antennas

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Antennas

apache_dokuwiki_ssl_certbot

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

apache2 + dokuwiki + ssl + letsencrypt (certbot) + virtual hosts (2020) * Install stuff apt-get install letsencrypt python3-certbot-apache dokuwiki apache2 * Configure ssl for main webpage a2ensite 000-default-le-ssl.conf sudo certbot --apache -d www.memelabs.net --post-hook "/usr/sbin/service apache2 restart"

apache2_ssl_debian

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

apache2 + ssl + debian + virtual hosts * Install apache2 sudo apt-get install apache2 * Activate module and website sudo a2ensite default-ssl sudo a2enmod ssl * Restart apache sudo /etc/init.d/apache2 restart * Generate self-signed certificates

apt_key_gpg

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Apt-key deprecated error When doing this: curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - Error looks like this: Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)). This works:

backup

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Making a backup Tips * Everytime that a configuration file is edited, make a symlink to it from a configuration backup directory. * Backup the configuration backup directory, your homes, /usr/local, /var, using rdiff-backup. Check for /opt and /srv .

baro

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Baro

bash

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

bash programming tricks extracting file extension file="example.pdf" file_extension=`echo $file | sed 's/.*\.//'` removing file extension file="example.pdf" file_extension=`echo $file | sed 's/.*\.//'` file_without_extension=`basename $file .$file_extension`

batteries

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Batteries

btrfs

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

BTRFS

changeuuid_vbox

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Changing uuid of virtualbox harddrives VBoxManage internalcommands setvdiuuid disk.vdi

disk_errors_and_badblocks

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Disk errors and badblocks

dist_compilation

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Distributed compilation * apt-get install distcc ccache mkdir local/DIR/ccache_links/bin cd local/DIR/ccache_links/bin ln -s /usr/bin/ccache c++ ln -s /usr/bin/ccache cc ln -s /usr/bin/ccache g++ ln -s /usr/bin/ccache gcc * Add the following lines to your .bashrc

dvdavi

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

DVD to avi with multiple audio tracks and subtitles * Copy Dvd to harddrive if possible vobcopy -m -i /media/cdrom0/ -o . * Get chapter information dvdxchap -t 1 /dev/sr0 > chapters.txt * Get subtitles mencoder dvd://1//dev/sr0 -nosound -ovc frameno -o /dev/null -slang en -vobsubout sub.en

electronics

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Electronics Sensor voltage interfacing Coaxial cables

emacs

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Emacs Stuff This is my third try to get into emacs. Is difficult with all this keyboard related commands, but if you take it with love it kind of works. Configuring emacs to get some nice feature for programming with python sources: * Get emacs 22

encrypted_partition

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

dm-crypt LUKS cryptsetup -y -c twofish-cbc-essiv:sha256 luksFormat /dev/mapper/memelabs--de2-misc cryptsetup luksOpen /dev/mapper/memelabs--de2-misc misc-crypt mkfs.ext3 -b 4096 -E stride=8 /dev/mapper/misc-crypt echo "misc-crypt /dev/mapper/memelabs--de2-misc none luks,check=ext2,retry=1" >> /etc/crypttab echo "/dev/mapper/misc-crypt /misc-crypt ext3 defaults 1 2" >> /etc/fstab mkdir /misc-crypt update-initramfs -u -k all

flysky_fs-th9x

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

flysky_fs-th9x Reason to choose it: * Hackable (er9x) * Compatible with frsky DJT telemetry TX module * Cheap! * Can be hacked to accept frsky DJT telemetry. * Can accept additional slave controls. Improving your flysky fs-th9x: * Add backlight to LCD.

food

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Food This is in spanish. Receta de lengua en salsa * Cocinar la lengua en salsa en agua, hasta que la cascara se caiga sola. Quitar el pellejo, y la grasa. * Y la pica en tajadas. * Tomate, culatro, salsa lizano, achiote, curry, ajos picados, cebolla, especias.

fpv

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

FPV Use 1.2 GHz or 5.4GHz Video connector: Transmitter (BOSCAM TS-352 ) :

freestm32

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

freestm32 library I started a free gplv3 implementation of a library for the stm32 some time ago. I'm now putting here the code. What is implemented and tested is: * Clock management * GPIO module [download] A related project is here libopenstm32, some code has been contributed there.

game_console_emulators

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Game console emulators First gen * Magnavox Odyssey, 100, 200 - MESS * Tele-spiel es 2201 * atari/sear telegames pong * coleco telstar * nintendo color tv game Second gen * Fairchild channel f * atari 2600 (pac-man) - MESS stella z26 * magnavox odyssey -

games

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Interesting games * Diablo I, II, III * Final Fantasy I - XIII * Grand Theft Auto * Gran Turismo * Medal of Honor * Need for Speed * Quake * Resident Evil * Turok * Unreal * Tomb Raider * Super Smash Bros * Half-Life I, II

germany

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Germany tricks Disclaimer: Information here is not official in any way and we encourage you to search for the original sources. There may be no original sources sometimes. Steuererklärung To calculate how much travel expenses you have accumulated for the tax declarations:

git_gitosis

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Git+Gitosis To add a new repository to gitosis: * Go to your checkout directory of gitosis-admin * Add the following lines at the end: [group thesis-object-models] members = memeruiz@cheburashka writable = thesis-object-models * Make your git repo in the other computer (git init

gps_to_i2c_and_magnetometer_board

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

gps to i2c and magnetometer board (freegpsmag) This board consists on a gps connected to a stm32 using the serial port (uart), and a magnetometer (hmc5883L). We convert the nmea data from the GPS to an i2c binary protocol in a similar way that the i2c-gps-nav project. The magnetometer is just included in the board, connected to the same i2c bus.

harddrive_setup

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

2 x 3TB + GPT + Grub2 + RAID + LVM + ENCRYPTION The idea is to have two harddrives in mirror mode with complete system encryption. For each harddrive we need a BIOS boot partition with grub core.img stuff in them. They have to be configured and installed (in grub) in such a way that each harddrive can boot from itself. I have decided to have the swap partitions not in any RAID configuration. Each harddrive will have a separated swap partition, each swap will be encrypted with a random key. The…

hardharware_tricks

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Hardware Tricks Upgrading with all features the DSOX2002A osciloscope Method without LAN card using patched firmware * Download patched 2.50 firmware version from (filename 3000XSeries.02.50.2019022736_patched.zip): * Download license patched file from (v241_link_install.zip):

hibernate_from_a_non_activate_swapfile_from_btrfs

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Hibernate from a non activate swapfile from btrfs * Important! * This didn't work! It is not secure! When wiping happens, the file gets moved to another place by btrfs, then, this doesn't work for two reasons: 1) Wiping happens in other parts of the disk, and the offset changes and has to be updated in all configurations files after wiping everytime.

hobby_shops_and_links

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Hobby shops and links Stores Hong Kong Germany

imu

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

IMU information

investigacion

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Investigación Costa Rica Esta página reune una serie de dudas y cuestionamientos de como realizar investigación en Costa Rica. También da información en general sobre temas de investigación en Costa Rica, contactos, instituciones que proveen fondos para investigación.

io_apic_vbox

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

IO APIC and virtual box To enable smp in virtuabox guest, one has to activate io apic. It happens that the host machine and also the guest machine become very slow. Current solution is to disable io apic y smp. Yes it's faster! To disable io apic in an already installed windows guest:

kphotoalbum

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Configuraciones varias para KphotoAlbum Para exportar HTML: Directorio base de trabajo: Base Directory: file:///home/memeruiz/public_html/kphotoalbum Directorio para abrir en browser: Base URL: http://www.memelabs.net/~memeruiz/kphotoalbum/ Para preparar bien la exportación:

laser_cutter

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Laser cutter fslaser.com

latex

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Latex tricks Like usually the problem with Latex is that you can not be sure if some command will work inside some environment. Footnotes inside article titles They show instead of numbers, symbols, but in the page foot they show as numbers again. Also they get completely together with the next word in the title.

linux_tricks

Anonymous (anonymous@undisclosed.example.com) — 2024-08-05T07:29:49+00:00

Linux Tricks Useful commands * nethogs : Net top for processes * trickle : Process bandwidth limiter Howtos My Debian Install update letsencrypt certificates for wiki and ejabber Opening an encrypted partition with a keyfile mounting a degraded raid1 partition read-only SSD/HDD UEFI apache2 + dokuwiki + ssl + letsencrypt (certbot) + virtual hosts (2020) apache2 + ssl + debian + virtual hosts dvd -> avi with multiple audio, subtitles and chapter info How to force scsi rescanni…

lpc43xx_freedev

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

lpc43xx freedev Some notes to make a development board for the lpc4357 microcontroller. Design steps: * Add Processor crystal and RTC crystal * Add programming ports: JTAG, USART0, and ISP * Leave some jumpers or dip switch for the boot pins: P2_9, P2_8, P1_2, P1_1.

memelabswiki

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Memelabs wiki All the stuff goes here. :) Python Stuff we are selling/giving away Online-Stores Germany Prototyping Food Investigación Costa Rica projects Programming Linux Tricks Hardware Tricks Technical names and translations internal_pages

mounting_degraded_raid1

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Mounting a degraded raid1 partition read-only * Use mdadm examine to extract the offset of the filesystem: sudo mdadm --examine /dev/shirka_hdd/raid_root * Use the “data offset” value and multiply it with 512 to create a loopback device: losetup --find --show --read-only --offset $((2048*512)) /dev/shirka_hdd/raid_root * If you have to decrypt it remember to use cryptsetup luksOpen now

mplayer

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Mplayer tricks For running mplayer in multiple screens with xinerama use the following options: xineramascreen=0 fstype=none

multiboot_usb_key

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Multiboot usb key with 32 and 64bits debian installers and debian live Preparing the usb key * Create a partition table and make a fat32 partition that uses the whole usb key space. cfdisk /dev/sdb mkfs.vfat /dev/sdb1 * Install grub on the usb key

multiwiicopter

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Multiwiicopter I bought the Carbon SCARAB YSiix v2 - full ARF Multiwiicopter. You can find product information here: This product comes without some other necessary things to be able to fly it. The problem is that there are a lot of choices for the different extra components. My main goal is to build a multicopter that is stable in wind, can carry a big good camera (Nex-3/5/7), long flying time, long range, telemetry (for monitoring temperature,…

newer_raspberry_pis_with_older_sd_cards_and_distributions_without_support

Anonymous (anonymous@undisclosed.example.com) — 2024-07-29T17:01:51+00:00

Newer raspberry pis with older SD cards and distributions without support General method for changing the kernel in any RPi SD Card The general methodology is as follows: * Get the RPi booting files from an official source. This should contain the kernels, dtbs, start.elfs overlays, kernel modules and many more.

nvidia_suspend_support_2020

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Nvidia suspend support 2020 * Remember to change TemporaryFilePath=/run nvidia kernel option to a directory that has enough space to contain the whole video memory. * Remember to change NVreg_PreserveVideoMemoryAllocations to 1.

online-stores

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

On-line stores Germany: China: Electronic components farnell digikey future electronics arrow electronics jameco mouser newark

open_encrypted_partition_keyfile

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Opening an encrypted partition with a keyfile * If you suspect that a partition requires a keyfile instead of a passphrase to open check the file: cat /etc/crypttab * A line like this will indicated such situation: shirka_ssd-cache-decrypted UUID=43xxxca6-xxxx-xxxx-xxxx-062a3cc5acee crypt.key luks,discard

openembedded

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Openembedded angstrom openzaurus

openzaurus

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Openzaurus 3.5.5 compiling * Si desea compilar una versión diferente de kernel debe recontruirse también el package de la imagen (bootstrap-image)

otros_copteros

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Otros copteros

overclocking_amd_phenom_tm_ii_x4_945_processor

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Overclocking AMD Phenom(tm) II X4 945 Processor My motherboard is an Asus M3N-H/HDMI BIOS Revision 2603. I bought a huge Scythe Ninja 3 cooler. RAM is DDR2-667 BIOS configuration: * CPU Volt: 1.45V * CPU Mult: 15x * CPU Freq: 240Mhz * DRAM Freq DDR2-533

paparazzi

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Paparazzi

partition_size

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Cambio de tamaño de particiones y sistemas de archivos Para reducir Para una partición encriptada (loop-AES) que está dentro de un LVM * umount /misc - reiserfs solo puede reducir particiones no montadas. * losetup -F /dev/loop0 - Hace visible la partición desencriptada en /dev/loop0 , se fija en /etc/fstab buscando la palabra /dev/loop0. Pide la clave de la partición.

pcb_board_tricks

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

PCB board tricks Tutorials KiCad Quick component builder eagle converted to kicad already 2D and 3D models, a lot: Good tutorial Automates creation of footprints

pmsm_motor_controller

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Permanent magnet synchronous motor controller Microcontroller stm32

programming

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Programming bash C * With GCC one can do inline functions (useful with microcontrollers). . Useful gcc command line: -Winline * GCC_EXEC_PREFIX . For defining the GCC executables prefix Makefiles * Targets without prerequisites are called phony targets (clean target)

projects

Anonymous (anonymous@undisclosed.example.com) — 2025-03-09T06:43:45+00:00

Projects Surveillance Camera RaspberryPi Zero W Surveillance Camera RaspberryPi 5 and Dual camera Serial/JTAG/SWD programming gps to i2c and magnetometer board lpc43xx freedev Quadrocopter freestm32 library Toshiba gigabeat f20 SD card modification Things to buy Scientific visualization for python PCB board tricks Laser cutter Electronics Software projects

prototyping

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Prototyping * CNC * Plastic: Shapeways () shapelock () Ultimaker Ultimaker costa rica costs laser cutters fslaser.com ulsinc.com 3d printer laser

python

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Python Important things to know in python: How to read command line arguments Simple approach import sys print sys.argv # this is an array containing all command line arguments inclusive the program name OptParse from optparse import OptionParser parser = OptionParser() parser.add_option("-f", "--file", dest="filename", help="write report to FILE", metavar="FILE") parser.add_option("-q", "--quiet", action="store_false", dest="verbose", default=True, …

quadrocopter

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Quadrocopter paparazzi Baro IMU information Antennas Accelerometers and gyros Multiwiicopter PMSM motor controller Tranceivers batteries Hobby shops and links FPV Otros copteros

red_pdf

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Reducing pdf file size If a pdf contains pictures (jpeg, jpg), the final pdf file can be very big. Usually people have some problems sending or receiving this huge files in their emails. To reduce this size and still get a pdf that has printing quality use:

ros

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

ROS Introduction * Read the documentation here: Installation * Take an overview of the installation instructions from here: * Install rosinstall: sudo easy_install -U rosinstall * Create a directory where you want to store ros: cd local/src mkdir ros

sata_restart

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

SATA/SCSI restart Look at dmesg to know which scsi bus is the one that corresponds to the sata channel. scsi5 : ahci Then execute: echo "0 0 0" > /sys/class/scsi_host/host5/scan To disconnect a sata disk first umount all filesystems and then do: echo 1 > /sys/block/sda/device/delete

scientific_visualization_for_python

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Scientific visualization for python: VisPy VisPy features: * You control the main loop. (VisPy uses pygame) * OpenGL 3D. * Integrated library for basic geometric shapes: triangles, cylinders, cones, arrows, spheres, bars (box), disks, lines)

scientific_vizualization_for_python

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

sdcard

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Toshiba gigabeat f20 SD card modification It is possible to put an SD card on a toshiba gigabeat F20 mp3player while using rockbox with one limitation. Procedure * Remove your old damaged harddrive. * Buy an toshiba 1.8“ 50pin to CF adapter:

security_camera_with_raspberry_pi_zero_2_w_arducam_v3_16mp_autofocus_imx519_motion_and_motioneye

Anonymous (anonymous@undisclosed.example.com) — 2024-08-07T01:44:46+00:00

Security camera with Raspberry PI Zero 2 W, arducam v3 16MP autofocus (IMX519), motion and motioneye Features * Official Raspberry PI OS lite (bookworm) 64bit (for Raspberry PI Zero 2 W * motion 4.6.0 * Using Arducam 16MP autofocus IMX519 camera

serial_jtag_swd_programming

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Serial/JTAG/SWD programming

shared_pulseaudio

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Network sharing of Pulseaudio * Install paprefs * In paprefs activate: Network Server-> Enable network access to local sound devices Network Server-> Allow other machines on the LAN to discover local sound devices Network Server-> Don't require authentication

software_projects

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Software Projects play-mpv-compress-h265 * First you have to create a m3u playlist with your favorite program. * Then run my-mpv to create a my-mpv playlist file: my-mpv -w 1980 -v 1080 -c mpv_conf_file -p playlist.m3u * Then you have to create a trained svm. For that you can use: train_img_info_classifier or the same compress-h265 with -t option (usage instructions missing)

ssd_hdd

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

SSD/HDD Trucos de optimización con un disco duro ssd (128GB) y un disco duro mecánico (hdd) (1TB) en una nueva laptop. Se logra: - Alta velocidad - Alta disponibilidad - Disponibilidad de mucho espacio - Evitar daño por escritura excesiva al ssd - Bajo consumo energético

starcraft

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Star Craft + Wine + AMD64 + Debian * Instalar los paquetes wine wine-utils libwine-gl * Configurar wine con winecfg * Configurar el sonido con OSS (no usar alsa). Esta configuración es necesaria con la versión de wine 0.9.31. * La configuración de la aceleración de hardware debe estar en Emulación.

stm32

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

STM32 Important facts about the stm32 in general and for programming it * Multiple external pins can be associated to interrupts * Clock must be initialized by software. The stm32 is able to detect a failure of the external clock and fall-back on the internal clock and issue an interrupt. Connect this to a red led! Blink a special pattern to indicate this condition. Use time measurement that adjust to the different cpu clocks by reading from the clock source register?

stuff_we_are_selling_giving_away

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Stuff we are selling/giving away/ Verkaufen/verschenken! All items are to pick up yourself. Alle Artikel nür Abholung! Please check constantly because we may add more stuff! Items already reserved will be removed from the list. Address: Garching bei München (exact information, please ask per email)

surv_camera_2

Anonymous (anonymous@undisclosed.example.com) — 2025-03-16T19:07:17+00:00

Surveillance Camera RaspberryPi 5 and Dual camera Hardware * Raspberry PI 5 * 2x Raspberry PI Camera V3 * 2x Raspberry PI Camera Cable for Zero * Solar Panel (25Watt, 12V (nominal), 17.8V Max * Solar Charge Controller (10Amp) (12/24V) *

surv_camera

Anonymous (anonymous@undisclosed.example.com) — 2024-04-09T23:31:01+00:00

Surveillance Camera with RaspberryPi Zero W]] Hardware * Raspberry PI Zero W * Raspberry PI Camera V2.1 NOIR * Raspberry PI Camera Cable for Zero * Solar Panel (25Watt, 12V (nominal), 17.8V Max * Solar Charge Controller (10Amp) (12/24V) *

technical_names_and_translations

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Technical names and translations barra(redonda) de metal, metal rod, rundmaterial, rundstange, aluminium profile barra(cuadrada o rectangular) de metal, metal bar, flat metal, vierkantstange, flachstange Terraja de roscar, tap and die, gewindeschneider

things_to_buy

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Things to buy 2.4GHz booster for quadrocopter: BS170 MOSFET for 9x backlight switch. Piezo speaker, vibrator motor: 9x speaker haptics mod: Velcro tape, and foam ta…

thisthefirst_title

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Hi to all on this page its content

time-lapses

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Time-lapses To create a time-lapse video using mencoder I use: mencoder -nosound -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell:autoaspect:vqscale=5 -vf scale=1400:1050 -mf type=jpeg:fps=20 mf://*.JPG -o time-lapse.avi

title_for_a_wiki_post

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

3HHd5L , [url=, [link=,

tranceivers

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Transceivers * Graupner MX-20. Supports a lot of channels. Allows to mix multiple receivers. Great for FPV and multiwiicopter. ppm. Expensive >400 * Futaba has 12 channel systems or more. ppm. Very expensive >500 * Hitec Aurora 9. 9 channels. Supports telemetry. ppm. 391

uefi

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

UEFI

ultimaker_costa_rica_costs

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Ultimaker Costa Rica printing costs Material costs *

update_letsencrypt_certificates_for_wiki_and_ejabber

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Update letsencrypt certificates for wiki and ejabber * Stop apache web server * Run sudo certbot --authenticator standalone --installer apache --pre-hook "service apache2 stop" --post-hook "service apache2 start" renew * Restart apache * Stop ejabberd

wetab

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Debian on Wetab * For booting put the magic number in the signature entry in the MBR of the usb key. The usb key needs to have a MBR in order to boot. * Can be install 32 and 64 bits debian versions. * Use kernel 2.6.38.2 from debian, works fine.

wiki_editing_title

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

sz3y2L , [url=, [link=,

wordpress

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Wordpress debian apt-get install mysql-server wordpress mysqladmin -u root password 'clave'cd /usr/share/doc/wordpress/examples/ ./setup-mysql -n wordpress blog.memelabs.net Luego ir a blog.memelabs.net y seguir las instrucciones de instalación. Cuando todo está listo ahora si podemos recuperar la antigua base de datos.

xfs_defrag

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

XFS Defrag xfs_db -r /dev/mapper/root if too defragmented, run: xfs_fsr -v /dev/root

zfs_recover

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Recovering files in ZFS This happened: I erased some file by accident. I wrote a bit of data later after that by mistake. You can use klennet ZFS recovery program [1] to scan the ZFS pool of disks and find out if your information is still there. Unfortunately, klennet's program is kind of expensive $400. There must be another way.

zfs_root_cache

Anonymous (anonymous@undisclosed.example.com) — 2021-02-01T05:55:15+00:00

Btrfs for root and ZFS for data with ssd cache We have the following hardware: * 1x 512GB nvme * 4x 3TB sata * 2x 5TB sata And we want the following: * Root on 200GB of nvme in mirror with another sata * Bios doesn't boot from nvme, then boot must be copied on all satas

Memelabs

accelerometers_and_gyros

angstrom

antennas

apache_dokuwiki_ssl_certbot

apache2_ssl_debian

apt_key_gpg

backup

baro

bash

batteries

btrfs

changeuuid_vbox

disk_errors_and_badblocks

dist_compilation

dvdavi

electronics

emacs

encrypted_partition

flysky_fs-th9x

food

fpv

freestm32

game_console_emulators

games

germany

git_gitosis

gps_to_i2c_and_magnetometer_board

harddrive_setup

hardharware_tricks

hibernate_from_a_non_activate_swapfile_from_btrfs

hobby_shops_and_links

imu

investigacion

io_apic_vbox

kphotoalbum

laser_cutter

latex

linux_tricks

lpc43xx_freedev

memelabswiki

mounting_degraded_raid1

mplayer

multiboot_usb_key

multiwiicopter

newer_raspberry_pis_with_older_sd_cards_and_distributions_without_support

nvidia_suspend_support_2020

online-stores

open_encrypted_partition_keyfile

openembedded

openzaurus

otros_copteros

overclocking_amd_phenom_tm_ii_x4_945_processor

paparazzi

partition_size

pcb_board_tricks

pmsm_motor_controller

programming

projects

prototyping

python

quadrocopter

red_pdf

ros

sata_restart

scientific_visualization_for_python

scientific_vizualization_for_python

sdcard

security_camera_with_raspberry_pi_zero_2_w_arducam_v3_16mp_autofocus_imx519_motion_and_motioneye

serial_jtag_swd_programming

shared_pulseaudio

software_projects

ssd_hdd

starcraft

stm32

stuff_we_are_selling_giving_away

surv_camera_2

surv_camera

technical_names_and_translations

things_to_buy