rolisz

import time
from collections import deque

import numpy as np
import sounddevice as sd
from beepy import beep
from infi.systray import SysTrayIcon

last_alert = time.time() - 10
q = deque(maxlen=200)

endor-force

  - title: Energi
    id: energi
    icon: mdi:home-lightning-bolt-outline
    cards:
      - type: energy-date-selection
      - type: vertical-stack
        cards:
        - type: energy-usage-graph
        - type: gauge
          name: Aktuell förbrukning

ChipCE

READ THIS FIRST

Adaptive bed mesh is merged into klipper master branch. You can use this feature without this custom macro. Official klipper adaptive bed mesh

Klipper mesh on print area only install guide

What this macro do

• This macro will dynamically changing the bed mesh area based on the size of the parts will be printed. The fw will only probe on the area that the part will be printed (plus mesh_area_offset value)

roysbike

OpenVPN Server and certificate management on MikroTik

Contents

• Setup OpenVPN server and generate certificates
• Add a new user
• Setup OpenVPN client
• Decrypt private key to avoid password asking
• Delete a user and revoke his certificate
• Revert OpenVPN server configuration on MikroTik

rgrokett

RTLSDR-Airband instructions for Raspberry Pi 3

Build a Aircraft scanner from a Pi 3 and an RTL-SDR radio dongle and external audio PC speaker.

Full details are available at https://github.com/szpajder/RTLSDR-Airband/wiki

Hardware

• Raspberry Pi 3 with at least 2 USB slots
• RTL-SDR Dongle V3 (typical one, not ADS-B!)
• USB powered speaker with stereo audio plug
• Antenna with connecting cable for RTL-SDR dongle

Samfox2

Description

[Server] GStreamer ---> HTML [Client]

Require

• gstreamer-1.x
• Browser which supports video tag of HTML5

debian

lxe

Receive GOES-16 and GOES-17 Images with a Raspberry Pi and RTL-SDR dongle

Also see the original Pieter Noordhuis's guide

Hardware

You need:

1. Raspberry Pi Model B (or B+) with a MicroSD Card $35-40
2. An RTL-SDR dongle:

MawKKe

#!/usr/bin/env python3

import sys
import os
import re
import subprocess as sub
import argparse
import tempfile
import json
from concurrent.futures import ThreadPoolExecutor, as_completed

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

primaryobjects

m3u8 Downloading

1. Open Chrome Developer tools and click the Network tab.
2. Navigate to the page with the video and get it to start playing.
3. Filter the list of files to "m3u8".
4. Find master.m3u8 or index.m3u8 and click on it.
5. Save the file to disk and look inside it.
6. If the file contains a single m3u8 master url, copy that one instead.
7. Run the program m3u8x.
8. Paste the same m3u8 url in both textboxes (URL and Quality URL) and click "Headers" and set the referral url and user-agent from the request as found in Chrome.