RobCranfill

# Based on code from Adafruit Industries
# SPDX-License-Identifier: MIT
"""Rob's CircuitPython blink example for built-in NeoPixel LED"""
import time
import board
import neopixel
import random


k = 20 # number of steps up or down

RobCranfill

# For the Adafruit miniPiTFT 3.3" LCD display: turn the backlight on/off (usually off).
# robcranfill

import board
import digitalio
import sys

def set_backlight_state(backlight_on: bool) -> None:
    backlight_ = digitalio.DigitalInOut(board.D22)
    backlight_.switch_to_output()

RobCranfill

# To make a CP device stop auto-reloading code,

<code>
import supervisor
supervisor.runtime.autoreload = False  # CirPy 8 and above
print("supervisor.runtime.autoreload = False")

RobCranfill

import microcontroller
microcontroller.on_next_reset(microcontroller.RunMode.BOOTLOADER)
microcontroller.reset()

RobCranfill

# Test outputting stereo audio via a PCM5102 board
# cran, based on:
#   SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#   SPDX-License-Identifier: MIT

import board
import audiocore, audiobusio, audiomixer, synthio


# Pico

RobCranfill

# put this in .bashrc - or .bash_aliases?
function mountcirc() {
 # mount drive $1 to /mnt/CIRCUITPY
  sudo mount -t drvfs $1 /mnt/CIRCUITPY/
  echo "Mounted $1 to /mnt/CIRCUITPY"
  ls -l /mnt/CIRCUITPY
  }

RobCranfill

# to see the name of the file(s) on the device:
import os
os.listdir()

# to run the code
# (ok actually you would do this in a separate step)
exec(open('code.py').read())

RobCranfill

#!/bin/bash
# copy work files from thumbdrive to a folder here
# params: {new folder name}

NEWFOLDER="$1"
mkdir "$NEWFOLDER"

cp /mnt/f/*py "$NEWFOLDER"
ls -Al /mnt/f/lib >>"$NEWFOLDER"/liblist.text
tree /mnt/f/      >>"$NEWFOLDER"/dirtree.text

RobCranfill

// Adapted from https://github.com/ambotaku/pico-getLine
// Trivial code change to allow compiling with plain C on Pico.
//
const uint startLineLength = 8; // the linebuffer will automatically grow for longer lines
const char eof = 255;           // EOF in stdio.h -is -1, but getchar returns int 255 to avoid blocking
/*
 *  read a line of any  length from stdio (grows)
 *
 *  @param fullDuplex input will echo on entry (terminal mode) when false
 *  @param linebreak  "\r" may be needed for terminals

RobCranfill

# Display a scrolling message on an Adafruit 8x8 LED matrix.
# For the Adafruit RP2040 Feather board (or any CircuitPython board?).
#
import board
from adafruit_ht16k33.matrix import Matrix8x8
import time
import font  # This is my data for a simple 8x8 font, found in this directory.

# For the given string, create the big list of bit values (columns), left to right.
# TODO: This might display faster if we didn't pack these bits, but just