stonehippo

cd ~/circuitpython

git pull
git submodule sync
git submodule update --init

cd $OLDPWD

stonehippo

Hallowing M4 & touchio

The Adafruit Hallowing M4 is a feature-filled development board, including four capacitve touch "teeth" at the bottom of it's skull-shaped circuit board.

CircuitPython has a nifty module for working cap touch pins, touchio. However, the Hallowing M4 uses an Atmel SAMD51, which doesn't handle cap touch in hardware (unlike the SAMD21 in the Hallowing M0). If you try to use the cap touch pins without some additional setup, you'll get an error.

import board
import touchio

stonehippo

ARM Embedded Toolchains

GNU toolchain from ARM

This is the canonical place to get the GNU GCC toolchain for ARM Embedded. For detailed info, see https://developer.arm.com/open-source/gnu-toolchain. Installers for Windows, Linux 64 bit and MacOS 64 bit, plus a source tarball.

https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads (this page has been deprecated, but is still available and has older versions)

https://developer.arm.com/Tools%20and%20Software/GNU%20Toolchain (newer page)

stonehippo

// If defer is working, this won't execute until the page has loaded
console.log('starting external...');

// Put in a something that takes some time, to simulate a large library load
for (var really_big_number = 10000000;really_big_number--;) {
  really_big_number;
}
External = {
  'wow': function() {
    console.log('Wowsers!');

stonehippo

// A simple trigger for the Adafruit Audio FX Sound Board
// For complete info on the sound board, see https://learn.adafruit.com/adafruit-audio-fx-sound-board/overview

/*
This is a simple test of a direct trigger of the Audio FX Sounds Board from an Arduino.

For my test, I used an Arduino Pro Mini running at 3.3v & 8mHz. Digital pin #4 of the Arduino
was connected to trigger pin #0 of the Sound Board, and I tied them to a common ground. I powered
Sound Board via a USB external battery for the initial tests, and the Arduino via the FTDI cable.
For later tests, I powered the Sound Board via the Arduino's VCC (3v) pin directly.

stonehippo

MIT License

Copyright (c) 2022 George White

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

stonehippo

Zsh aliases for Ardupy

Zsh aliases for an installation of Ardupy using a Python virtualenv set up using pyenv.

It looks like Seeed has suspended development of Ardupy. It's been a while since anything was contributed, and they've archived the public repos.

Aliases

Alias	Command	Notes

stonehippo

// define pins for the RGB LED
byte led_red_pin = 3;
byte led_green_pin = 5;
byte led_blue_pin =  6;

int piezo_pin = A0;
int piezo_threshold = 250; // This may have to be tuned for your piezo

int wait = 10000; // the time before the last night and the cycle resets
int debounce = 200; // the number of milliseconds we'll wait to reject bad input 

stonehippo

import board
import displayio
import terminalio
import adafruit_displayio_ssd1306
from adafruit_display_text import label
from adafruit_displayio_layout.layouts.grid_layout import GridLayout

# release any displays that have already been set up
displayio.release_displays()

stonehippo

#define SOUND_TRIGGER 9 // the pin attached to a trigger on the sound FX board

void setup() {
  Serial.begin(9600);
  
  pinMode(LED_BUILTIN, OUTPUT);

  // set up the pin for the sound trigger, including pulling it high
  pinMode(SOUND_TRIGGER, OUTPUT);
  digitalWrite(SOUND_TRIGGER, HIGH);