BEGIN:VCALENDAR VERSION:2.0 PRODID:-//39th Chaos Communications Congress//events in Hardware Hacking A rea -- Rear CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:events in Hardware Hacking Area -- Rear BEGIN:VEVENT SUMMARY:Meshcore & Meshtastic for Beginners DTSTART:20251227T140000Z DTEND:20251227T160000Z DTSTAMP:20260404T181352Z UID:4c1d21af-c627-42e0-9628-4aca00362125 CATEGORIES: DESCRIPTION:**Meshcore & Meshtastic for Beginners** \n \n**Materials cos ts**: \n€140 \n \n**Taught by** Retia / Kody & Brandon. \n \n**Work shop Itinerary**: Dive into the world of off-grid communications! In this introductory workshop\, you will receive a LoRa node and learn how to set up the Meshtastic firmware and connect to your regional mesh network. We will cover the basics of LoRa technology\, how to pair your node with your phone\, sending encrypted messages without cell service\, and understandi ng the mesh network topology. Perfect for anyone looking to build a resili ent\, grid-down comms device.\n \n**Registration**: \nBuy a kit at the H ardware Hacking Area to guarantee a seat\, or come by early! (And please d o arrive early\, regardless!) First come\, first served. \n \n**Links**: [Reserve Your Seat](https://retia.io/products/sec-t-2025-workshop-meshtas tic-for-hackers-set-up-configure-deploy-nodes-for-advanced-use-fri-12th-14 -45-16-30-copy)\n\n**Workshop Includes**: New Nibble Zero LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/meshcore-meshtast ic-for-beginners END:VEVENT BEGIN:VEVENT SUMMARY:39C3 LED badge -- SMD for Beginners (Day 1) DTSTART:20251227T163000Z DTEND:20251227T180000Z DTSTAMP:20260404T181352Z UID:7a4e71e7-52fb-4ac1-86b4-0ddb1889a39e CATEGORIES: DESCRIPTION:### 39C3 LED badge -- SMD for Beginners\n\n![39C3 LED badge](h ttps://usercontent.events.ccc.de/congress/2025/hub/usercontent/b/7dccaedbb 7ec/39C3badge.png)\n\nSurface Mounted Devices (SMDs) are small compared to Through Hole (TH) electronic components\, and have the reputation of bein g difficult to work with as a hobyist: Difficult to see and handle\, when you sneeze\, you loose them and you can not easily use them on 2.54mm rast er prototyping boards.\n\nSMD components are designed to be used in a refl ow soldering process where tiny dots of solder paste are applied to a Prin ted Circuit Board (PCB)\, after which the SMD components are "Picked and P laced" on the PCB\, after which the whole PCB is heated to the melting poi nt of the solder ("reflowing")\, actually completing the electrical conne ctions.\n\nThis workshop is aimed at showing you that the reputation of be ing difficult to work with is a bit undeserved\, and that you can also wor k with SMDs using just a regular soldering iron: With some simple tricks and a suitable selection of components (not the smallest possible)\, the v ast majority of people can successfully complete this project.\n\nBeing ab le to solder SMD projects using just a simple soldering iron will also hel p you develop some skills that are useful if you need to do "rework" on r eflow soldering projects. Reflow soldering is also not difficult to do as a hobbyist\, but requires a few more tools like a stencil to apply solder paste and either an oven or a hot plate to do the reflowing. It is\, howev er\, much quicker than soldering the parts one by one\, and can yield more professional looking\, cleaner\, solder joints.\n\nThe project is an elec tronic name-badge - You should write your name (or nick) on it and wear it . It contains 42 LEDs\, a microcontroller\, some support components and an InfraRed transmitter and receiver that allow it to communicate with other badges. When the badge detects the presence of other badges ("friends") n earby\, it will change its behaviour. It will not only interact with other 39C3 LED badges\, but also with TBD badges - come visit the TBD assembly at komona or https://tbd.camp\n\n![TBD badge](https://usercontent.events.c cc.de/congress/2025/hub/usercontent/e/d619de5f1be1/tbdbadge.png)\n\n### Co sts\nThis workshop is donation based. Materials costs are 2 euro per badge . Donations will go towards 1) covering costs of the badges\, 2) covering costs of running the hardware hacking area in general\, 3) covering costs of organizing TBD (see the TBD assembly at komona or https://tbd.camp)\n\n ### Registration\nThe number of participants per session is limited. First come\, first served. Either get a participation voucher beforehand or sho w up early (there may be places left).\nThere will be *numbered* paper vou chers available for each session some time in advance of each session. If you get a voucher and do not show up *before* the designated starting time \, someone else may take your spot. Please don't take multiple vouchers an d don't take vouchers if you don't actually plan to participate.\n\n### G etting a kit\nKits are part of the workshop and not for sale separately. Y ou can\, however easily source your own PCBs and parts and make kits yours elf because the design is MIT licensed open source.\n \n### Links\nhttps ://github.com/hackwinkel/39C3LEDbadge LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/39c3-led-badge-sm d-for-beginners-day-1 END:VEVENT BEGIN:VEVENT SUMMARY:Is That an Off-Grid Server in Your Pocket\, or Are You Just Happy to See Me? DTSTART:20251227T183000Z DTEND:20251227T200000Z DTSTAMP:20260404T181352Z UID:0b2b475d-0d63-4523-abd7-68afd92b75e2 CATEGORIES: DESCRIPTION:**Is That an Off-Grid Server in Your Pocket\, or Are You Just Happy to See Me?** \n \n**Materials costs**: \n€70 \n \n**Taught by ** Retia / Brandon. \n \n**Workshop Itinerary**: Learn how to host your own digital services on hardware small enough to fit in your pocket. Usin g the D1 Mini\, we will deploy a portable\, off-grid web server. You’ll learn how to host files\, chat applications\, or a captive portal that wor ks entirely independently of the internet. Great for digital dead drops or local emergency information sharing.\n \n**Registration**: \nBuy a kit at the Hardware Hacking Area or website to guarantee a seat\, or come by e arly! (And please do arrive early\, regardless!) First come\, first served . \n \n**Links**: [Reserve Your Seat](https://retia.io/products/39c3-wor kshop-is-that-an-off-grid-server-in-your-pocket-27-dec-19-30-21-00) LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/is-that-an-off-gr id-server-in-your-pocket-or-are-y END:VEVENT BEGIN:VEVENT SUMMARY:AI-tiny Blinkeshit3000 (SMD reflow for beginners) DTSTART:20251227T203000Z DTEND:20251227T233000Z DTSTAMP:20260404T181352Z UID:45e897ca-e6c0-4881-9a67-f10c55e99931 CATEGORIES: DESCRIPTION:**AI-tiny Blinkeshit3000 (SMD reflow for beginners)** \n \n* *Materials costs**: €25 - €40 \n \n**Taught by**: Swiss Mechatronic Art Society. \n\n**Device**: The Blinken3000 device is based on an ATTin y85 and 4x5 RGB LEDs and - thanks to a custom ATmel booloader - can be pro grammed via an 3.5mm audio jack.\n \n**Workshop Itinerary**: Using a sel f-etched PCB and lots of LEDs\, you get the chance to play pick & place ma chine\, before putting your device into the reflow oven to take care of th e soldering magic.\n\nAfterwards\, it's all about using AI to create fancy colour patterns and experimenting with different kinds of diffusors for s parkling light effects.\n\nNo soldering skills required. Some fine motoric skills needed for placing the components onto the PCB.\n\nNo programming skills required\, as we let AI do the heavy software lifting.\n \n**Regis tration**: Buy a kit at the Hardware Hacking Area to guarantee a seat\, o r come by early! (And please do arrive early\, regardless!) First come\, f irst served. \n \n**Links**: LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/ai-tiny-blinkeshi t3000-smd-reflow-for-beginners END:VEVENT BEGIN:VEVENT SUMMARY:Solder Your Own Meshtastic / Meshcore Node DTSTART:20251228T090000Z DTEND:20251228T103000Z DTSTAMP:20260404T181352Z UID:f438c615-13cb-42a8-8f0a-1732e072d6b9 CATEGORIES: DESCRIPTION:**Solder Your Own Meshtastic / Meshcore Node** \n \n**Materi als costs**: \n€130 \n \n**Taught by** Retia / Kody. \n \n**Worksho p Itinerary**: Anyone can build their own off-grid mesh communication fro m scratch! This beginner soldering class teaches you how to build your own full-featured LoRa mesh node from scratch. We will guide you through basi c through-hole and surface-mount soldering techniques to build a custom\, cat-shaped node! By the end\, you'll have a fully functional node you buil t with your own hands\, capable of running Meshtastic or Meshcore.\n**Note : This is a hardware assembly class\; advanced software configuration is c overed in the Meshcore classes.**\n \n**Registration**: \nBuy a kit at t he Hardware Hacking Area or website to guarantee a seat\, or come by early ! (And please do arrive early\, regardless!) First come\, first served. \ n\n**Workshop Includes**: Nibble Connect Unsoldered Kit LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/solder-your-own-m eshtastic-meshcore-node END:VEVENT BEGIN:VEVENT SUMMARY:Meshcore & Meshtastic for Hackers: Set up\, Configure\, & Deploy N odes for Advanced Use (Day 2) DTSTART:20251228T110000Z DTEND:20251228T130000Z DTSTAMP:20260404T181352Z UID:7e4eb253-efa9-43c2-a3f3-1f5e04cd2e6e CATEGORIES: DESCRIPTION:**Meshcore & Meshtastic for Hackers: Set up\, Configure\, & De ploy Nodes for Advanced Use** \n \n**Materials costs**: \n€140 \n \ n**Taught by** Retia / Kody. \n \n**Workshop Itinerary**: Meshcore is t he future! Worldwide\, Meshcore is overtaking Meshtastic as the regional L oRa mesh net of choice. Unlike Meshtastic\, Meshcore scales well and suppo rts reliable direct messaging. Meshcore is optimized for hackers\, develop ers\, or beginners who want deeper control. We will dive into Meshcore dif ferences\, setup and customization\, and how to utilize the Nibble’s Fli pper-Zero compatible expansion ports for sensors and peripherals.\n \n**R egistration**: \nBuy a kit at the Hardware Hacking Area to guarantee a se at\, or come by early! (And please do arrive early\, regardless!) First co me\, first served. \n\n**Workshop Includes**: New Nibble Zero LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/meshcore-meshtast ic-for-hackers-set-up-configure-d END:VEVENT BEGIN:VEVENT SUMMARY:Trigg - Build an Open-Hardware Portable Handheld Games Console DTSTART:20251228T133000Z DTEND:20251228T163000Z DTSTAMP:20260404T181352Z UID:32b28198-e9b8-41fd-b8ab-3d47d36042ec CATEGORIES: DESCRIPTION:**Trigg - Build an Open-Hardware Portable Handheld Games Conso le**\n \n**Materials costs**: \n€45 \n \n**Taught by** fablab|nk. \ n \n**Workshop Itinerary**:\nIn this 3-hour workshop you will build your own Trigg: an open-hardware portable handheld games console which runs til e-based games that can be coded and uploaded directly from the browser. Ch eck out the PDF build guide here: https://github.com/fablabnk/TriggWorksho p/blob/main/TriggBuildGuide.pdf\n\nTrigg is our version of the Hack Club S prig\, which we adapted into a through-hole soldering kit in the FabLab of our coding school 42 Berlin\, to teach soldering and basic electronics to coding students. Kits include a Raspberry Pi Pico (RP2040) and all compon ents (batteries and USB cable not included).\n\nOur workshop and build gui de will take you from the basics of soldering through to assembling\, sold ering\, flashing and testing your Trigg\, increasing your confidence as yo u go. After building\, come by to our assembly to code and flash your firs t game. Parent-child building teams are also very welcome. \n\n**Registrat ion**: \nBuy a kit at the Hardware Hacking Area to guarantee a seat\, or come by early! (And please do arrive early\, regardless!) First come\, fir st served. \n \n**Links**: \n[https://github.com/fablabnk/TriggWorkshop ](https://github.com/fablabnk/TriggWorkshop) \n[https://github.com/fablab nk/TriggWorkshop/blob/main/TriggBuildGuide.pdf](https://github.com/fablabn k/TriggWorkshop/blob/main/TriggBuildGuide.pdf) \n[https://sprig.hackclub. com/](https://sprig.hackclub.com/) LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/trigg-build-an-op enhardware-portable-handheld-game END:VEVENT BEGIN:VEVENT SUMMARY:noisio Levitation OSC Drone Synthesizer DTSTART:20251228T170000Z DTEND:20251228T190000Z DTSTAMP:20260404T181352Z UID:9ab78163-198b-4f84-b011-ea77e20bd86b CATEGORIES: DESCRIPTION:**noisio Levitation OSC Drone Synthesizer** \n \n**Materials costs**: \n€20 - €50 \n \n**Taught by** noisio. \n \n**Workshop Itinerary**: Solder yourself a synth from easy to peasy. This workshop wil l focus on the Levitation OSC\, but other noisio synths can be build in pa rallel.\nNo previous solder experiences are necessary.\n \n**Registration **: \nBuy a kit in the hours before the workshop at the Hardware Hacking Area to guarantee a seat\, or come by early! (And please do arrive early\, regardless!) First come\, first served. \n \n**Links**: https://noisio. de/boards/levitation-oscillator LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/noisio-levitation -osc-drone-synthesizer END:VEVENT BEGIN:VEVENT SUMMARY:Alwin/CircuitCircle SupaLoopa & Screamo DTSTART:20251228T193000Z DTEND:20251228T213000Z DTSTAMP:20260404T181352Z UID:58a54d69-1927-45df-aadf-b8c79ff2866d CATEGORIES: DESCRIPTION:**Alwin/CircuitCircle SupaLoopa & Screamo** \n \n**Mater ials costs**: \n€30 - €60 \n \n**Taught by** Alwin / CircuitCircle. \n \n**Workshop Itinerary**: \n \n**Registration**: \nBuy a kit at t he Hardware Hacking Area to guarantee a seat\, or come by early! (And plea se do arrive early\, regardless!) First come\, first served. \n \n**Link s**: LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/alwincircuitcircl e-supaloopa-screamo END:VEVENT BEGIN:VEVENT SUMMARY:Catware Python Sensor Playground DTSTART:20251228T220000Z DTEND:20251228T233000Z DTSTAMP:20260404T181352Z UID:c941a2a6-b484-423c-bf6e-2153898c9f0b CATEGORIES: DESCRIPTION:**Catware Python Sensor Playground** \n \n**Materials costs* *: \n€120 \n \n**Taught by** Retia / Arya. \n \n**Workshop Itinerar y**: Join us for a late-night coding session! We will be using the USB Nu gget to explore sensors with CircuitPython. This is a "playground" style c lass where beginners will learn to write easy Python scripts to interact w ith hardware buttons\, buzzers\, LEDs\, Lora radios\, and more! Whether yo u want to write a game\, a remote control\, or a utility\, this is the pla ce for beginners to learn Python on microcontrollers.\n \n**Registration* *: \nBuy a kit at the Hardware Hacking Area or on the website to guarante e a seat\, or come by early! (And please do arrive early\, regardless!) Fi rst come\, first served. LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/catware-python-pl ayground END:VEVENT BEGIN:VEVENT SUMMARY:Solder your very own IoT Pusheen Cat Lamp with WLED! (Day 3) DTSTART:20251229T090000Z DTEND:20251229T103000Z DTSTAMP:20260404T181352Z UID:8c4f8eb1-d568-418a-9586-2eb43be086c0 CATEGORIES: DESCRIPTION:**Solder your very own IoT Pusheen Cat Lamp with WLED!** \n \n**Materials costs**: \n€70 \n \n**Taught by** Retia / Michael. \n \n**Workshop Itinerary**: Build the cutest IoT device on the network\, an d defend your home Wi-Fi! You will solder a custom PCB designed to light u p and connect a Pusheen cat lamp. Once assembled\, we will flash it with W LED\, the industry-standard open-source software for controlling addressab le LEDs. You’ll leave with a lamp you can control from your phone to dis play rainbows\, fire effects\, and notifications. It also doubles as a Wi- Fi defender\, with firmware to detect and warn you of the presence of Wi-F i jamming attacks! \n \n**Registration**: \nBuy a kit at the Hardware Ha cking Area or website to guarantee a seat\, or come by early! (And please do arrive early\, regardless!) First come\, first served. \n\n**Workshop Includes**: Pusheen Kit (Custom PCB & 3d printed base) LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/solder-your-very- own-iot-pusheen-cat-lamp-with-wle END:VEVENT BEGIN:VEVENT SUMMARY:Meshcore & Meshtastic for Hackers: Set up\, Configure\, & Deploy N odes for Advanced Use (Day 3) DTSTART:20251229T110000Z DTEND:20251229T130000Z DTSTAMP:20260404T181352Z UID:b8a42a3e-ecbc-4f37-bf79-940cdfdb4fca CATEGORIES: DESCRIPTION:**Meshcore & Meshtastic for Hackers: Set up\, Configure\, & De ploy Nodes for Advanced Use** \n \n**Materials costs**: \n€140 \n \ n**Taught by** Retia / Kody. \n \n**Workshop Itinerary**: Meshcore is t he future! Worldwide\, Meshcore is overtaking Meshtastic as the regional L oRa mesh net of choice. Unlike Meshtastic\, Meshcore scales well and suppo rts reliable direct messaging. Meshcore is optimized for hackers\, develop ers\, or beginners who want deeper control. We will dive into Meshcore dif ferences\, setup and customization\, and how to utilize the Nibble’s Fli pper-Zero compatible expansion ports for sensors and peripherals.\n \n**R egistration**: \nBuy a kit at the Hardware Hacking Area to guarantee a se at\, or come by early! (And please do arrive early\, regardless!) First co me\, first served. \n\n**Workshop Includes**: New Nibble Zero LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/meshcore-meshtast ic-for-hackers-set-up-config_hq6s END:VEVENT BEGIN:VEVENT SUMMARY:Disarray Desnarler -- Build and flash your DIY Macropad DTSTART:20251229T133000Z DTEND:20251229T153000Z DTSTAMP:20260404T181352Z UID:4454740b-348f-460d-9e83-0a5e877b3303 CATEGORIES: DESCRIPTION:**Disarray Desnarler -- DIY Macropad** \n \n**Materials cost s**: \n€35 \n \n**Taught by** fablab|nk. \n The Desktopordnungsamt brings you "the world’s #1 DIY customizable digital desktop organizer wi th re-chaotization feature that looks cool on your desk."\nWe are Hillary\ , Julia\, and Urs — the makers\, programmers\, designers\, here to bring you this educational and fun kit. Contact us at ufogreeks@gmail.com with questions.\n\n**Workshop Itinerary**: \n \n​In this 2-hour workshop\, you are going to solder and flash your own macropad (aka. mini keyboard) a nd configure it to your personal requirements. No prior knowledge required . \n\n​While our initial goal was to help people discover workspace mana gement on their OS\, you can customize your macropad however you like: fav orite keyboard shortcuts\, launch your favorite apps with one button\, sof tware control\, or even as a MIDI (over USB) controller for your music equ ipment. *\n\n​Here is some details about the project: https://hackaday.i o/project/204536-disarray-desnarler\nIf you want to look into the build- o r codeside start here: https://github.com/ZenVega/disarray_desnarler_docs\ n**Registration**: \nBuy a kit at the Hardware Hacking Area to guarantee a seat\, or come by early! (And please do arrive early\, regardless!) Firs t come\, first served. \n \n**Links**: \n[Hackaday article](https://hac kaday.io/project/204536-disarray-desnarler) \n[Github docs](https://githu b.com/ZenVega/disarray_desnarler_docs) \n[QMK configs](https://github.com /ZenVega/qmk_disarray_desnarler/tree/main) \n[Insta](https://www.instagra m.com/the.not.so.distant.future/) LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/disarray-desnarle r-diy-macropad_uogd END:VEVENT BEGIN:VEVENT SUMMARY:Cat Got Your Password: Wi-Fi Self Defense For Beginners (Day 3) DTSTART:20251229T160000Z DTEND:20251229T180000Z DTSTAMP:20260404T181352Z UID:c43b6837-5cf8-47fd-93e8-6d50077d290d CATEGORIES: DESCRIPTION:**Cat Got Your Password: Wi-Fi Self Defense For Beginners** \ n \n**Materials costs**: \n€160 \n \n**Taught by** Retia / Nick & Ko dy . \n \n**Workshop Itinerary**: Cat got your password? In this class\ , you will use the Wi-Fi Nugget to learn how hackers attack wireless netwo rks - and how to stop them. We will cover evil QR codes\, extracting infor mation like work and travel history from personal devices\, Wi-Fi phishing attacks\, and how to detect hacking tools like Wi-Fi pineapples. Most imp ortantly\, you will learn how to use the Nugget to physically "foxhunt" fo r suspicious Wi-Fi devices and secure your own home network against these common threats.\n \n**Registration**: \nBuy a kit at the Hardware Hackin g Area or on the website to guarantee a seat\, or come by early! (And plea se do arrive early\, regardless!) First come\, first served. \n\n**Worksh op Includes**: Wi-Fi Nugget\, Class Coupon\, USB Cable LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/cat-got-your-pass word-wi-fi-self-defense-for-_nsam END:VEVENT BEGIN:VEVENT SUMMARY:Blonkenclick\, the ESP32 16 segment RGB blinken clock DTSTART:20251229T183000Z DTEND:20251229T213000Z DTSTAMP:20260404T181352Z UID:99713ed4-925a-467f-a15a-22d3e1687303 CATEGORIES: DESCRIPTION:**Blonkenclick\, the ESP32 16 segment RGB blinken clock** \n \n**Materials costs**: \n€35 or €47 \n \n**Taught by** mazzoo. \n \n**Workshop Itinerary**: \n \n solder a beautiful RGB realtime clo ck with temperature sensor.\n\n![blonkenclick showing temperature](https:/ /usercontent.events.ccc.de/congress/2025/hub/usercontent/p/72017369b458/bl onkenclick_time.jpg)\n\nit's a begginner to medium level soldering kit. bu t not a beginner's kit.\n\nit's made up of an ESP32 running micropython (o bviously you're free to run rust on an emulated 6502 if that's your kink!) and a RTC module and one of our large 6 digit digitus16 RGB displays of 1 6-segment displays. HW and SW are fully opensource in case you wonder =)\n \n[blonkenclick description](https://github.com/wenzellabs/blonkenclick)\n \n[digitus16 description](https://github.com/wenzellabs/digitus16)\n\n\n** Registration**: \nBuy a kit at the Hardware Hacking Area to guarantee a s eat\, or come by early! (And please do arrive early\, regardless!) First c ome\, first served. \n \n**Links**: LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/blonkenclick-the- esp32-16-segment-rgb-blinken-cloc END:VEVENT BEGIN:VEVENT SUMMARY:Build your own solar powerd Lora node DTSTART:20251229T220000Z DTEND:20251230T010000Z DTSTAMP:20260404T181352Z UID:49a38826-056a-4832-929a-3cf4b49712e9 CATEGORIES: DESCRIPTION:After three days of conference and talks\, what better ways to wind out the day than to get together in a relaxed atmosphere and try to build some hardware?\n\nThis workshop is intended for beginners who want t o learn how to build their own lora/meshtastic/meshcore/reticulum hardware . These little devices can be used to message each other and build a netwo rk utilizing only some small antennas without the need of internet or a ph one network. Together\, we will build our own solar powered outside LORA n odes that can be used with mesh software such as Meshtastic\, Meshcore or Reticulum without the need of a power outlet. We will bring the required p arts and an easy to follow "how to" manual. There will be little to no inp ut but we want to create a cozy atmosphere to come together to learn\, to solder and teach ourselfs how to create our own communication devices from scratch (well at least almost). We will start at 23:00\, feel free to sta y until you are done or finish in on your own time.\n\nEach node will cons ist of a solar panel\, a low power lora node (XIAO nRF52840 & Wio-SX1262 K it)\, batteries\, an antenna + other connecting components such as cables and a charging controller to make everything work together nicely. We have tried to keep the cost as low as possible so we used the cheapest compone nts we found\, for long term use you might want to upgrade some components .\n\nThere will be only a limited amount of seats available. Please come t o the hardware hacking area one hour (22:00) before this workshop starts t o get the hardware (35€\, cash preferred). This workshop is intended for beginners in Lora hardware and hardware hacking. Some previous soldering experience is helpful but not required.\n\nHow to guide: https://cryptpad. fr/code/#/2/code/view/u1VaqnWs0jvLT6qRDUipwyGw4G4xOmyqymF20y4gLvc/embed/pr esent/ LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/build-your-own-so lar-powerd-lora-node END:VEVENT BEGIN:VEVENT SUMMARY:Solder your very own IoT Pusheen Cat Lamp with WLED! (Day 4) DTSTART:20251230T090000Z DTEND:20251230T103000Z DTSTAMP:20260404T181352Z UID:ddd6b2da-8d5d-4fa7-a8ab-442265bee611 CATEGORIES: DESCRIPTION:**Solder your very own IoT Pusheen Cat Lamp with WLED!** \n \n**Materials costs**: \n€70 \n \n**Taught by** Retia / Michael. \n \n**Workshop Itinerary**: Build the cutest IoT device on the network\, an d defend your home Wi-Fi! You will solder a custom PCB designed to light u p and connect a Pusheen cat lamp. Once assembled\, we will flash it with W LED\, the industry-standard open-source software for controlling addressab le LEDs. You’ll leave with a lamp you can control from your phone to dis play rainbows\, fire effects\, and notifications. It also doubles as a Wi- Fi defender\, with firmware to detect and warn you of the presence of Wi-F i jamming attacks! \n \n**Registration**: \nBuy a kit at the Hardware Ha cking Area or website to guarantee a seat\, or come by early! (And please do arrive early\, regardless!) First come\, first served. \n\n**Workshop Includes**: Pusheen Kit (Custom PCB & 3d printed base) LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/solder-your-very- own-iot-pusheen-cat-lamp-wit_zgns END:VEVENT BEGIN:VEVENT SUMMARY:Cat Got Your Password: Wi-Fi Self Defense For Beginners (Day 4) DTSTART:20251230T110000Z DTEND:20251230T130000Z DTSTAMP:20260404T181352Z UID:f263cda8-9e1c-47cb-954d-eb54046cec5d CATEGORIES: DESCRIPTION:**Cat Got Your Password: Wi-Fi Self Defense For Beginners** \ n \n**Materials costs**: \n€160 \n \n**Taught by** Retia / Nick & Ko dy . \n \n**Workshop Itinerary**: Cat got your password? In this class\ , you will use the Wi-Fi Nugget to learn how hackers attack wireless netwo rks - and how to stop them. We will cover evil QR codes\, extracting infor mation like work and travel history from personal devices\, Wi-Fi phishing attacks\, and how to detect hacking tools like Wi-Fi pineapples. Most imp ortantly\, you will learn how to use the Nugget to physically "foxhunt" fo r suspicious Wi-Fi devices and secure your own home network against these common threats.\n \n**Registration**: \nBuy a kit at the Hardware Hackin g Area or on the website to guarantee a seat\, or come by early! (And plea se do arrive early\, regardless!) First come\, first served. \n \n**Work shop Includes**: Wi-Fi Nugget\, Class Coupon\, USB Cable LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/cat-got-your-pass word-wi-fi-self-defense-for-begin END:VEVENT BEGIN:VEVENT SUMMARY:Meshtastic for Flipper Zero DTSTART:20251230T133000Z DTEND:20251230T150000Z DTSTAMP:20260404T181352Z UID:75a7dc64-3519-47df-9cb8-6134334fecf1 CATEGORIES: DESCRIPTION:**Meshtastic for Flipper Zero** \n \n**Materials costs**: \ n€140 \n \n**Taught by** Retia / Kody. \n \n**Workshop Itinerary**: Combine the power of the LoRa Nibble with the Flipper Zero! In this speci alized class\, we will focus on the interoperability between your LoRa nod e and the Flipper Zero. Learn how to use the Flipper as a controller for y our mesh node\, display messages\, and send messages over the mesh network .\n \n**Registration**: \nBuy a kit at the Hardware Hacking Area or on t he website to guarantee a seat\, or come by early! (And please do arrive e arly\, regardless!) First come\, first served. **Note: Bring your own Flip per Zero if you have one\, though class content is accessible via the Nibb le screen as well.**\n\n**Workshop Includes**: New Nibble Zero (Flipper In terface Compatible) LOCATION:Hardware Hacking Area -- Rear URL:https://events.ccc.de/congress/2025/hub/event/detail/meshtastic-for-fl ipper-zero END:VEVENT END:VCALENDAR