l5y

@l5y.tech

137 Followers 63 Following

security, privacy, peer2peer, operations. radio enthusiast.

"What can the bot do?" "The bot rescues robots using techniques like jumping, punching, and spin-attacking."
a large monitoring dashboard in the front with mesh metrics and live feed, in the back a banner reading critical decentralization and two small blackboards with information about frequencies and presets.
an activist climbing a ladder to put up mesh repeaters on top of a chimney.
A digital thermometer showing three values, current time 15:39:51, inside temperature 31.9 Celsius, and outside temperature 40.0 Celsius. In the background some indoor plants.
A gray eurobox full with stacked devices for LoRa communication. Heltec V4, Seeed T1000E, Thinknode M1. They all have little Meshcore stickers on to indicate firmware.
A stash of 200 LoRa mesh devices stacked on a wooden floor, in the appearance of an illicit market offer on the dark net. Left, in blue, 100 Heltec v4 devboards, in the middle 50 Seeed SenseCap T1000E, and right 50 Elecrow ThinkNodes M1. In front, 50 small 868MHz antennas.
A workshop toolbench wall with six small system-on-chip computers mounted and six LCD displays.
Two "friends of mine" who are sitting on a self-made stage in a hidden location doing pirate radio. On the table are several technical appliances like laptops, mixers, microphones, antennas, and a lot of cables.
A bit axe bitcoin miner from Germany, the nerd q axe plus plus. It comes with a 3d printed stand in orange and yellow, a large copper heat sink with bordeaux colored fan and a lilygo color screen showing the current hashrate and other metrics.
Two guys sitting on a roof behind an antenna pole, one of them is fixing a meshcore solar repeater with cable ties to the pole.
A radio device, Heltec V4, with 3D-printed case. It is running RNode reticulum firmware, you can tell from the lovely designed screen.
Screenshot of the latest release of "potato mesh" showing a chat panel with recent messages, a node list table view and a map with colored dots showing mesh nodes' positions.
Screenshot of the remote management over LoRa of my Linux native demo repeater showing public key and radio config, among others.
We used 3D printed stencils to assist solderimg the radials to the SMA connector.
The new league of laptops is the title of the testing magazine. It features a photo of an opened framework 12 laptop in pink and blue colors.
Rosemary plant close-up. You can see the leaves contain a large cover of clear ice from freezing rain.
Green low-altitude auroras dancing over some houses in the east of Berlin.
A photo of a Thinkpad X220 on a wooden table. In front of the laptop is a duplicate of the X220 keyboard framed in wood to be used as external mouse and keyboard. It is connected through a red USB cable.
Top view on a LILYGO T-Echo and T-Echo Plus. You can see the Plus variant has an additional back case containing the huge battery and a mental grip to attach it to things.
Screenshot of the web dashboard potato-mesh v0.5.7 showing the node map. Nodes are colored dots on a dark base map. You can see caught trace route requests rendered as dotted lines between the Meshtatsic nodes.
Photo of a transparent Casio F-91W watch with the display saying "hello" after first initialization.
Photo of a yellow book on a wooden table with the huge title in red "LINUX".
Screenshot of an Archlinux with i3 tiling window manager. It shows running the software sdrpp on 869.575MHz. You can clearly see two Meshtastic MediumFast packages spanning 250kHz bandwidth and four Meshcore packets much smaller.
Two sections of a newspaper stacked in a way that you see the page numbers 13 and 37 forming "1337" and a cup of coffee in the background.
Photo of the front cover of the German Make magazin. Topic: Introduction to Meshtastic. It shows an offline paper map and various handheld radio devices.
Screenshot of an Archlinux terminal writing an iso file to a DVD using growisofs.
Two dozen USB cables with colored labels indicating type and functionality of each labeled cable.
Screenshot of a Meshtastic node detail page rendering telemetry and environmental data such as battery level, channel utlization, or temperature and barometric pressure.
A USB-tester PCB connected to a USB-C cable. The LEDs light up for shield, ground, power (VBUS), data (D+/-), and power delivery (CC1/2).
Screenshot of Signal app offering a free and a paid cloud backup plan, but no longer showing on-device backups. They are now hidden further down a settings menu.
Photo of a Raspberry Pi in a large aluminum case that can fit a LoRa hat. On top you see an 868MHz antenna mounted, in the background a desktop with forest deskmat, keychron mechanical keyboard, and white bat audio playing on the screen.
Photo of a Thinkpad X220. On the screen you can see a waterfall display of a software-defined radio listening to Meshtastic packages. A blurred lock screen is supposed to hide the details of the desktop but the used SDR prints out the frequency and the received packages in such a size that it is clearly visible as numbers and red horizontal lines on the waterfall.
A SteamDeck with SteamOS in desktop mode, showing a terminal running a dd command to mirror the entire SSD. You can see a a lot of cables and power supplies in the periphery.
A Thinkpad X220 docked in a slice docking station that has an optical drive which is open containing a disk that reads "GTA2."
Booting the Thinkpad X220 now shows the coreboot logo splash screen instead of Lenovo's. The logo is a white rabbit running to the right on top of a coreboot wordmark on black background.
Blue spiralling neon lights show the way to the conference room number 6.