todbot

// samd21 blink LED on PA10 on Trinket M0, controlled by button on D3 (PA07)
// adapted / stolen from:
// https://github.com/LifeWithDavid/RaspberryPiPico-BareMetalAdventures/blob/main/Chapter%2004/assembly.s
// with much help from https://www.whynotestflight.com/excuses/its-alive-samd21e18a-assembly-no-sdk/
    
.cpu cortex-m0
.syntax unified
.thumb

.global main                    // 'main' used in startup.s

todbot

// samd21 blink LED on PA10 on Trinket M0
// adapted / stolen from:
// https://github.com/LifeWithDavid/RaspberryPiPico-BareMetalAdventures/blob/main/Chapter%2004/assembly.s
    
.cpu cortex-m0
.syntax unified
.thumb

.global main                // used in startup.s
    

todbot

// originally from: https://github.com/dwelch67/atsamd_samples/tree/master/ATSAMD21/sparkfun/blinker01

#include <stdint.h>  // for uint32_t

int main(void) {
    
    unsigned int ra;
    unsigned int rx;

    uint32_t* PORT_A_DIR = (uint32_t*)0x41004400;  // "PORT" from Table 12-1 & 23.7 of SAMD21 Datasheet 

todbot

# rawhid_code.py  -- copy to CIRCUITPY as "code.py"
# don't forget to install rawhid_boot.py as "boot.py" and press reset
# works with report IDs up to 63 byte report count
# test with hidapitester like:
# ./hidapitester --usagePage 0xff00 --usage 1 --open -l 64 --send-output 2,3,4,5 --timeout 1000 --read-input 1
# adapted from code presented here:
# https://github.com/libusb/hidapi/issues/478

import time
import usb_hid

todbot

# starting to play with bitmapfilter
# 31 Mar 2024 - @todbot / Tod Kurt
import time, math, random
import board
import vectorio
import displayio
import bitmaptools
import bitmapfilter

display = board.DISPLAY

todbot

# bitmapfilter_play3_code.py -- chops + blur on random lines 
# 2 Apr 2024 - @todbot / Tod Kurt
import time, math, random
import board
import rainbowio
import vectorio
import displayio
import bitmaptools
import bitmapfilter
import gc 

todbot

# bitmapfilter_play2_code.py -- spirograph fun w/ bitmapfilter
# 1 Apr 2024 - @todbot / Tod Kurt
import time, math, random
import board
import rainbowio
import vectorio
import displayio
import bitmaptools
import bitmapfilter

todbot

# Make an internet clock with CircuitPython using WorldTimeAPI.org
# 31 Mar 2024 - @todbot / Tod Kurt
# Use resulting strings for displaying on a display of some kind
import os, time
import wifi
import adafruit_requests
import socketpool
import ssl

time_url = "http://worldtimeapi.org/api/ip"

todbot

"""
LilyGo T-Display S3 display hand-setup. Not normally required if using https://circuitpython.org/board/lilygo_tdisplay_s3/
"""
import time
import board
import digitalio
import displayio
import paralleldisplaybus
import adafruit_st7789

todbot

# audiomixer_demo_i2s.py -- show how to fade up and down playing loops
# Code based on that of https://github.com/todbot/circuitpython-tricks/blob/main/larger-tricks/audiomixer_demo.py
# where you can also find the WAV files used
# 30 Nov 2022 - @todbot / Tod Kurt

import time
import board
import audiocore
import audiomixer
import audiobusio