Skip to content

Microcontrollers

Meetup with other local people who are interested in Microcontrollers. Both hobbiests and professionals are welcome! Come and discuss the hidden microcontrollers contained in an increasing number of products.
pin icon
892
members
people1 icon
3
groups

Largest Microcontrollers groups

Frequently Asked Questions

Yes! Check out microcontrollers events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.

Discover all the microcontrollers events taking place this week here. Plan ahead and join exciting meetups throughout the week.

Absolutely! Find microcontrollers events near your location here. Connect with your local community and discover events within your area.

Microcontrollers Events Today

Join in-person Microcontrollers events happening right now

Fiesta Tropical (Live DJ)
Fiesta Tropical (Live DJ)
Český překlad Níže EN- 🪘✨🪕 LIVE DJ The event is to mingle, enjoy Latino music (e.g. Bachata, Salsa, Reggaeton, etc), and of course, dance to it (not mandatory though :) ) . 🎖Record-breaking Event with 202 people 🥇Biggest Social Event in the Czech Republic 🎉 🏆Organized after our Biggest Event in Central Europe🥇 Bring all your friends coz it's going to be an amazing party 🥳 Meet International people, Make New Friends, Play Games, with Drinks 🍸 & Dance Cocktails in 135kc only🍸 Beer in 49 kc 🥂🍻 📍LOCATION TEQUILA TALES BAR & MUSIC CLUB Újezd 409/19, 118 00 Malá Strana, 118 00 Prague, Czech Republic Follow us for Event Updates: [https://www.instagram.com/tequilatales_prg/](https://www.instagram.com/tequilatales_prg/) Disclaimer: By showing interest in the event you agree to be in the photographs. Though we respect your privacy and if you do not want to be in the pictures, please inform the Organiser beforehand. **check photos/ videos of previous parties** \*\*\* CZ- ✨ ŽIVÝ DJ Cílem akce je smísit se, užít si latino hudbu (např. Bachata, Salsa, Reggaeton atd.) a samozřejmě si na ni zatančit (i když to není povinné :) ). 🎖Rekordní akce s 202 lidmi 🥇Největší společenská akce v ČR 🎉 🏆Organizováno po naší největší akci ve střední Evropě🥇 Vezměte všechny své přátele, protože to bude úžasná párty Seznamte se s mezinárodními lidmi, najděte si nové přátele, hrajte hry s nápoji 🍸 a tancujte Koktejly pouze za 135 kč🍸 Pivo za 49 kč 🥂🍻 Vstup začíná v 1900 hodin 📍 POLOHA TEQUILA TALES BAR & MUSIC CLUB Újezd ​​409/19, 118 00 Malá Strana, 118 00 Praha, Česká republika Sledujte nás pro aktualizace událostí: [https://www.instagram.com/tequilatales_prg/](https://www.instagram.com/tequilatales_prg/) Upozornění: Projevením zájmu o akci souhlasíte s tím, že budete na fotografiích. I když respektujeme vaše soukromí, a pokud nechcete být na snímcích, informujte prosím předem pořadatele. **prohlédněte si fotografie/videa předchozích večírků**
Saturday running and coffee
Saturday running and coffee
Hi All, Come and join us for social running and a coffee! We meet at the main gate of Vystaviste - tram stop Vystaviste Holesovice. We will run in Stromovka. Usually we run around 50mins and it is up to everyone how many kilometres. We welcome all levels of runner. We can all run together or, if there is more of us, we can split into groups and at the end of the run we all meet close to the starting point to go for a coffee to a nice local coffee place (where they also sell cakes and great chocolate). If the weather is great, we can also just sit in one of the outside coffee placces in Stromovka and enjoy the sun. This is where we meet: http://photos2.meetupstatic.com/photos/event/7/7/3/1/600_447930513.jpeg
Werckmeister Harmonies (Béla Tarr, 2000) on Saturday March 7th @ Ponrepo
Werckmeister Harmonies (Béla Tarr, 2000) on Saturday March 7th @ Ponrepo
Join us for a movie night at **Kino Ponrepo** on **Saturday, March 7th.** We’ll meet at **17:30** ***at the Ponrepo cafe*** before the film starts at **18:00**. I will be waiting at the cafe, so please look me up (reference my meetup photograph). We'll be watching *[Werckmeister Harmonies](https://nfa.cz/cs/30354-werckmeisterovy-harmonie-werckmeister-harmoniak?screening=63442),* a 2000 film by the Hungarian director Béla Tarr that portrays the life of János and his uncle György during the communist era in Hungary, and recounts their journey among helpless citizens as a sinister visiting circus casts a shadow over everyone's lives ([Wikipedia](https://en.wikipedia.org/wiki/Werckmeister_Harmonies)). Come enjoy this screening and stay for a drink and a chat about the film afterwards! The film is shown with English subtitles. **NOTE:** Please buy your own tickets (available online: [tickets](https://goout.net/en/tickets/werckmeisterovy-harmonie/ldxjb/)). (seats not numbered) **Kind request:** If you register to attend but later cannot make it, please update your RSVP in time — thank you!
Open philosophical discussion in the heart of Prague
Open philosophical discussion in the heart of Prague
Welcome to the international Café Philo in Prague. We meet every first Saturday of the month in the cosy [Café Millème](https://store11473398.ecwid.com) in the center of Prague. We choose a participant randomly, by lottery, who then has the privilege to determine the topic of our discussion. We will reflect, ponder and exchange arguments until our brains are on fire. Philosophy isn't just something for universities, it is a way to open your mind to new thoughts and questions. No application is necessary, there is no entrance fee and there are no prerequisites for participating, except curiosity and respect for other people. We meet from 17:15 until 18:45 to follow together the white rabbit into the wonderland of philosophy... More information about me under this [link](https://sophonautik.ch/english/).
The Saturday Globe Official 🤩 #1 Social Meetup in Prague
The Saturday Globe Official 🤩 #1 Social Meetup in Prague
We are an open-hearted, English-speaking tribe of locals, newcomers, and expats. 👉 Join our >>> [PUBLIC WhatsApp group HERE !](https://chat.whatsapp.com/GuBrybKEx0x2aW2BCWGKeM?mode=gi_t) <<< *(Once you arrive in person, ask for a QR code for exclusive access to our LOCAL WhatsApp community)* *Deep Topics. Real Connections.* We skip the superficial and discuss life as it REALLY is. From the chaos of modern dating to the future of society, we dive DEEP into heavy topics. We actively listen and honor diverse worldviews, but leave zero space for BS. For us, genuine connection is the norm, not the exception. *Professionally Hosted* This is the official meetup of The Globe Bookstore, an iconic hub for Prague's English-speaking community since 1993. Unlike impersonal, AI-driven mass events (Hello Amelia..), our community is genuinely curated. We have a Host always present, a Hostess to warmly welcome you, and a Photographer to capture the best moments. Come grab a drink and experience the best of Prague, together!
Saturday Football
Saturday Football
Come and join us for a fun, friendly but competitive game of 7-a-side. All abilities welcome. Artificial, outdoor pitch all year round, whatever the weather. Please be ready to play on the hour. We will play on the pitch nearest to the changing room / bar building, and you have access to the changing room before the game. The game costs 80 crowns. Ways to pay: 1\. With cash\. Ideally with exact change\, or no more than a 200 crown note\. 2\. On Revolut \- \+44 7717 452 156 / @thomas3dgu / QR code at the game\. 3\. On Wise \- I will send you a payment link\. \~\~\~ Please note that during this current busy period, 3 spaces are reserved until Monday evening for new players (fewer than 3 Saturday events).
Community Kitchen at Brix
Community Kitchen at Brix
Are you into food and making friends? Every Saturday we host a Community Kitchen at Brix, where you get the chance to eat cheap, yummy, and even see it getting ready, while meeting locals and travelers. Every week we pick different options to be prepared, but always having a vegan option, so everybody can be included. No tickets are needed, but this is a paid event, charged only at the spot. Please, contact for more information. See you there! x

Microcontrollers Events This Week

Discover what is happening in the next few days

Board game cozy Sundays - meet&play Palmovka
Board game cozy Sundays - meet&play Palmovka
Looking to meet new people and enjoy a relaxed day full of board games? Join us at Palmovka for a cozy board-gaming meet-up open to everyone — beginners, casual players, and experienced gamers! We have a big selection of games, from easy social titles to strategic favourites. You can come alone or with friends — our community is super friendly, and we always make sure nobody sits alone. Don’t worry if you don’t know the rules — we’ll happily explain everything. ✔ Friendly atmosphere ✔ Lots of games to choose from ✔ Perfect for meeting new people ✔ Come anytime during the day ✔ No registration needed entry fee 50czk (no hour limit) if you do not order anything at bar it is 100czk. Whether you want to laugh, think, or just relax after a long day, this is the perfect place to unwind and connect with others. See you at Palmovka – let’s play!
Sunday 6-a-side Football in Pražačka with Galaksians
Sunday 6-a-side Football in Pražačka with Galaksians
**6-a-side Football** practice at Pražačka Football artificial grass pitch. Maximum of 36 participants for 6 teams of 6. **Kick off at 12h30**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/PjU32Fi In case of any Opt-out within 24h of the session, or no show, the payment will be due (you still can ask someone to come instead of you, as your spot will be booked)
Brunch and Chill: Make New Friends
Brunch and Chill: Make New Friends
⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **This is a curated, small-group meetup make new friends in Prague.** Each meetup brings together 4–6 like-minded people for casual conversations over brunch. We use the Groupvibe platform to organize and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com](https://groupvibe.com) Once you register, and **buy a ticket or become a Groupvibe member**, we’ll share the exact location and match you with your group. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs here on Meetup don’t reflect total attendance. Many attendees register directly via our website. This meetup is organized by **Groupvibe**, a small team passionate about helping people form meaningful friendships offline.
Loona Dance - Nourishing Dance Session for Women - CZECH language
Loona Dance - Nourishing Dance Session for Women - CZECH language
🌙 **Nourishing Dance Session for Women - Loona Dance- in Czech MDŽ** PLEASE READ THE CZECH VERSION IN THE PICTURE BELOW ✨ Ready to reconnect with your feminine energy? Step into an embodied movement journey designed to awaken your vitality, radiance & passion. This is not about choreography. This is about coming home to your body. 💃 Move out of your head & into your heart 🌺 Reconnect with your inner source 🤍 Feel the power of sisterhood 🔥 Express yourself freely 🌸 Discover your unique gifts No dance experience needed. All women welcome — just bring yourself and comfortable clothes; you can also wear a comfy skirt. 💫 Donations are welcome. 📲 **Registration:** Martina +420 773 700 260 *** 📍 **Where:** Jankovcova 1587/8c The studio is located at the back of the building. 🚪 The entrance is opposite Marina Brewery (Pivovar). ✨ If you see the brewery, you’re in the right spot — just look across and head toward the back of the building. *** 👥 Organized by C.L.A.P. – Culture, Love, Art, People Hosted by Agora7 💬 Join our WhatsApp Community to stay updated on upcoming events: [https://chat.whatsapp.com/J40xOgmpbMxLL71dKblqYu](https://chat.whatsapp.com/J40xOgmpbMxLL71dKblqYu) 📸 Follow us on Instagram: [https://www.instagram.com/c.l.a.p.2](https://www.instagram.com/c.l.a.p.2)
Discover the Fairytale town of Český Krumlov
Discover the Fairytale town of Český Krumlov
Step into a real-life fairytale! Join us for a magical day trip to Český Krumlov — a UNESCO World Heritage town and one of the most picturesque places in Europe. With its cobbled streets, colourful houses, riverside views, and a castle perched above it all, this destination feels like stepping back in time. Český Krumlov dates back to the 13th century and grew around its stunning castle, which is one of the largest in Central Europe. The town is wrapped by the Vltava River, creating amazing viewpoints, hidden corners, and perfect photo spots. From medieval streets to lively cafés, it’s the kind of place where you just wander and discover something new at every turn. Expect history, great views, chill exploration, and lots of good memories — all in one day. Whether you’re into sightseeing, photography, or just soaking up the atmosphere, this trip has something for everyone. Distance : 10 km (aprox. 6 hours) Difficulty Rating : Easy to Moderate Tour Highlights: • Hassle-free day trip to Český Krumlov from Prague • Professional and friendly guide • Transportation by air-conditioned bus • Český Krumlov Castle & Castle Complex • Castle Tower (tour) • Old Town (Historic Center) • Latrán Street (One of the oldest streets in the city) • Cloak Bridge (Plášťový most) More information at : https://www.facebook.com/events/2035605153885492/
BlaBla Language Exchange
BlaBla Language Exchange
\~FREE EVENT\~ (Tips are welcome) Přejděte dolů na český jazyk 🇬🇧. Event Concept? 👉 Czech & Expats people can share their languages and socialize. For introverts and shy people (we all are sometimes), we have ice-breaking games and more... so feel free to come by. It is a very friendly event to meet people around the world🙂 By the time you make new friends in the meetup, our after party starts :) 🏅It is the BIGGEST, Oldest & the Only Free Language Exchange Event in the Czech Republic 🥰 (with 103 people) --> Can i Come to the Event if my English or other language is bad😔? ☺YESS! your language level does not matter. You can also make friends. 🇨🇿Can Czech People also come? Ofcourse! Everyone is invited --> How does it work? Dev (organiser) will give you the Sticker and will write your NAME & LANGUAGE you speak & want to exchange. Then you can join the Table of that language or meet the person of your language & make friends concurrently. (If you still don't understand, he will explain to you at the venue) 🙂 📍LOCATION Tequila Tales Bar & Music Club Újezd 19 118 00 Prague, Czech Republic (Nearest tram stop- Hellichova & Ujezd) 🫡Do I need a Reservation? No, Feel free to bring your friends 🤔Can I come late? Its better if you come on time so you can meet maximum people. ❓Questions❓ Write to +420 703 971 515 (call/ whatsapp) https://www.instagram.com/tequilatales_prg/ \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* \~AKCE ZDARMA\~ (Tipy jsou vítány) Přejděte dolů na český jazyk 🇬🇧. Koncept akce? 👉 Češi a cizinci mohou sdílet své jazyky a socializovat se. Pro introverty a stydlivé lidi (všichni jsme někdy) máme hry na lámání ledu a další... tak neváhejte a přijďte. Je to velmi přátelská událost k setkání s lidmi po celém světě🙂 🏅Je to NEJVĚTŠÍ, nejstarší a jediná bezplatná jazyková výměnná akce v České republice (s 103 lidmi) --> Mohu přijít na událost, když moje angličtina nebo jiný jazyk je špatný😔? ☺ANO! na vaší jazykové úrovni nezáleží. Můžete se také spřátelit. 🇨🇿Můžou přijít i Češi? Samozřejmě! Všichni jsou zváni --> Jak to funguje? Dev (organizátor) vám dá nálepku a napíše vaše JMÉNO A JAZYK, kterým mluvíte a chcete si je vyměnit. Pak se můžete připojit ke stolu tohoto jazyka nebo se setkat s osobou vašeho jazyka a zároveň se spřátelit. (Pokud stále nerozumíte, vysvětlí vám to na místě konání) 🙂 📍 POLOHA Tequila Tales Bar & Music Club Újezd 19 118 00 Prague, Czech Republic (Nearest tram stop- Hellichova & Ujezd) Potřebuji rezervaci? Ne, klidně vezměte své přátele 🤔 Můžu přijít pozdě? Je lepší přijít včas, abyste mohli potkat maximum lidí. ❓Otázky❓ Napište našemu +420 703 971 515 (call/ whatsapp) https://www.instagram.com/tequilatales_prg/
Let's Play Badminton!
Let's Play Badminton!
Let's play badminton at Sports Centre Olšanka. We'll meet at 10.40 and play for 60 minutes. If you have a Multisport card please bring it along, as it will make the court free for you and also reduce the cost for others. If you don't have a Multisport card the game will cost you a maximum of 150 crowns, probably much less. I will cover the cost of the court so please bring cash to pay me. There is a small organisation fee of 20 crowns for all players to participate in this event. Racquets can be rented for 50 crowns.

Microcontrollers Events Near You

Connect with your local Microcontrollers community

Contra dance with Big Scioty on March 7 - First Congregational Church
Contra dance with Big Scioty on March 7 - First Congregational Church
**Caller: Frank Buschelmann** **Band: The Rosenthorns** **Big Scioty Contra Dance** **temporarily returning to our long ago location for Jan-March - First Congregational Church, 444 E. Broad St., Columbus 43215** 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. Snacks to share are always welcome!
Columbus Arduino Raspberry Pi Enthusiasts (CARPE) (Check Location)
Columbus Arduino Raspberry Pi Enthusiasts (CARPE) (Check Location)
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.
Free in-person event: Take Control of Your Mental Health
Free in-person event: Take Control of Your Mental Health
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.
Cocoaheads
Cocoaheads
Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: **Python Tips and Tricks on iOS** **Mike Kennedy** 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/
Prototype, Play, and Build Workshops (In-Person @GameArena)!!!
Prototype, Play, and Build Workshops (In-Person @GameArena)!!!
This month, we are in-person at GameArena!!! We will also be joined by students and their games from [Shawnee State](https://www.shawnee.edu/game-design-programs)! \-\-\- Join us for our our monthly COGG Prototype and Play event @GameArena! Come to play and showcase your games. We're back in the upper levels of the catwalk mezzanine area. It'll be packed with lots of camaraderie playing your game(s) and other's games on the 2nd floor as well as the 1st floor in the gaming room below the mezzanine. Light snacks and water provided but you can buy food and drinks at the bar (alcoholic drink ID required). [https://www.game-arena.co/menu](https://www.game-arena.co/menu) **Attendees:** Don't have a game to show? Not a problem! All are welcomed and invited from all ages and backgrounds. The more we can have to play test our games the better! **Developers:** Do you have a game that you would like to get critical feedback on? Would you like an excuse to work on a game with other talented artists, programmers, musicians, designers, and writers? Digital, table-top, non-experienced developers, and the like are welcomed! We'll provide signage for your game to help others learn more about your work. Wifi, outlets, tables, and seats (though standing tables also) are available. Come to the Prototype and Play workshop to collaborate and meet local game developers for an evening of epic and raw game play fun! Play works-in-progress, show off your own game, work with others to add polish to a game, or even lend your talents to other fellow developers. Can use South Garage at the Gateway with a $5 voucher on your way out. 75 E 11th Ave, Columbus, OH 43201 [https://maps.app.goo.gl/UwgveUYG37Jy7RtS9](https://maps.app.goo.gl/UwgveUYG37Jy7RtS9) If you have any questions or comments, as always, feel free to reach out to us at [info@thecogg.com!](http://info@thecogg.com!/)
Take Control Of Your Life, Freedom From Negative Thoughts & Irrational Emotions
Take Control Of Your Life, Freedom From Negative Thoughts & Irrational Emotions
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.
NSCoder Night
NSCoder Night
Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.