Microcontrollers

Have you been interested in woodworking, 3D printing, CNC, cosplay or Electronics? Come visit Maker Community to get a tour of our space, learn about our memberships, have a chat with our members and discuss your dream projects.

NuCalm is a patented, drug-free neuroscience technology designed to rapidly reduce stress, improve sleep quality, and aid recovery by shifting the body from a "fight-or-flight" state to a deeply relaxed parasympathetic state within minutes. [https://stamina.xosialx.com/nucalm.html](https://stamina.xosialx.com/nucalm.html) It uses neuroacoustic software, a biosignal processing disc, and light-blocking eye masks to guide brain waves from active beta states down to alpha/theta (relaxation/meditation) levels NuCalm uses a patented, clinically proven pitch and frequency matrix with non-linear oscillating algorithms to safely present your brain with precise signals, prompting what is known as a frequency-following response. Your brain synchronizes with the incoming NuCalm signals helping you naturally and effortlessly manage your state of mind by speeding up or slowing down your brain wave frequencies. NuCalm has mapped all of your brain wave frequency zones and created products to safely and predictably guide you to whatever mental state you desire. The amazing thing is, NuCalm is all-natural and works every time you use it within minutes. The best thing to do now is to watch the video on the website and download the NuCalm app. All you need is a headset and eye mask. This app purchase is covered with a 30-day money-back guarantee. Get started today and FEEL the difference even 15 minutes can make. WATCH THE VIDEO ON THE WEBSITE. [https://stamina.xosialx.com/nucalm.html](https://stamina.xosialx.com/nucalm.html)

$29 per person for 2 hours of training (includes table hire) ## 🏓 MELBOURNE TABLE TENNIS COACHING @ MSAC Ready to seriously improve your table tennis — or finally start the right way? Join our **ongoing in-person group coaching sessions at MSAC**, where you’ll train in a structured but fun environment with players who come regularly, as well as new faces every week. Our sessions are designed for **both total beginners and advanced players.** You don’t need experience — and you won’t be bored if you already have it. ### What to expect * ✅ **10–15 players per session** * ✅ **2 experienced coaches on court** * ✅ **Structured drills + match play** * ✅ **Individual feedback based on your level and goals** * ✅ **A welcoming group that trains regularly** You’ll work on **technique, footwork, consistency, tactics, and real match situations** — not just hit balls randomly. We organise the group so everyone is challenged at the right level. ### Why people love these sessions * Ongoing training with a real community * Fast improvement, not just social play * A great way to **move, learn, and make friends** * Fun, supportive atmosphere with serious coaching behind it Whether your goal is to **learn from scratch, get fitter, sharpen your skills, or start competing**, this is a perfect place to train. ### What to bring * 🏓 **Bat/paddle** (if you have one — if not, we’ll provide it) * 👟 **Sports shoes (runners)** * 👕 **Comfortable sports clothes** * 💧 **Water bottle** * 🧴 **Small towel** Grab your paddle, bring your energy, and come hit with us at MSAC. Please send me an email to: p.tretinik@gmail.com to confirm attendance. This helps me to book enough table for a smooth session. NOTE: If this is not your first time coming to this meet up, the cost is $36 for the whole 2 hours.

**CLOSED FOR EASTER MONDAY PUBLIC HOLIDAY.** **\* NO POINT COOK CUBAN SALSA & BACHATA CLASSES TODAY.** **THE POINT COOK CLASSES WILL RESUME** **ON MONDAY 13TH APRIL.**

**\*\*\*This is a pre-booking event. Please visit [artmasterclass.com.au](https://www.artmasterclass.com.au/) choose your cheeseboard and coaster, use the *MEETAMC10* coupon code, and make a reservation.\*\*\*** Unleash your creativity at our Resin Art Workshop in the heart of Melbourne! Join us for a fun and interactive session where you'll learn the art of resin pouring from expert instructors. Whether you're a complete beginner or looking to refine your skills, this workshop is perfect for everyone. You'll create stunning, unique pieces to take home and enjoy, all while surrounded by like-minded creatives. Our workshops provide all the tools, materials, and guidance you'll need to bring your vision to life. Discover the mesmerizing flow of resin, explore vibrant pigments, and watch your art evolve into a glossy masterpiece. Each session is designed to be both educational and relaxing, making it the ideal activity to unwind, socialize, and spark inspiration. Spaces are limited, so book your spot today and dive into the colorful world of resin art with us!

Our regular monthly presentation night on the second Thursday of the month from 6:30pm! Thanks to Mantel Group for hosting us again this month. If you're coming in person we're there with food and drinks from 6pm. We will be live streaming the presentations as usual from 6:30pm at [http://www.melbournecocoaheads.com/live](http://www.melbournecocoaheads.com/live) \-\-\- **Agenda** \| 6:00pm \| Food \+ Networking \| \| 6:30pm \| Event begins\. Introductions \| \| 6:40pm \| Chris Hocking — Pretending to be a coder \- Version 3: The world has changed since we last saw Chris… Codex\, Claude and burnout\. \| \| 7:15pm \| TBC \| \| 7:55pm \| Wrap up \+ social time at a nearby venue \| \* All times are approximate. Presentation order will be confirmed on the night. \-\-\-\- We are always looking for speakers and believe everyone has an interesting talk hiding inside themselves. If you are interested in letting that talk out at a future event you can get in touch on the website [https://www.melbournecocoaheads.com/talks](https://www.melbournecocoaheads.com/talks) or on Slack.

Toastmasters is a worldwide organisation which empowers its members to conquer their fear of public speaking and become better communicators. There is no need to formally register for the event, just RSVP to this meetup event if you can, then simply show up in person on the evening. If there is no one at the entrance, please message one of the organisers on this app For more information, check out the City Centre Toastmasters website [here](https://citycentretoastmastersmelbourne.toastmastersclubs.org/). What we'll do at the meeting: \- Impromptu speaking \(Table Topics\): Everyone can take part in this\! \- Prepared Speeches: Please note that only Toastmasters members can give prepared speeches\. \- Get friendly and constructive feedback on your speaking\. \- Get to know each other during the break\, before\, and after the meeting\. Important to know * Members of this Meetup are not automatically members of the club. Meetup refers to people who belong to the City Centre Toastmasters Meetup group as 'members,' but from a Toastmasters' point of view, people are only members if they've paid their club dues.

Hi Gophers! Join us this April for an evening of Go talks exploring real-world systems, from building a BitTorrent client to running Go on legacy architectures. We are looking forward to connecting with you. * **Agenda** **6:00pm — Food & Networking** **6:30pm — Intro + Go News** **6:45pm — Talks** **8.00pm — Wrap up then head out for kick ons** **🎤 Tom Clancy** **Building a BitTorrent client in Go** BitTorrent, first released in 2001 is a peer-to-peer protocol for file sharing. Its decentralised approach, where pieces of files are exchanged with peers (rather than a central server), is a natural fit for Go's concurrency model. This talk looks at the inner workings of the protocol, how to build your own client, and concurrency patterns for performance. Bio: Tom is a Software Engineer at Megaport, working on their edge networking functions platform (written in Go). **🎤 Sam Hobson** **Compiling Go for Ancient Architectures** Some customers approached Knocknoc asking if we can get our Go agent to run on their old HPUX PA-RISC and Solaris SPARC machines, both unsupported by Go, and we took on the challenge of finding a way to make it work Bio: "I'm Sam, I'm a software engineer of a couple of years working at a startup called Knocknoc on Just-in-time network layer access control software. Please come talk to me about cool stuff you're working on!" * **Interested in speaking at an upcoming event?** We will aim to have a mix of short (\~10min) and in-depth (20-30min) talks. If you’re keen to give a talk on a topic, share a project, or idea, please let us know [bit.ly/GolangMelbourneSpeakersForm](https://bit.ly/GolangMelbourneSpeakersForm)

Hello everyone! Join us for an Apache Kafka® x Apache Flink® meetup on **Apr 9th from 5:30pm**, in Melbourne! The address, agenda, and speaker information can be found below. See you there! **📍Venue**: 394 High Street Northcote, Victoria 3070 \*\*\* **🗓 Agenda:** * 5:30pm: Doors open * 5:30pm - 6:00pm: Pizza, Drinks, and Networking * 6:00pm - 6:30pm: Chad Harris, Solutions Architect, Factor House * 6:30pm - 7:00pm: Stephen Ermann, Senior Customer Success Technical Architect * 7:00pm - 7:30pm: Additional Networking \*\*\* **💡 Speaker:** Chad Harris, Solutions Architect, Factor House **Talk:** Things that go bump in the night: Kafka Operational Issues and How to Survive Them **Abstract:** Most Kafka talks focus on how things should work—this one is about what actually happens in production. We’ll walk through real-world operational issues encountered with Apache Kafka and its clients, from subtle misconfigurations to full “why is everything on fire?” moments. Along the way, we’ll break down how to identify what’s going wrong, which signals actually matter, and how to approach debugging when the system doesn’t behave the way you expect. This talk will also touch on observability, common failure patterns, and practical mitigation strategies you can apply immediately. Expect a mix of technical deep dives, debugging workflows, and a few war stories (including some questionable decisions and log-staring sessions). If you’ve ever wondered whether it’s just you? It's not! **Bio:** Chad Harris is a streaming data specialist and Solutions Architect at Factor House, where he helps organisations design, scale, and operate Apache Kafka platforms using industry-leading tooling. With experience scaling Kafka across organisations ranging from small startups to some of Silicon Valley's largest companies, Chad has been working with Kafka since its early days. He brings deep expertise across both real-time streaming and data-at-rest systems, with a strong focus on practical, production-ready architectures. \-\-\-\-\- **💡 Speaker:** Stephen Ermann, Senior Customer Success Technical Architect **Talk:** From Lag to Smooth Sailing: How Queues for Kafka (KIP-932) Fix Slow Consumers **Abstract:** Slow or bursty consumers are one of the most common reasons Kafka applications end up fighting lag, over-provisioning, and operational fire drills. Traditional Kafka consumer groups work brilliantly for high-throughput stream processing, but they can make it hard to serve heterogeneous consumers, apply backpressure cleanly, or guarantee fair access when some consumers fall behind. In this talk, we’ll explore **Queues for Kafka**, the new KIP-932 feature that introduces native queue semantics on top of Kafka’s battle-tested log foundation. We’ll look at how queues decouple producer and consumer throughput, isolate slow consumers without penalising fast ones, and provide more predictable delivery and scaling behaviour for “task” and “work queue” style workloads. You’ll walk away with: * A clear mental model of how Kafka queues differ from topics and consumer groups * Concrete design patterns for handling slow and spiky consumers * Migration tips for evolving existing Kafka-based services to use queues safely If you’ve ever stared at a lag graph wondering whether to add more consumers, more partitions, or more coffee, this session will show you a cleaner path to smooth sailing with Kafka. **Bio:** Stephen Ermann is a **Senior Customer Success Technical Architect at Confluent**, working with leading financial institutions across APAC to design and operate mission-critical, real-time data platforms. With deep experience in **Apache Kafka**, **Confluent Cloud and Platform**, and surrounding ecosystems like **Kafka Connect** and **Apache Flink**, Stephen helps customers solve hard problems around scalability, reliability, and security in production. They are particularly focused on **RBAC, OAuth, mTLS, and container image security**, as well as emerging **agentic AI** patterns built on streaming data. Outside day-to-day architecture work, Stephen regularly shares practical patterns and lessons learned at meetups and user groups across the region. \*\*\* If you would like to speak or host our next event please let us know! community@[confluent.io](http://confluent.io/)

Welcome to Serverless Sushi, the hottest new restaurant in town! As their newly hired developer, you've been tasked with revolutionizing their online ordering system. Let's embark on this exciting journey of building a robust, scalable API using Powertools for AWS Lambda. Powertools for AWS Lambda is a developer toolkit to implement Serverless best practices and increase developer velocity. It’s an open-source project that helps implement well architected best practices earlier in the development lifecycle. Learn how to build production ready AWS Serverless APIs that will instantly work at scale and learn about Powertools for AWS Lambda. **A laptop is required to participate.**

NuCalm is a patented, drug-free neuroscience technology designed to rapidly reduce stress, improve sleep quality, and aid recovery by shifting the body from a "fight-or-flight" state to a deeply relaxed parasympathetic state within minutes. [https://stamina.xosialx.com/nucalm.html](https://stamina.xosialx.com/nucalm.html) It uses neuroacoustic software, a biosignal processing disc, and light-blocking eye masks to guide brain waves from active beta states down to alpha/theta (relaxation/meditation) levels NuCalm uses a patented, clinically proven pitch and frequency matrix with non-linear oscillating algorithms to safely present your brain with precise signals, prompting what is known as a frequency-following response. Your brain synchronizes with the incoming NuCalm signals helping you naturally and effortlessly manage your state of mind by speeding up or slowing down your brain wave frequencies. NuCalm has mapped all of your brain wave frequency zones and created products to safely and predictably guide you to whatever mental state you desire. The amazing thing is, NuCalm is all-natural and works every time you use it within minutes. The best thing to do now is to watch the video on the website and download the NuCalm app. All you need is a headset and eye mask. This app purchase is covered with a 30-day money-back guarantee. Get started today and FEEL the difference even 15 minutes can make. WATCH THE VIDEO ON THE WEBSITE. [https://stamina.xosialx.com/nucalm.html](https://stamina.xosialx.com/nucalm.html)

**Caller: Kim Thompson** **Band: Full Moon Country Dance Orchestra** **Clinton Heights Lutheran Church** **15 Clinton Heights Ave, Columbus, OH 43202** WHAT IS CONTRA DANCING? Picture the Grand Ball scenes like you’ve seen in period films such as “Pride and Prejudice”, where the dancers are lined up in long lines, across from each other. That’s English Country Dancing, the predecessor of contra dancing. Now, add moves like “swing your partner” and “do-si-do,” like you’ve seen in square dancing. Set it to fabulous, high energy, live music with fiddles, guitars, percussion and more, alá “Riverdance.” Finally, set the whole scene down in the middle of Woodstock, with a hip, groovy atmosphere, a bit of tie-dye, and hints of counter-culture attitude. THAT’s Contra Dancing! Wear cool and comfortable clothes (you will get warm) and clean shoes that won't mark up our nice wood floor. Be sure to come for the beginner's lesson from 7:30 - 8:00, followed by dancing 8:00 - 10:30. All dances are taught; we will help you learn! Beginners always welcome, no need to bring a partner. Cost is $10.00 adults, $5.00 ages 12-26. Under 12 free. Free parking in church lot. For more information contact me or check out our website: [www.bigscioty.com](http://www.bigscioty.com/) Please bring your own refillable water bottle.

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.

It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind. Find out what the reactive mind is, and in the process find yourself. Have you ever suffered from a traumatic experience, a deep loss or been through a painful breakup? Has your ability to communicate suffered as a result? And after that, even though you "moved on" did you find that things were never quite the same? Have you ever looked at childhood photos, or reminisced your early life and wondered where that happiness and spark went? Are your emotions out of your own control? Have you ever felt, even if you aren’t aware of it, that possibly you are getting in your own way of your happiness and success? How does this affect your self-confidence? Find out what is at the root of all stress, anxiety, depression and self-doubt. Find out how and why you hold yourself back from achieving your goals and having the life you have dreamed of. As soon as you learn what is at the root of these unwanted conditions, you’ll see it is something you can DO something about. You will not be labeled or categorized at this MeetUp.

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!

Feeling down? Sometimes depressed? Can't focus? Negativity & stress? Recent losses? Creativity in career and personal life hindered by mental blocks? Sometimes we never fully recover from traumatic experiences. Whether it was yesterday, last week or a year ago, traumatic experiences - a loss of a loved one, losing a job, a breakup - can leave you scarred. You talk about it and feel a little better, but it never goes away. After you hang up the phone, it's still there; the sadness, the cloud, the over-thinking, the worry, the guilt. You try to focus, but you're blocked. You try to look forward into new experiences, new relationships but a cloud is hanging over you, casting a shadow on what you once considered a bright, cheerful future. What happened to your courage? Your strength of character? You're 'why not' attitude? Whoever said 'time heals' must have had a special time machine, because after weeks, months, years, you're wondering - when exactly does that kick in? Sometimes it seems like drinking or drugs are the way to go. But they wear off, and now the problem is still there with added side effects from the drugs. At this free local Meetup event we will talk about: * What causes grief, anxiety and depression to become chronic. * Is it possible to regain your joy and happiness even after traumatic experiences? * How to break away from negativity and focus on the future * What are the steps to take to get control of your mind and your emotions? Learn about a safe, gentle, do-it-yourself counseling that can be done in the comfort of your own home. Let's explore safe, effective solutions for healing from traumatic experiences. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This group is sponsored by the Dianetics & Scientology Life Improvement Center.

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/

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).