terminalio.Terminal with color

color_terminal.py

# SPDX-FileCopyrightText: 2023 anecdata
#
# SPDX-License-Identifier: Unlicense

# terminalio.FONT.bitmap is 2-color
# changing a palette color changes every use of that palette
# but there's got to be a better way...

import time
import random
import sys
import board
import displayio
import terminalio

STRLEN = 39
CHARS = "0123456789ABCDEF"

def get_logterm(color):
    fontx, fonty = terminalio.FONT.get_bounding_box()
    palette = displayio.Palette(2)
    palette[0] = 0x000000
    palette[1] = color
    palette.make_transparent(0)
    logbox = displayio.TileGrid(terminalio.FONT.bitmap,
                                x=0,
                                y=0,
                                width=display.width // fontx,
                                height=display.height // fonty,
                                tile_width=fontx,
                                tile_height=fonty,
                                pixel_shader=palette)
    return logbox, terminalio.Terminal(logbox, terminalio.FONT)

display = board.DISPLAY  # or equivalent external display library
splash = displayio.Group()

w_logbox, w_logterm = get_logterm(0xffffff)
r_logbox, r_logterm = get_logterm(0xff0000)
g_logbox, g_logterm = get_logterm(0x00ff00)
b_logbox, b_logterm = get_logterm(0x0000ff)

splash.append(w_logbox)
splash.append(r_logbox)
splash.append(g_logbox)
splash.append(b_logbox)

display.show(splash)

print("\033["+"31m"+"Hello Serial!"+"\033["+"0m", file=sys.stdout)  # serial console
print("\r\nHello displayio!", file=w_logterm, end="")  # displayio

terms = (w_logterm, r_logterm, g_logterm, b_logterm)
while True:
    term = random.choice(terms)
    for this_term in terms:
        if this_term is term:
            print(f"\r\n{"".join(random.choice(CHARS) for _ in range(STRLEN))}", file=this_term, end="")  # displayio
        else:
            print(f"\r\n", file=this_term, end="")  # displayio
    time.sleep(0.1)

single-color: https://gist.github.com/anecdata/0e426cc9d150c078f7f0b276afa6ff57