RC hobby, RC Sailboats, RC Gliders, Computing and hackinghttps://guillaumeplayground.net/enhttps://guillaumeplayground.net/art-hobby-scalar-4-0m-f5j-build-log/https://guillaumeplayground.net/art-hobby-scalar-4-0m-f5j-build-log/Build log of the Art Hobby Scalar, a full-size 4.0 m F5J thermal glider: unboxing the kit, wing and tail work and servo installation, with photos.Mon, 10 Oct 2022 00:15:56 GMTrcGuillaumehttps://guillaumeplayground.net/bec-for-hv-servos-mini-560-quick-mod/https://guillaumeplayground.net/bec-for-hv-servos-mini-560-quick-mod/Turn a sub-$1 Mini 560 DC-DC step-down into a 4 A, 98%-efficient HV BEC for RC servos: add a 100k resistor to get 8.1 V from the 9 V version.Sun, 18 Sep 2022 10:26:07 GMTdriftgliderrcsailboatscaled gliderGuillaumehttps://guillaumeplayground.net/rm-szd-56-2-diana-2-build-log/https://guillaumeplayground.net/rm-szd-56-2-diana-2-build-log/Full build log of the Royal Model Diana 2 (SZD-56-2) 3.75 m scale glider: carbon reinforcement, redundant power and radio, electric conversion.Fri, 13 May 2022 17:14:35 GMTgliderrcscaled gliderGuillaumehttps://guillaumeplayground.net/wowstick-1p-on-steroid-mod-li-ion-18650/https://guillaumeplayground.net/wowstick-1p-on-steroid-mod-li-ion-18650/Mod the WowStick 1P electric screwdriver to run on a single 18650 Li-ion cell instead of 2 × AAA for much more torque, speed and runtime.Thu, 27 Jan 2022 21:03:04 GMTGuillaumehttps://guillaumeplayground.net/mate-x-battery-52v-15ah-tesla-21700-cells-diy/https://guillaumeplayground.net/mate-x-battery-52v-15ah-tesla-21700-cells-diy/DIY 52 V 15 Ah e-bike battery for the Mate X: 42 × 21700 cells (14S3P) in the original enclosure, no BMS, two 7S blocks, 3D-printed cell holders (STL).Thu, 23 Dec 2021 19:44:39 GMTbattery packelectric bikeGuillaumehttps://guillaumeplayground.net/harrier-build-log/https://guillaumeplayground.net/harrier-build-log/Build log of the Harrier F3F slope glider by Ian Mason and RGMCN, electrified: hidden servo horns, 3D-printed servo frames, SunnySky motor, settings.Fri, 11 Jun 2021 10:32:21 GMTf3f gliderrcf3fgliderGuillaumehttps://guillaumeplayground.net/sakura-d5-chassis-wheelbase/https://guillaumeplayground.net/sakura-d5-chassis-wheelbase/Sakura D5S RC drift chassis mod: carbon plates and drilled rails for an adjustable 250–262 mm wheelbase that fits any 1:10 body shell.Sat, 10 Apr 2021 14:14:29 GMTdriftrcsakuraGuillaumehttps://guillaumeplayground.net/125-wally-tango-build-log/https://guillaumeplayground.net/125-wally-tango-build-log/Scratch build of a 1:25 Wally 100 Tango RC sailboat (LOA 1219 mm) over 13 months: OpenSCAD design, composite hull, keel bulb, deck planking, sails and launch.Sun, 26 Apr 2020 09:28:01 GMTrcsailboatwallyGuillaumehttps://guillaumeplayground.net/willow-sor-build-log/https://guillaumeplayground.net/willow-sor-build-log/E-Willow Sor F3F glider build by Ian Mason: electric conversion with no added lead, redundant BECs and FrSky receivers, 450 W SunnySky power, photos.Mon, 30 Mar 2020 08:03:32 GMTf3f gliderf3x gliderrcf3xgliderGuillaumehttps://guillaumeplayground.net/e-schwing-corsa-build-log/https://guillaumeplayground.net/e-schwing-corsa-build-log/Electric Schwing Corsa 2.75 m F3x glider build on the e-Schwing fuselage: 3S 500 W power, redundant FrSky receivers and UBECs, servo frames, CG, photos.Sun, 09 Feb 2020 19:14:11 GMTf3x gliderrcf3xgliderGuillaumehttps://guillaumeplayground.net/rc-sailboat-phantom-1890mm-remodel/https://guillaumeplayground.net/rc-sailboat-phantom-1890mm-remodel/Remodel of a Phantom RC sailboat kit into a high-performance one-metre boat: reinforced hull, carbon mast and keel, mahogany planking, 3D-printed winch pulley.Tue, 19 Nov 2019 14:37:32 GMTrcsailboatGuillaumehttps://guillaumeplayground.net/rc-glider-config-redundant-esc-ubec-redundant-frsky-2-4ghz-900hz/https://guillaumeplayground.net/rc-glider-config-redundant-esc-ubec-redundant-frsky-2-4ghz-900hz/RC glider setup notes: redundant ESC/UBEC with Schottky diodes, dual FrSky 2.4 GHz + R9 900 MHz receivers, Taranis X9E pinout, voltage telemetry on A2.Tue, 03 Sep 2019 11:57:43 GMTf3x gliderrcGuillaumehttps://guillaumeplayground.net/devuan-debian-cache-with-varnish-4/https://guillaumeplayground.net/devuan-debian-cache-with-varnish-4/Set up Varnish 4 as a fast merged cache for Devuan, Debian, Ubuntu (incl. security) and CPAN repositories, with a full config.Tue, 23 Jan 2018 10:48:44 GMTdebiandevuancachevarnishGuillaumehttps://guillaumeplayground.net/proxmark3-hardnested/https://guillaumeplayground.net/proxmark3-hardnested/Crack, dump and clone a MIFARE Classic 1K with the Proxmark3: darkside for weak PRNG cards, sniff and hardnested attack for hard PRNG cards.Wed, 29 Nov 2017 01:10:02 GMTnfcproxmarkGuillaumehttps://guillaumeplayground.net/gh60-revchn-satan-with-hhkb-layout/https://guillaumeplayground.net/gh60-revchn-satan-with-hhkb-layout/Build and flash firmware for a GH60 RevCHN 'Satan' PCB with a Happy Hacking Keyboard (HHKB Pro 2) layout on Debian Linux, plus a third layer.Mon, 09 Jan 2017 02:10:48 GMTkeyboardgh60gh60 revchnhhkbGuillaumehttps://guillaumeplayground.net/android-dac-bit-perfect-playback-chroot-on-any-rooted-android/https://guillaumeplayground.net/android-dac-bit-perfect-playback-chroot-on-any-rooted-android/Bit-perfect playback to a USB DAC from a rooted Android phone: run Debian/Devuan with ALSA and MPD in a Linux Deploy chroot, leaving the phone's audio stack alone.Sun, 30 Oct 2016 14:56:27 GMTandroiddacdebianbit perfectGuillaumehttps://guillaumeplayground.net/huawei-usb-3g-modem-reset-linux/https://guillaumeplayground.net/huawei-usb-3g-modem-reset-linux/Reliably reset a Huawei USB 3G modem on Linux: a persistent udev symlink, xHCI USB bus rebind and an AT reset script with the right timings.Tue, 28 Jun 2016 10:27:03 GMTdebianubuntuGuillaumehttps://guillaumeplayground.net/update-crucial-ssd-firmware/https://guillaumeplayground.net/update-crucial-ssd-firmware/crucial-fw.pl: a Perl script that generates a GRUB menu to update the firmware of any Crucial SSD from Linux, without burning a boot CD.Sun, 28 Feb 2016 20:00:43 GMTdebianfirmwareubuntucrucialgrubssdGuillaumehttps://guillaumeplayground.net/ud-503-mpd-alsa-config-bit-perfect/https://guillaumeplayground.net/ud-503-mpd-alsa-config-bit-perfect/Bit-perfect Teac UD-503 playback on Debian: remove PulseAudio, then the exact ALSA asound.conf and MPD mpd.conf for a direct hardware output.Mon, 11 Jan 2016 21:54:53 GMTdacdebianalsampdteacud-503Guillaumehttps://guillaumeplayground.net/dvd-firmware-flash-linux/https://guillaumeplayground.net/dvd-firmware-flash-linux/Flashing a region-free patched firmware to an LG GGW-H20L Blu-ray/DVD drive from 64-bit Linux, using MediaCodeSpeedEdit — with the pre-patched YL07 file.Sat, 09 Jan 2016 02:22:41 GMTGuillaumehttps://guillaumeplayground.net/teac-ud-503-ud-501-snd-usb-audio-patch/https://guillaumeplayground.net/teac-ud-503-ud-501-snd-usb-audio-patch/Linux snd-usb-audio kernel patch (merged upstream in 4.5) fixing Teac UD-503 / UD-501 freezes on format and rate changes, enabling bit-perfect playback.Sun, 03 Jan 2016 12:16:51 GMTdacdebianubuntubit perfectkernelGuillaumehttps://guillaumeplayground.net/mpd-mpc-fade-in-out-script/https://guillaumeplayground.net/mpd-mpc-fade-in-out-script/mpc-fade: a shell script to fade MPD volume in (wake up) or out (sleep) on any Linux with mpd and mpc, restoring volume and playlist.Thu, 30 May 2013 21:23:25 GMTmpdGuillaumehttps://guillaumeplayground.net/mpd-teac-ud-501/https://guillaumeplayground.net/mpd-teac-ud-501/Moving my MPD bit-perfect setup from a Micromega MyDac to the Teac UD-501 DSD DAC: first impressions and Linux configuration.Sun, 12 May 2013 13:45:36 GMTallwinner a10dacubuntuGuillaumehttps://guillaumeplayground.net/mele-a2000-ubuntu-12-10-armhf-nand-xbmc/https://guillaumeplayground.net/mele-a2000-ubuntu-12-10-armhf-nand-xbmc/Ubuntu 12.10 armhf image for the Mele A2000 with kernel 3.0.42++, latest Mali driver, SATA and XBMC; NAND install via PmM.Thu, 04 Apr 2013 02:20:53 GMTallwinner a10armubuntuxbmcGuillaumehttps://guillaumeplayground.net/audiophile-a10-bit-perfect-player/https://guillaumeplayground.net/audiophile-a10-bit-perfect-player/An Allwinner A10 (Mele A2000) bit-perfect music player with MPD, LIRC remote, display, and linear regulated power supply — schematic and photos.Mon, 04 Feb 2013 00:44:18 GMTGuillaumehttps://guillaumeplayground.net/3-0-42-tuned-sources/https://guillaumeplayground.net/3-0-42-tuned-sources/Source tarballs (with MD5 sums) of the tuned Linux 3.0.42 kernel used in my Mele A2000 / Allwinner A10 Debian and Ubuntu images.Sun, 03 Feb 2013 23:52:17 GMTallwinner a10kernelGuillaumehttps://guillaumeplayground.net/mele-dac-mpd-the-perfect-bit-perfect/https://guillaumeplayground.net/mele-dac-mpd-the-perfect-bit-perfect/Use a Mele A2000 as a low-power bit-perfect audio player: MPD without resampling, NAS over NFS/CIFS, USB DAC (Micromega MyDac) — full config.Sun, 27 Jan 2013 17:27:01 GMTallwinner a10debianubuntubit perfectdacmpdGuillaumehttps://guillaumeplayground.net/mele-armhf-3-0-57-kernel-update/https://guillaumeplayground.net/mele-armhf-3-0-57-kernel-update/Kernel updates (3.0.42+ / 3.0.57+) for the Mele A2000 Debian headless and Ubuntu GFX images, incl. Mali driver and 1 GB RAM versions.Sun, 27 Jan 2013 16:25:56 GMTallwinner a10debianubuntukernelGuillaumehttps://guillaumeplayground.net/mele-a2000-headless-debian-wheezy-armhf-with-nand-install-v1/https://guillaumeplayground.net/mele-a2000-headless-debian-wheezy-armhf-with-nand-install-v1/Headless Debian Wheezy armhf image (kernel 3.0.42+) for the Mele A2000: full network stack, NFS server, easy NAND install and configurator.Thu, 01 Nov 2012 16:40:57 GMTallwinner a10debiana10melenandGuillaumehttps://guillaumeplayground.net/pimp-my-mele/https://guillaumeplayground.net/pimp-my-mele/PmM (Pimp my Mele), a Perl/dialog configurator for the Mele A2000: NAND install, graphics mode, MAC address and LED blink settings.Wed, 31 Oct 2012 10:34:03 GMTallwinner a10debiannandubuntuGuillaumehttps://guillaumeplayground.net/mele-a2000-ubuntu-12-10-armhf-base-with-nand-install-v1/https://guillaumeplayground.net/mele-a2000-ubuntu-12-10-armhf-base-with-nand-install-v1/Ubuntu 12.10 armhf image (kernel 3.0.42+, Xorg) for the Mele A2000 / Allwinner A10, with easy NAND install and the PmM configurator.Wed, 31 Oct 2012 09:34:45 GMTubuntumelenandGuillaumehttps://guillaumeplayground.net/mele-a2000-ubuntu-armhf/https://guillaumeplayground.net/mele-a2000-ubuntu-armhf/First (v0, deprecated) Ubuntu 12.10 armhf image for the Mele A2000 with kernel 3.0.42+ and NAND install — see v1 for the current version.Sat, 27 Oct 2012 19:13:06 GMTubuntumelenandGuillaumehttps://guillaumeplayground.net/a10linux-org-multi-uboot-backup/https://guillaumeplayground.net/a10linux-org-multi-uboot-backup/Backup of the a10linux.org multi u-boot (non-SPL) for Allwinner A10 boards such as the Mele A2000, saved after the a10linux GitHub was deleted.Tue, 23 Oct 2012 16:30:02 GMTallwinner a10a10ubootGuillaumehttps://guillaumeplayground.net/allwinner-a10-cluster-mele-a2000/https://guillaumeplayground.net/allwinner-a10-cluster-mele-a2000/Designing a low-cost, low-power ARM web server cluster from 16 Mele A2000 (Allwinner A10) nodes, aiming for full redundancy and remote power reboot.Tue, 25 Sep 2012 18:00:09 GMTGuillaume