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thijstriemstra /
Last active July 31, 2023 13:01 — forked from savetheclocktower/
Using a potentiometer as a volume control for the Raspberry Pi
thijstriemstra /
Last active March 22, 2023 06:58
omxplayer USB audio
# Playback on USB audio device (the second soundcard's first device),
# with omxplayer:
# $ ./ myfile.mp4
# Use 'aplay -l' to list available devices, e.g:
# $ aplay -l
# card 1: Device [USB Audio Device], device 0: USB Audio [USB Audio]
# Subdevices: 1/1
thijstriemstra /
Last active January 2, 2021 17:44
Export Baikal addressbook using Python 3

This script loads an addressbook from a Baikal SQLite database file using SQLAlchemy, and writes the contacts to a single baikal.vcf file.

Install dependencies:

pip3 install SQLAlchemy vobject
thijstriemstra / gist:f1900272b8d680bda765
Created January 3, 2015 17:43
wavesurfer destroy before rendering complete
<!DOCTYPE html>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link href="data:image/gif;" rel="icon" type="image/x-icon" />
<!-- Bootstrap -->
<link href="//" rel="stylesheet">
thijstriemstra /
Last active May 7, 2018 02:38
example upload Flask server
import os
from flask import Flask, flash, request, redirect, url_for, render_template, send_from_directory
from werkzeug import secure_filename
UPLOAD_FOLDER = 'uploads'
ALLOWED_EXTENSIONS = set(['webm', 'mp4', 'mp3', 'wav', 'jpeg', 'gif', 'png'])
static_folder = os.path.abspath(os.path.dirname(__file__))
template_dir = os.path.join(static_folder, 'examples')
thijstriemstra /
Last active April 10, 2018 08:57
pyqt async sevensegment example using quamash.QEventLoop and max7219
import sys
import time
import asyncio
from PyQt5.QtWidgets import (QApplication, QProgressBar, QMainWindow, QSlider,
QVBoxLayout, QWidget)
from quamash import QEventLoop, QThreadExecutor
import max7219.led as led
runtime/cgo: pthread_create failed: Resource temporarily unavailable
SIGABRT: abort
PC=0x76dedf70 m=2 sigcode=4294967290
goroutine 0 [idle]:
goroutine 1 [chan receive, 437 minutes]:
main.btcdMain(0x0, 0x0, 0x0)
/home/rpitest/go/src/ +0x6dc
thijstriemstra /
Created August 20, 2017 19:04
Parse fullOrders.csv downloaded from Bittrex account
Parse fullOrders.csv downloaded from Bittrex account.
pip install dateparser
import csv
thijstriemstra /
Last active December 9, 2016 16:29
bump video.js version in examples and
export OLD_VERSION=5.9.2
export NEW_VERSION=5.10.8
# check if language files exist
wget --delete-after$NEW_VERSION/lang/nl.js
# update videojs in examples and documentation
find examples/ -type f -name '*.html' -exec sed -i '' -e "s/$OLD_VERSION/$NEW_VERSION/" {} \;
thijstriemstra /
Last active November 22, 2016 17:02
time.sleep calls block pyqt app
#!/usr/bin/env python
PyQt example for seven segment displays.
import sys
import time
from PyQt5 import QtWidgets