offlinehacker

#!/usr/bin/python

import flac.encoder as encoder
import pyaudio
import sys
import requests
import random

from threading import Thread
from Queue import Queue, Empty

0xabad1dea

rtl-sdr build notes for OSX 
using macports http://www.macports.org/
see http://sdr.osmocom.org/trac/wiki/rtl-sdr

sudo port install cmake
sudo port install libusb
sudo port install pkgconfig
sudo port install sox # for easy audio
git clone git://git.osmocom.org/rtl-sdr.git
cd rtl-sdr/

canadaduane

# Adventures In Wireless BeagleBone Black:
# What prevents my Edimax WiFi USB dongle from autoconnecting to my home WiFi network, "Catalina Island Network"?

# NOTE: If you're here to glean info for your own setup, note that I've installed the
# following two connman auxiliary packages which give the tools and test scripts in
# /usr/lib/connman/test that I use below
# $ opkg install connman-tools connman-tests
#
# Also, I've disabled power save mode for the WiFi so that the BBB can act as a server:
# $ cat > /etc/udev/rules.d/wifi_power_save.rules <<-EOF

shlomibabluki

# coding=UTF-8
import nltk
from nltk.corpus import brown

# This is a fast and simple noun phrase extractor (based on NLTK)
# Feel free to use it, just keep a link back to this post
# http://thetokenizer.com/2013/05/09/efficient-way-to-extract-the-main-topics-of-a-sentence/
# Create by Shlomi Babluki
# May, 2013

abhinav-upadhyay

#!/usr/bin/env python

# An example of decoding/encoding datetime values in JSON data in Python.
# Code adapted from: http://broadcast.oreilly.com/2009/05/pymotw-json.html

# Copyright (c) 2023, Abhinav Upadhyay
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

marcelom

#!/usr/bin/env python

## Tiny Syslog Server in Python.
##
## This is a tiny syslog server that is able to receive UDP based syslog
## entries on a specified port and save them to a file.
## That's it... it does nothing else...
## There are a few configuration parameters.

LOG_FILE = 'youlogfile.log'

jeje

#include <IRremote.h>

int RECV_PIN = 11;

IRrecv irrecv(RECV_PIN);
IRsend irsend;

boolean recording = true;
decode_results results;

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

whitequark

  (3995:lookup-switch 3523 [3307, 3307, 3307, 3337, 3337, 3337, 3337, 3337, 3491, 3491, 3491, 3491, 3491, 3491, 3491, 3523]
    (ternary
      (3560:===
        (3558:bit-or
          (3555:lshift
            (3551:integer 46)
            (3553:integer 16))
          (3556:integer 14))
        (3559:get-local 3))
      (3564:integer 0)