Arduino

**BitDevs Bitcoin Socratic Seminar Berlin @ c-base Raumstation** Join us for our monthly interactive **[Bitcoin Socratic Seminar](https://bitdevs.berlin)** in Berlin! We’ll start with pizza and beer (sponsored by [Ordimint.com](https://ordimint.com)), followed by deep-dive discussions on the most interesting *technical* developments in Bitcoin from the past month. Participation by everyone is highly encouraged! Our goal is to foster lively discussion, knowledge sharing, and debate. In the weeks leading up to the event, participants gather topics such as: * New research papers * New BIPs and BOLTs * Network statistics * Technical blog posts * Mailing list and Delving Bitcoin threads * Pull requests and updates from key repos (Bitcoin Core, LND, Core Lightning, Eclair, BDK, rust-bitcoin, LDK, Electrum, …) Each topic is briefly introduced by our moderators and then discussed before moving on. The full list of links will be published at [bitdevs.berlin](https://bitdevs.berlin) 1–2 days before the event — please review them in advance to get the most out of the discussion. **Important details:** * This event is highly technical — best suited for those with a solid grasp of Bitcoin internals. Curious newcomers are always very welcome, but expect in-depth conversations (see the former topics at [bitdevs.berlin](https://bitdevs.berlin)). * Chatham House Rule applies: you may share what was discussed, but not who said it. No livestream, no photos, no recordings. * The evening begins with food and networking; people often stay after the seminar to keep talking. **Co-hosted by:** * [Felix](https://x.com/FelixWeis) * [Freerk](https://x.com/freerko) * [Fabian](https://x.com/fjahr) For background on the idea of BitDevs Socratic Seminars, see [this article](https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar).

**Hello every boardgame enjoyer!** We'll continue our weekly boardgame evenings every Wednesday in Drehmoment (Glasgower Str. 29, 13349 Berlin) from 19:00. You are all invited to join us! You can expect a lot of fun light games suitable for the location. We have a small library of games you are free to use (but you are also encouraged to bring your own). The games are fast so feel free to join any time! Gamers of all experience levels are welcome. Drehmoment is a classic Berlin bar, they offer varius drinks and have the best cocktails in Wedding. We have a big room in the back just for us. We are allowed to bring your own food and they have snacks for sale. A couple of ground rules that we take seriously: 1. We are guests at Drehmoment, please treat their staff with respect. 2. There is no entry fee but please support the bar by buying drinks or snacks while you are playing. 3. Be efficient in your seating and kind to other patrons. See you on Wednesday

Cuban salsa classes every Wednesday . Join us, learn how to dance, save lives and make friends! **Classes**: 19:00 - Absolute Beginners (For Free) 20:00 - Beginners 2 Due to exceptional circumstances, we have to cancel our Improvers 1 class (21:00-22:00) this Wednesday. The other classes happen as usual! **Price: (Card payment only)** 1 class - 7€ 10 class pass - 49€ or 42€ reduced* (To use within 11 weeks. Valid for all our classes. It can only be used by one person per class. No refund possible) * Reduced price for students, Schüler, Azubis, H4-Empfänger, and pensioners/retired folks. A valid proof is needed. **Why should you learn Salsa, and why with us?** - It's great fun! - You don't need any prior dancing experience. - You get to know loads of new people. - No registration, just swing by. - No fix starting date - you can start any week. - No dress code - come in whatever you feel comfortable in. Note:No outside shoes in the room: socks or a pair of clean shoes will be required - No partner needed - we change regularly during the classes (bring all your friends though!) - You can help us make a difference! **What is Salsa4Water**? Simple! We teach Salsa and donate all our profits to the NGO Welthungerhilfe, which uses these funds for their local projects in Malawi. Welthungerhilfe fights for equal access to safe drinking water, sanitation, and hygiene in nearly 40 countries world wide. This gives you the chance to save lives while dancing!

Welcome to the board game night in Zehlendorf. No matter if you like Carcassonne or Spirit Island, we have all sorts of modern board games in our collection and can give you a quick run through, so that you don't have to read through the rulebooks. But, of course, feel free to bring your favorite game too. It's a 1.5€ fee that goes to the Mittelhof e.V. association. Bring your drinks and snacks.

Join us for an open and collaborative meetup dedicated to OpenClaw and Nvidia Nemoclaw — the emerging ecosystem for AI‑driven automation and intelligent agent workflows. Whether you're already working with Claw agents, experimenting with the tooling, integrating automations into real systems, or just curious about what’s possible, this meetup is the place to connect. **What this meetup is about** A relaxed, open discussion space for topics such as: * Building and orchestrating Claw agents. * Best practices for running and scaling ClawdBot Integrations, workflows, and experimental setups. * Secure agent execution and sandboxing. * Tools, extensions, and community‑built add‑ons. * Troubleshooting, insights, and real‑world use cases. * Ideas about the future direction of the OpenClaw ecosystem. This is a topic‑open session — everyone is welcome to bring questions, demos, ideas, or challenges they’re working on. No slides or formal agenda required. Bring snacks or drinks if you like — completely optional. We’re excited to meet developers, tinkerers, researchers, and enthusiasts who want to explore the next generation of agent‑based AI automation together.

Join the Minotaurs Men's Basketball Team on Wednesday at 8pm at an indoor basketball court in Neukolln. We currently have two teams, one in Bezirkliga and one in FBL. We are looking for new players to add to the teams so come by to play together and meet. Please send a message to the event organizer if you are interested in coming.

Hola chicos, Moin zusammen, lasst uns Deutsch und Spanisch sprechen und ein paar Bier zusammen trinken, die Idee ist einfach und gut :) Bitte bringt zumindest basis Deutsch oder Spanisch Kenntnisse mit! Vamos a hablar español y alemán y tomar unas cervezas, la idea es simple y buena jaja. ¡Por favor, ven por lo menos con un nivel básico de español o alemán! Danke, gracias!

Unser Verein berlinCreators e.V. trifft sich jeden Freitag ab 18 Uhr im Makerspace. Wir haben Gruppen rund um Elektronik, 3D-Druck, Nähen, Programmieren, Retro Computer. Egal ob Anfänger oder Profi – hier seid Ihr Willkommen. Ihr könnt mit anderen fachsimpeln, Euch inspirieren lassen oder auch mit unserer Hilfe Eure ersten Projekte starten. Wenn Ihr Euch bei uns wohlfühlt und Mitglieder bei den berlinCreators werden möchtest, freuen wir uns. Kommt vorbei, lernt den Space, uns und die Möglichkeiten kennen.

Welcome to our cosy Godot Engine Community Meetup! This is not a structured meeting, but rather a friendly get-together. We will hang out, chat and maybe show some of our current projects! 🦜 Regardless if you are an artist, designer, programmer, beginner, hobbyist, professional or anything in between: join us for sharing knowledge, creating art together, coding together, joining game jams together and having fun! 🌼 This meetup will happen at [c-base](https://c-base.org), Rungestraße 20, 10179 Berlin. 🛰️ You can also join us on [our Discord Server](https://discord.gg/Sm3CgrqqQa). ☎️ Follow us on [Mastodon](https://mastodon.gamedev.place/@GodotUserGroupBerlin) for updates. 📢 Also check out [our website](https://godot.berlin). 🌐 Please be [excellent to each other](https://godotengine.org/code-of-conduct/)! 🕊️

Dear Friends, "**Aroundhome**" will be our host in April 2026! YAY! Address is: Potsdamer Platz 11, Berlin Our standard-text: Are you an agile practitioner and learner? A Problem-Solver, Scrum Master, Product Owner, Developer, Agile Coach or an awesome Manager? This is our space to learn together. Bring your challenge, opportunity or problem! Anything you want to share, practice or learn about! This afternoon will be all about learning through exchanging. We will create a list of topics and form small groups to work together in an open space format. Options include: * ask for help with a current situation * bring and practice a method or technique * practice coaching, where the coach and the coachee both learn this space is safe to fail! Happy to have you as a part of our awesome community! Your ALL crew: Alex & Simon

As the title suggests, this is a **casual get-together** for the **[Tech in Berlin](https://www.techinberlin.com/)**[ ](https://www.techinberlin.com/)community — no talks, no slides, no agenda. Just conversations and connections with people who are building, learning, or curious about tech. Whether you're a founder, developer, product manager, designer, student, or just exploring the tech space in Berlin, you’re welcome to join. **What to expect:** * Relaxed, informal atmosphere * Opportunity to **make new connections** * Space to **vibe code together** (the café has great Wi-Fi) * Share what you’re working on and **get feedback or fresh perspectives** * Open conversations about tech, startups, ideas, or anything in between **No agenda. No pitches. No expectations.** Just show up, grab a drink, open your laptop (if you want). If you’re new to Berlin, new to tech, or just want to expand your circle — this is a good place to start.

This is a 4 phase event. You can join at any time. 1.) 12:00 - 12:30 p.m.: Gathering at the meeting spot. 2.) 12:30 - 01:30 p.m: Using public transport together to Gärten der Welt. 3.) 01:30 - 05:00 p.m: Exploring Gärten der Welt. 4.) 06:30 - 09:00 p.m: Dinner at Kan'Koa (optional). This is the 18th cherry blossom festival and 23rd anniversary at Gärten der Welt. **Highlights:** cosplay event, music and dance performances, food stalls and much more! 💡\*\*Please buy the normal ticket (9 €) in advance to avoid the long queue at the main entrance. If you buy the the ticket on the day of the event the price will be raised to 12 €!\*\*💡 **How to buy the correct ticket:** [https://gruen-berlin.ticketfritz.de/en/Shop/Index/tageskarten-gaerten-der-welt-sommer/44086](https://gruen-berlin.ticketfritz.de/en/Shop/Index/tageskarten-gaerten-der-welt-sommer/44086) **More info and full programm here:** [https://www.gaertenderwelt.de/events/veranstaltungen/detail/2026-04-11_1000/kirschbluetenfest-2026/](https://www.gaertenderwelt.de/events/veranstaltungen/detail/2026-04-11_1000/kirschbluetenfest-2026/) **1.) How to the find the FOODFACTORY Cube Berlin (Effe&Gold):** Washingtonpl. 3, 10557 Berlin https://g.page/foodfactorycubeberlin?share Our meeting spot is inside right next to Effe&Gold. Frome there we go to the Gärten der Welt. **2.) Going to Gärten der Welt:** We'll use public transport to get to this place. If you live in the east, you can join us directly in the garden. **3.) Exploring Gärten der Welt:** The Hanami will be held near the Japanese and Korean garden. We will watch some of dance performances such as traditional chinese dragon dance. **4.) How to the find the Kan'Koa restaurant:** Oranienburger Str. 17, 10178 Berlin https://maps.app.goo.gl/DL5ifV3XzDSkJeAq6 This Asian restaurant has a cozy atmosphere which gives the opportunity to have meaningful conversations. They offer a good mix of Japanese and Vietnamese cuisine. I would recommend this to vegetarians as well as vegans. *Who is this meetup for:* 1\. Asians who want to practice German and/or English\. 2\. German speaking individuals who are studying \(preferably\) Japanese\, Korean\, Mandarin or Cantonese\. 3\. Anyone who is interested in cultural exchange and wants to socialize\. *What you can expect:* 1\. A professionally organized meetup that can adapt to any changes given the current situation\. 2\. A Walk & Talk to break the ice\. 3\. A collaborating venue where you can further socialize with other members\. *** Whenever you attend a meetup, the most common as well as first question you get is: "Where are you from?" You probably heard this question a million times. Well, at least I did. From my own experience of attending over 200 international meetups in various countries such as Germany, Japan, Australia and Thailand, I can tell you that asking for the name is a better approach. “A person’s name is to that person, the sweetest, most important sound in any language.” - Dale Carnegie If you really want to connect with like-minded people you should remember their name, but you don't have to remember every persons name you've talked you. Be picky about that, don't be me who can somehow remember everyones name easily. Don't tell yourself sth. like "I'm bad at remembering names." It's all about developing the habit of asking for a name and keep the conversation going on. Furthermore, you want to learn German or any other language. Learning the local language is crucial to connect with the locals and developing a true friendship. This can be accomplished with immersion. My goal is to inspire you to go out of your comfort zone and improve yourself each time you join this meetup.

An open Berlin meetup for anyone curious about personal AI and OpenClaw. We are bringing together people who want to explore personal AI in a practical, social, and low-pressure setting. Expect short live demos, Q&A, and relaxed networking with others who are building, testing, or simply curious. No gatekeeping, no paywall, no polished setup required. Scrappy demos, unfinished workflows, and honest questions are all welcome. **Language:** English or German, depending on the group **Demos welcome:** Bring what you are building, or just bring questions Whether you are already using OpenClaw or just want to understand what personal AI can look like in real life, you are very welcome. RSVP if you want to join, and feel free to comment if you would like to demo something. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Ein offenes Berlin Meetup für alle, die neugierig auf Personal AI und OpenClaw sind. Freu dich auf einen lockeren Abend mit kurzen Live-Demos, Q&A und viel Raum zum Netzwerken. Halbfertige Setups, Experimente und unfertige Ideen sind ausdrücklich willkommen. **Was dich erwartet** * Kurze Live-Demos * Offenes Q&A * Entspanntes Networking * Austausch über Personal AI und OpenClaw * Platz für praktische Ideen und ehrliche Einblicke **Sprache** Englisch oder Deutsch, je nachdem, was für die Gruppe vor Ort am besten passt. **Demos und Speaker willkommen** Wenn du an etwas baust, einen Workflow testen willst oder einfach etwas zeigen möchtest, bring es gern mit. Und wenn nicht, komm trotzdem vorbei.

- German below -
Please bring clean indoor shoes with you to the location <3 The event fee varies between 5 to 10 Euros. 
Hey You!
On this Friday I will teach you a few basic steps of shuffling. We will break down the steps, in your time, in your style.
We will explore your own flow of your body to different kinds of music and how we can use it in shuffling. I want to create a safe space for everyone who is just starting their shuffle journey or is already on the path. 
Address:
Milastraße 4
10437 Berlin
“Aziza-tanzt Tanzschule” 
Hallo Du!
Diesen Freitag möchte ich Dir ein paar Basic-Schritte vom Shufflen zeigen. Wir werden die Schritte langsam durchgehen, in deiner Zeit, in deinem Tempo.
Wir werden den eigenen Flow entdecken und wie Du deinen Körper zu verschiedner Musik im Shufflen integrieren kannst.
Ich möchte für jede Person einen Safe-Space erschaffen, egal ob Du ganz Neu bist oder schon etwas gelernt hast. 
Adresse:
Milastraße 4
10437 Berlin
“Aziza-tanzt Tanzschule”

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Thanks for being a part of the CABS Meetup Group! We meet @ the COFFEE UNDERGROUND on Indianola Avenue. We play many different games @ CABS - bring your own or play one of the OVER 2000 in our library. What are your favorite games? What was the last game you played? Hope to see and game with you soon! Check us out on Facebook! Doors open early on Saturday Mornings at 10am and around 4pm on Fridays if you are interested in learning new / simpler games ... or new to the hobby or just want to check us out come in early just after noon and we will show you around before the crowd grows. Stay for a game or two, an hour or two or for the day! Your first visit is free and after that it's $5 a meeting or you can join for the year! It's Your Move

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

This week is Twos-day on a Wednesday. Bring your favorite 2 player games and be ready to teach some and learn others. We'll bounce around and get to know new people and new games. Think speed dating but without the stress, romance or dating! And we don't judge, if you'd prefer to stick to bigger games by all means, go for it! The Forge does have a full bar and kitchen. There is no cover charge but they do request all attendees to purchase a minimum of ~$20 per person. Soft drink refills are $1 each. Please support our hosts so we can continue to provide great events for the group! The Forge has a large library of games available for us to enjoy. Hosts and regulars will also provide numerous popular games but please bring any games you would like to teach and/or play. Doors open at 6, and we expect gaming to be rolling by around 630. Please promptly end your games and clear out the space at 10pm when the bar closes. We encourage socializing but do not permit disruptive behavior of any kind. Thank you for your continued commitment to providing a fun and welcoming space to veteran, newbie, and rookie gamers in the Columbus area. Parking can be challenging. There is a parking lot behind the neighboring Mexican restaurant that is free and easy to walk from but it's a bit hidden.