disp3, digit_3)).start()
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