Showcase your skills in coding, digital making, and problem solving.

Congratulations to the winners, and thanks everyone for taking part!
See you in 2021, and do watch out for news from the Micro:bit Foundation on the do your :bit competition!

Junior Category

ThemeSKP1School Re-Opening
DesignPUB64The Safe Room Counter
CoderWWPS6Crowd Monitoring Device
InfluencerPUB6(COVID-19) micro:bit Watch
Green WarriorPUB63Robot Cleaner
GodzillaWWPS1Hand Washing Reminder Robot
BasicAP3Mask Up Reminder
MinimalistWWPS8A Reminding Watch
ExplorerJYP3Care 4 Com
CraftspersonPUB44Hand Hygiene Helper (HHH)
FriendliestPUB36Mask Sterilizer Box
CommunityCITC12Auto Thermometer Scanner
Judge's ChoiceWWPS4micro:bit Watch

Senior Category

PresentationRGS27Safe Opening For You (SOFY)
DesignRS13Covid-19 Safety Sitting Arrangement at Restaurants/Hawker Centres
CoderRGS75Sorry We Are Full!
InfluencerCITC7My First micro:bit Project
Green WarriorEFSS9DIY Thermometer
Green WarriorRGS18Soapy
BasicRGS20Entry Counter
MinimalistYCS8Watch and Distance Checker
ExplorerYS9Smart Hanger
CraftspersonYCS1Smart Door Ver.2
FriendliestRGS74The Wipe Down Van
Judge's ChoiceDHS8Beacon


The 3D-Tronics Micro:bit Asia Challenge is an annual platform organised by Zenitant and Tinkercademy for students to showcase their skills in coding, digital making and problem solving.

This year, we are happy to announce support by LearnSG and IMDA to provide free micro:bits and starter kits to qualifying participants from selected community programmes. Schools will also receive free starter kits for student use.

With social distancing measures still in place, 3D-Tronics 2020 will be conducted entirely online, with free online training for participants, as well as online Q&As, submissions, and judging.

Competition Details

This year's theme is Digital Making for Safe Re-Opening. Can you prototype a digital maker solution to help address the issues of the day?Participants must work individually, using the micro:bit and any other add-ons, to create a project around the theme.Participants will submit their final product, in the form of code + a video or presentation, by 28 August.There will be complimentary online training provided from July to August. Participants can sign up for one session.Attractive prizes to be won for the most creative projects!
Students can take part in one of two categories:

senior category

Junior Category

For participants from primary schools (age 7-12).

senior category

Senior Category

For participants from secondary schools, junior colleges, polytechnics, and ITE (age 13-19).


Please note that registration has closed, as of 17 August.

Participants from community programmes (e.g. Code In The Community), please fill in this registration form for community programme participants. Please note that only registrants from community programmes listed in the form will be approved to receive the micro:bit and starter kit.

All other students, please register through your school teachers. Teachers can download this Excel file, and submit to [email protected]. We will confirm the availability of starter kits, and arrange for delivery to your school.

Judging and Awards

For the main competition, entries will be judged based on the following:

  • Theme: Adherence to theme, and originality of concept

  • Presentation & Documentation: Slides and/or documentation of your project

  • Design & Functionality: Creative construction

  • Coding: Original and inventive solutions encouraged

For this year's competition, you can aim for one of the many prize categories below! We are planning for each category to include a Junior (primary school) and Senior (secondary school and above) winner.

Do note that the organising committee reserves the right to award one prize to more than one entry, or not award a given prize if no entries are found suitable.

  • Theme Award: Most original/innovative concept while adhering to "Digital-Making for Safe Reopening"

  • Presentation Award: Best slides or documentation!

  • Design Award: Creative use of the Kit, well-thought out build/structure

  • Coder Award: Most interesting or innovative code

  • Influencer Award: Most liked on social media. For this, upload on YouTube, and we'll check for the number of Likes by 2 days after the deadline.

  • Green Warrior: Best use of recycled material like cardboard, plastic bottles, newspaper, etc.

  • Godzilla Award: Biggest/Tallest Project: a constructed project that's at least 20cm tall or wide, with a good reason for its size (don't just attach a micro:bit to a cardboard)

  • Basic Award: Best project with just the Basic Kit

  • Minimalist Award: Best project with just the micro:bit, and no other electronic components.

  • Explorer Award: Best outdoor-oriented prototype—take micro:bit outdoors, weatherproof it, or make it interact with the environment!

  • Craftsperson Award: Most hand-made and fewest pre-fabricated* parts as possible. (*Prefabs are parts that are designed by someone else, bought and used off-the-shelf.) You must show evidence of your design process through photos, sketches, or CAD.

  • Friendliest Award: Project with the most potential to be used/played with friends.

  • Community Award: Best project from community organisation participants

  • Judges' Choice: Selected by a panel of international judges

How and what to submit

Please submit to tk.sg/3dsubmit by 28 August, 11:59pm. Do read through the form beforehand, as it includes some notes on what to submit, as well as a survey by LearnSG.

You can download this submission template (PowerPoint file) to get started.

  • Slides or Document: Include these: (1) Your name, school, and competition serial number; (2) Title and description of your project, how it relates to the theme, and any awards you are aiming for; (3) What you learned; (4) The items below. We will put up a downloadable template for this soon, but you are free to get started.

  • Photos: Take between 2–5 photos of your project in action, or how you made it! Be sure to show off the best view of your project. Include these in your document.

  • Code: Take a screenshot of your code. In MakeCode, right-click an empty code area, and select Snapshot. Next, click on the Share button at the top left, Publish your project, and copy the link. Include these in your document. If you're working in syntax-based code like Python, you can just paste the code in the document, or paste a link to a public Gist, or use a hastebin like code.tk.sg.

  • Video: Take a video introducing your project! The video should be between 15 seconds and 1 minute long. TikTok-style music videos encouraged, but no need to dance. Upload it to YouTube, set it to public or unlisted, and include a link in your document.

You need a competition serial number for submission.

If you registered through your school, your teacher should have received your CSN by email on Tuesday, 18 August. Please check with your teacher.

If you registered yourself, you should have gotten it by email—if you didn't get it, drop us an email at [email protected], with your full name and what organisation you registered under.

Frequently Asked Questions

Who are considered participants from community organisations? We are reserving a number of competition spots for students from under-privileged backgrounds, as represented by community organisations such as Code in the Community. In addition to free online training, students will receive a free micro:bit kit, including a BBC micro:bit Go and a Basic Kit.How can I get students from my community organisation involved? If you would like to invite students from your organisation to join our competition, please drop us an email at [email protected]. We will update the form so that they can register, or you can register for them.Do schools receive micro:bits and kits? Schools will not receive micro:bits, but we have secured a number of Basic Kits for schools. If your school does not need the kits, please let us know, and we can make them available to others.What if my school does not have micro:bits? We can make micro:bits available for purchase or rental upon request. Please drop us an email at [email protected]. If you would like to purchase directly, you can head over to the Get Hacking STEM Store and buy from the micro:bit selection—use the promo code 3dtronics for a 10% discount.When will schools or students receive their kits? Please allow up to 2 weeks for us to arrange delivery. You can get started learning about the micro:bit before that at the micro:bit website.Are there any restrictions on what materials and kits we can use for the competition? No, you are free to use any micro:bit kits, as long as you use the micro:bit, and any amount of construction material. However, do read through the descriptions of the various awards, as you will not be able to qualify for some awards, depending on what you use (or don't use).

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