Software Defined Radio

Want to mess with some electronics? Or perhaps contribute to HacDC's main group project? HacDC's latest event brings hardware projects to the community. We will focus primarily on the main project (Space Blimp!) but please feel free to bring some of your own projects to show off and work on!

WOW can you believe it's been a full year since we started DC Polyam?! To thank you all from the bottom of our hearts, we are hosting our one-year anniversary celebration on Thursday, May 28th, at Easy Tiger Tavern. Come by yourself, invite your friends, come with your polycule, the more the merrier! We want to celebrate with you, and we look forward to seeing all of the regular and new folks there! 🎊🍾 We always enforce a set of house rules in order to maintain a safe space: * **Respectful Behavior** towards hosts and other guests is required; anyone who violates these rules may be asked to leave the event. * **Expectations:** Check your expectations at the door. Being at this event does not signal sexual availability or indicate any aspect of sexual orientation. Our events are about developing friendships and connections within the community. This is a no cruising event, in order to maintain a comfortable atmosphere for our guests. * **Safe Spaces:** We strive to create a safe space for people of ALL identities, including those who do not identify as polyamorous. * **No photography, video, or recording** of any kind is allowed **without prior verbal consent** of all parties involved. * **Verbal Consent:** Please be sure to ask and wait for a yes before hugging or initiating any physical contact, and encourage each other to speak openly about consent and personal boundaries. This helps foster a culture where personal boundaries are supported and attendees are empowered to speak confidently of their limits. (i.e. “Can I give you a hug?” “No thank you, but I would love a handshake.”) If you have any questions please feel free to reach out!

Have you been thinking about trying self-defense training, but do not want a loud, aggressive, or overly competitive environment? This free intro class is a simple way to get started. Maryland Systema offers practical self-defense training for adults in Takoma Park with a focus on movement, awareness, breathing, posture, and calm under pressure. This class is designed for beginners and first-timers who want real-world self-defense training in a welcoming setting. You do not need experience. You do not need to be in top shape. You do not need a martial arts background. You just need to show up ready to learn. This is not a sport-based class built around winning points, memorizing routines, or trying to look impressive. It is a more practical approach to adult self-defense training that helps you stay balanced, aware, and functional when things feel uncertain. If you have been searching for self-defense classes in Takoma Park, beginner self-defense near you, or practical self-defense training for adults, this class is a good place to start. **What you will work on** * Breathing and staying calm under pressure * Movement that improves balance and mobility * Awareness and posture * Simple partner drills * Practical self-defense training for beginners **Who this class is for** * Adults new to self-defense training * Beginners looking for a low-pressure class * People who want practical self-defense instead of sport martial arts * Adults in Takoma Park, Silver Spring, Rockville, and nearby areas looking for realistic self-defense classes **What to wear** Please wear comfortable workout clothes. No uniform is required. **Why start with this class** This free intro class gives you a chance to experience the training, meet the group, and see whether Maryland Systema is the right fit for you before joining regular weekly classes. **RSVP** Reserve your spot and come try a beginner-friendly self-defense class in Takoma Park.

Montgomery County MD Real Estate Investors, Agents and Professionals! We just launched a Cash-Flow Breakfast Club for your area! This is the most unique real estate investor club, education, networking and mastermind event in the US! **Join us for our official launch event for Montgomery County MD on May 28.** **This is a 12 part education series with new topics every month. This event is session 1 of 12!** **This event is free but has very limited seating and we are limited to the first 50 to RSVP! Join us and become a founding member of this amazing community!** **Very limited seating. In-person only.** **Make sure to RSVP today to reserve your spot.** **When: May 28, 2026 @ 5:45pm - 8:00pm EST** **Where: Twinbrook Library** **202 Meadow Hall Dr, Rockville, MD 20851** The Cash-Flow Breakfast Club is NOT just a meet up. It’s the most unique Real Estate Investor Community of Mentors, Coaches & Masterminds. A community of growth oriented, abundance mindset, go-giver individuals with a BARE MINIMUM commitment to become financially free through real estate investing. We focus on providing education and building networks to help every member solve their cash-flow freedom equation, so they can have the time-freedom needed to follow their passions, make a lasting impact and even change the world! The unique format of this event, which consists of high-level education, gamified networking, mastermind breakout sessions, case studies, group deal analysis, market deep dives, and peer-to-peer coaching facilitation makes this the most impactful local real estate investor group a real estate investor can be a part of. The foundation of the group is built around the belief that everyone in the room has the potential to change the world… however most of us never have the time, energy or financial situation to even dare to dream big enough. Most of us have passions that will never be followed, amazing businesses or ideas that will never be pursued… unless we can solve the Cash-Flow Freedom Equation, which ultimately leads to Time-Freedom. Once that happens it is usually much easier for us to think bigger, dream bigger, be bigger. · 🤯 Learn more about the Cash-Flow Breakfast Club [HERE](https://cashflowbreakfastclub.com/) · 🥇 Get in the VIP List to be notified about the next event in your area [HERE](https://the.cashflowbreakfastclub.com/VIP) · 🤙🏼 Learn more about Launching your own Cash-Flow Breakfast Club Location [HERE](https://cashflowbreakfastclub.com/launch-your-own-club/) · 🤝🏼 Learn more about becoming an Affiliate-Sponsor at one of our club locations [HERE](https://cashflowbreakfastclub.com/affiliate-sponsors/) · 📷 View photos and videos of some of our recent events [HERE](https://cashflowbreakfastclub.com/about-the-cash-flow-breakfast-club/) · 😎 Looking to represent? Browse Cash-Flow Breakfast Club apparel and fly swag [HERE](https://cashflowbreakfastclub.com/shop/)

**CHRONICLES:** **REGISTER** your character to aid in promptly and accurately reporting the session. You'll receive your chronicle sheet by email: https://www.rpgchronicles.net/session/95252827-c943-4a69-b241-60909752851f/pregame **VENUE NOTE:** Games & Stuff charges **$10 for admission** to the game room. You get this money back as store credit. If this event has five or more player sign-ups, we will investigate reserving the private game room instead. **PLEASE** sign up for the **waitlist** as well; this informs us of interest and allows us to plan for additional tables/GMs. Also, **if you cannot make it**, please drop out as soon as possible to allow others to move up on the list. **SYNOPSIS:** A Starfinder Society Scenario designed for 1st- through 2nd-level characters, playable in 2-3 hours. A few weeks ago, a massive alien starship emerged from deep space and crashed into the planet Akiton. Within hours, the starship’s automated defenses activated, unleashing dangerous monsters and magical effects into the region. This starship was soon dubbed the Wreck of the Returned. Believing the Wreck of the Returned has a connection to the mysterious First Ones, an advanced civilization from antiquity, and is but the first step in a devastating invasion of the Pact Worlds, the Starfinder Society establishes a lodge in the surrounding Sloughscar Hills. The leader of the Starfinder Society, First Seeker Sarmak, needs brave Starfinders to help establish and defend this fledgling lodge, explore the Wreck of the Returned, and prevent the First Ones from invading the Pact Worlds. Welcome to Invasion’s Edge, the first season of Starfinder Society for Starfinder Second Edition! Written by Michael Bramnik.

• What we'll do On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....

The Cover6 Community's in-person meetup is back — round three, and we're keeping it exactly where it should be. We're downstairs this time — right by the bar. No conference room, no roped-off section upstairs. Just the right amount of space for real conversation, and drinks already there if you want one. What to expect: • Pure open networking — no agenda, no presentations, no slides • Three hours to connect, catch up, and build real relationships • Genuine conversations with practitioners, newcomers, students, and professionals from across the industry • Good energy, familiar faces — and plenty of new ones When you walk in, skip the elevator. Head straight to the bar and you'll see me close by. Who should come: Anyone in or entering the cybersecurity space in the DMV. It doesn't matter if you've been in the industry for 20 years or you're still studying for your first cert. You belong here. Bring a friend — the more the merrier. Tag someone who needs to be in this room. 📍 AC Hotel by Marriott Arlington National Landing 1999 Richmond Highway, Arlington, VA 22202 (Metro accessible — Blue/Yellow Line, Crystal City Station) We're downstairs — look for us by the bar. 📅 Thursday, May 28, 2026 🕕 6:00 PM – 9:00 PM RSVP so we know how many people to expect. See you Thursday. — Tyrone & the Cover6 Community team

Come learn how money really works. We’ll cover how to grow it, protect it, get out of debt, and use smart retirement and infinite banking strategies to build long-term security.

Join PSW Science® on May 29 at 8 PM as we welcome Michael Garrett (U. of Manchester) & Adam Thompson (NVIDIA). During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2536 The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

The Craft Cocktails Club kicks off its Rooftop Summer at the Summit Rooftop at the Conrad. Join us for delectable craft cocktails and a splendid city view. https://conradwashingtondc.com/dine/rooftop/?SEO_id=GMB--R-WASCICI-2&y_source=1_MjY1ODk0NTMtNzE1LWxvY2F0aW9uLndlYnNpdGU%3D

PLEASE CHECK THE ONLINE MEDITATION CALENDAR FOR DETAILS OF THESE MORE THAN 50 SERVICES A WEEK- https://onlinemeditation.yogananda.org/calendar/

NOTE: This working session is at Lamond-Riggs Library not MLK. It is near the Fort Totten Metro Station. A game development **Working Session** involves 3 key parts: 1. Tell people what you're going to do 2. Actually do stuff 3. Show people what you did **What to bring**: Laptop, Charger, maybe a power strip if you have one handy, any other game development tools you need. Try to download any software you need before the working session. There is Wifi at this location, but it may be slow if you have to download any large files.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

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/

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)