rsbohn

Wired to the SPI headers (plus D5)
fram metro_m4 color
Vin  5v   red
...
Gnd  Gnd  black
SCK  SCK  white
MISO MISO brown
MOSI MOSI orange
CS   D5   blue (socket-pin)
...

rsbohn

# SPDX-FileCopyrightText: Copyright (c) 2021 Randall Bohn (dexter)
#
# SPDX-License-Identifier: MIT
#
# https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling
import array
import math
from audiocore import RawSample

tone_row = [697, 770, 852, 942]

rsbohn

#CircuitPython2022

For the Broadcom ports I would really like to have an onboard editor. 
Something simple that would allow for stand-alone coding beyond what you can do on the REPL.

I would also like to explore the possibilities and limitations of MIDI on CircuitPython.

Dexter Starboard 2022-01-04

rsbohn

# SPDX-FileCopyrightText: Copyright (c) 2021 Randall Bohn (dexter)
#
# SPDX-License-Identifier: MIT
"""LCD Widget"""
import time
import displayio
import terminalio

CHARS = 1
ROWS = 1

rsbohn

# just add this to bubbles.py
# then call it instead of herd()

def singularity(group):
    cx = display.width//2
    cy = display.height//2
    for shape in group:
        dx =  max(1, int(math.sqrt(abs(cx-shape.x))))
        if shape.x > cx: shape.x -= dx
        else: shape.x += dx

rsbohn

# SPDX-FileCopyrightText: Copyright (c) 2021 Randall Bohn (dexter)
#
# SPDX-License-Identifier: MIT
"""snowflakes"""
# like bubbles but they fall from they sky
# circup install adafruit_display_shapes
# circup install adafruit_fancyled
import random
import time
import displayio

rsbohn

# SPDX-FileCopyrightText: Copyright (c) 2021 Randall Bohn (dexter)
#
# SPDX-License-Identifier: MIT
"""Bubbles on your face (LED Glasses)"""
# circup install adafruit_display_shapes
# circup install adafruit_fancyled
import random
import time
import displayio

rsbohn

# SPDX-FileCopyrightText: Copyright (c) 2021 Randall Bohn (dexter)
#
# SPDX-License-Identifier: MIT
"""Bubbles"""
# circup install adafruit_display_shapes
# circup install adafruit_fancyled
import random
import time
import displayio
import framebufferio

rsbohn

# SPDX-FileCopyrightText: Copyright (c) 2021 Randall Bohn (dexter)
#
# SPDX-License-Identifier: MIT
"""
Demonstrate usage of the terminalio module.

The module provides a VT100 emulation within a displayo.TileGrid.
A good reference for VT100 "escape" codes is found at
https://www.csie.ntu.edu.tw/~r92094/c++/VT100.html
"""

rsbohn

import time
import board
import displayio

display = board.DISPLAY
splash = displayio.Group()
display.show(splash)

n_colors = 8
palette = displayio.Palette(n_colors)