todbot

# wavetable_render_code.py - Render wavetables to PyGamer display
#
# 27 Aug 2023 - @todbot / Tod Kurt
#
# This code is currently a mess but it does function. :)
# video demo: https://www.youtube.com/watch?v=O9iZOytzOHg
# 
# Needs wavetables in WAV format from http://waveeditonline.com/
# loaded in the "/wav" directory.  Just download a few and stash them in "/wav"
#

gamblor21

import ulab.numpy as np
import random
import synthio

SAMPLE_SIZE = 200
sinwave1 = np.array(np.sin(np.linspace(0, 2*np.pi, SAMPLE_SIZE, endpoint=False)) * 32767, dtype=np.int16)
sinwave2 = np.array(np.sin(np.linspace(np.pi/2, 2.5*np.pi, SAMPLE_SIZE, endpoint=False)) * 32767, dtype=np.int16)
downwave = np.linspace(32767, -32767, num=3, dtype=np.int16)

noisewave = np.array([random.randint(-32767, 32767) for i in range(SAMPLE_SIZE)], dtype=np.int16)

todbot

# synthio_midi_synth.py - pretty usable MIDI-controlled synth using synthio in CircuitPython
# 11 May 2023 - @todbot / Tod Kurt
# Uses cheapie PCM5102 DAC on QTPY RP2040
# Video demo: https://www.youtube.com/watch?v=N-PbbWWDE6k
# Features:
# - midi velocity controls attack rate (gentle press = slow, hard press = fast)
# - notes have small random detune on all oscillators to reduce phase stacking
# - adjustable number of detuned oscillators per note 1-5 (midi controller 83)
# - five selectable waveforms: saw, squ, sin, noisy sin, noise (midi controller 82)
# - vibrato depth on mod wheel (midi controller 1)

todbot

# synthio_algosong1.py -- A little algorithmic song made with CircuitPython's upcoming synthio ability
# 7 May 2023 - @todbot / Tod Kurt
# Uses a cheapie PCM5102 I2S DAC on a QTPY RP2040
import time,random
import board, analogio
import audiobusio, audiomixer
import synthio
import ulab.numpy as np

# qtpy rp2040 SPI pins

todbot

#
# wavetable_synthio_synth.py -- Demonstrate new synthio.Synthesizer as wavetable MIDI synth
# 15 Apr 2023 - @todbot / Tod Kurt
# video demo: https://www.youtube.com/watch?v=uUnS3nR2K-8
#
# Hooked up to generic I2S DAC
# Uses two pots:
#  knobA - selects the base wave
#  knobB - selects the mix between base wave and next wave
#

sandyjmacdonald

# CircuitPython USB MIDI to serial MIDI converter for Raspberry Pi Pico (RP2040).

# IMPORTANT! Should *only be used for MIDI in*, i.e. from USB devices to hardware
# MIDI synths, and *not* in the opposite direction. Doing so could risk damage to
# the microcontroller, your computer, or both.

# Wire a 10Ω resistor from the Tx pin on the Raspberry Pi Pico or other 
# RP2040 board to the 3.5mm stereo jack tip, a 33Ω resistor from the 3v3 pin on
# the Raspberry Pi Pico to the 3.5mm stereo jack ring, and the ground pin on the
# Raspberry Pi Pico to the 3.5mm stereo jack sleeve.

Gadgetoid

CFLAGS_ALL=-I../libusbgx/build/include -I../bcm2835-1.68/build/include -L../bcm2835-1.68/build/lib -I../lua-5.4.0/src -L../libusbgx/build/lib -L../libserialport/build/lib -L../lua-5.4.0/src -lpng -lz -lpthread -llua -lm -lbcm2835 -ldl

pi400: CFLAGS+=-static $(CFLAGS_ALL) -lusbgx -lconfig -DPI400_USB
pi400: pi400.c gadget-hid.c
	$(CC)  $^ $(CFLAGS) -o $@


pi400test: CFLAGS+=-static $(CFLAGS_ALL) -lusbgx -lconfig
pi400test: pi400.c gadget-hid.c
	$(CC)  $^ $(CFLAGS) -o $@

todbot

# esp32s2-test.py -- small WiFi test program for ESP32-S2 CircuitPython 6
# taken from https://www.reddit.com/r/circuitpython/comments/ianpm8/using_wifi_when_running_on_esp32s2saola1_board/
#
import time
import ipaddress
import wifi
import socketpool
import ssl
import adafruit_requests

Ircama

Replacing Netflix and Amazon keys of the webOS LG TV LG Magic Remote with other apps

This procedure allows substituting one or both Netflix and Amazon keys of the Magic Remote Control Unit with other apps or TV control menus of the webOS LG TV.

Netflix and Amazon keys can be found just over the Red-Green-Yellow-Blue color buttons of such remote.

Assumption for this procedure is that you accept to uninstall the apps related to the keys to be substituted. Example: if you want to replace the Netflix key, you need to uninstall Netflix (possibly, you are not using Netflix if you do not need such key).

To uninstall Netflix or Amazon Prime, press the Home key of the Magic Remote, select the "LG Content Store" app, press "APP" at the top of the screen, press "My Apps", press the "Rem

tomhicks

/*
Copy this into the console of any web page that is interactive and doesn't
do hard reloads. You will hear your DOM changes as different pitches of
audio.

I have found this interesting for debugging, but also fun to hear web pages
render like UIs do in movies.
*/

const audioCtx = new (window.AudioContext || window.webkitAudioContext)()