96 lines
2.6 KiB
Python
Executable file
96 lines
2.6 KiB
Python
Executable file
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import subprocess
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import board
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import displayio
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from adafruit_display_text import label
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from adafruit_bitmap_font import bitmap_font
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from adafruit_st7789 import ST7789
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BORDER_WIDTH = 4
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TEXT_SCALE = 1
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font = bitmap_font.load_font("/home/pi/fonts/Arial-18.bdf")
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font_small = bitmap_font.load_font("/home/pi/fonts/Arial-14.bdf")
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font_bold = bitmap_font.load_font("/home/pi/fonts/Arial-Bold-24.bdf")
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# Release any resources currently in use for the displays
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displayio.release_displays()
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spi = board.SPI()
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tft_cs = board.CE0
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tft_dc = board.D25
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tft_rst = board.D24
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display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs, reset=tft_rst)
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display = ST7789(display_bus, width=320, height=170, colstart=35, rotation=270)
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# Make the display context
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splash = displayio.Group()
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display.show(splash)
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color_bitmap = displayio.Bitmap(display.width, display.height, 1)
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color_palette = displayio.Palette(1)
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color_palette[0] = 0xAA0088 # Purple
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bg_sprite = displayio.TileGrid(color_bitmap, pixel_shader=color_palette, x=0, y=0)
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splash.append(bg_sprite)
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# Draw a smaller inner rectangle
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inner_bitmap = displayio.Bitmap(
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display.width - (BORDER_WIDTH * 2), display.height - (BORDER_WIDTH * 2), 1
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)
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inner_palette = displayio.Palette(1)
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inner_palette[0] = 0x222222 # Dark Gray
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inner_sprite = displayio.TileGrid(
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inner_bitmap, pixel_shader=inner_palette, x=BORDER_WIDTH, y=BORDER_WIDTH
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)
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splash.append(inner_sprite)
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# display ip, cpu and memory usage
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cmd = "hostname -I | cut -d' ' -f1"
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IP = subprocess.check_output(cmd, shell=True).decode("utf-8")
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cmd = 'cut -f 1 -d " " /proc/loadavg'
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CPU = subprocess.check_output(cmd, shell=True).decode("utf-8")
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cmd = "free -m | awk 'NR==2{printf \"Mem: %s/%s MB %.2f%%\", $3,$2,$3*100/$2 }'"
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MemUsage = subprocess.check_output(cmd, shell=True).decode("utf-8")
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cmd = "vcgencmd measure_temp | grep -o -E '[[:digit:]].*'"
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cpu_temp = subprocess.check_output(cmd, shell=True).decode("utf-8")
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# Draw a label
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text_ip = label.Label(
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font_bold,
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text="IP: " + IP,
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color=0x1BF702,
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scale=TEXT_SCALE,
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)
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text_cpu = label.Label(
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font,
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text="CPU: " + cpu_temp,
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color=0xFFFFFF,
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scale=TEXT_SCALE,
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)
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text_mem = label.Label(
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font_small,
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text=MemUsage,
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color=0xCCCCCC,
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scale=TEXT_SCALE,
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)
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text_ip.x = 12
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text_cpu.x = 12
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text_mem.x = 12
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text_ip.y = 30
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text_cpu.y = 70
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text_mem.y = 150
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splash.append(text_ip)
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splash.append(text_cpu)
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splash.append(text_mem)
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while True:
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text_ip.text = "IP: " + IP
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text_cpu.text = "CPU:" + cpu_temp
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text_mem.text = MemUsage
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display.refresh()
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