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Peter Mathijssen

@petermathijssen.bsky.social
211 followers 312 following 86 posts

🤓 I am a block-a-holic petermathijssen.nl

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Peter Mathijssen @petermathijssen.bsky.social · 21/09/2026
Who will win?
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Peter Mathijssen @petermathijssen.bsky.social · 20/09/2026
With App Inventor you can make your own controller using the MicroBlocks extension for App Inventor.
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Peter Mathijssen @petermathijssen.bsky.social · 19/09/2026
My PU arrived today.
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Peter Mathijssen @petermathijssen.bsky.social · 09/09/2026
😱
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Peter Mathijssen @petermathijssen.bsky.social · 10/06/2026
Always glad to help during the @mitappinventor.bsky.social Appathon.
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Peter Mathijssen @petermathijssen.bsky.social · 04/05/2026
Just arrrived at @citilab.bsky.social, meeting all the wonderful people there.
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Peter Mathijssen @petermathijssen.bsky.social · 04/04/2026
A @microblocks.bsky.social and @snap workshop during a @coderdojotilburg.bsky.social meeting today.
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Peter Mathijssen @petermathijssen.bsky.social · 14/03/2026
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Peter Mathijssen @petermathijssen.bsky.social · 20/02/2026
My wife used ChatGPT to create my new profile picture. 😂
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Peter Mathijssen @petermathijssen.bsky.social · 01/02/2026
A few of the people making @fosdem.org junior possible. Thank you @microblocks.bsky.social, @turtlestitch.bsky.social and #Snap!
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Peter Mathijssen @petermathijssen.bsky.social · 27/01/2026
Getting ready for the @microblocks.bsky.social workshops during @fosdem.org.
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Peter Mathijssen @petermathijssen.bsky.social · 27/01/2026
I was invited again to visit Olot for Faber week as part of the @microblocks.bsky.social team. I am feeling very honored to be able to visit Olot again. faberllull.cat/en/residenci...
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Peter Mathijssen @petermathijssen.bsky.social · 26/01/2026
@gbottawa.bsky.social, Your @turtlestitch.bsky.social Atomium design is beautiful.
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Peter Mathijssen @petermathijssen.bsky.social · 07/01/2026
Because it can get very hot in the workshop rooms during @fosdem.org Junior, I made a little MIT App Inventor app that is receiving data from a databot sending the CO2 level, temperature and humidity every 10 seconds. I used @microblocks.bsky.social to program the databot.
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Peter Mathijssen @petermathijssen.bsky.social · 12/10/2025
Made a block where you can show numbers that works the same as a Soroban. en.wikipedia.org/wiki/Soroban
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Peter Mathijssen @petermathijssen.bsky.social · 12/10/2025
Made a block where you can show numbers using Morse Code.
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Peter Mathijssen @petermathijssen.bsky.social · 12/10/2025
I tidied up my code and renamed the block.
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Peter Mathijssen @petermathijssen.bsky.social · 10/10/2025
Made the @microblocks.bsky.social version of the Whaley Sans font that is available for MakeCode.
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Peter Mathijssen @petermathijssen.bsky.social · 16/09/2025
I am going to Berlin next year with my son Bart. Just got tickets. 🥳
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Peter Mathijssen @petermathijssen.bsky.social · 03/08/2025
forever code, create and celebrate 🥳 @turtlestitch.bsky.social
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Peter Mathijssen @petermathijssen.bsky.social · 25/07/2025
@microblocks.bsky.social, did you know @turtlestitch.bsky.social is awesome. 😁
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Peter Mathijssen @petermathijssen.bsky.social · 25/07/2025
What do you think @turtlestitch.bsky.social & @microbit.org ?
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Peter Mathijssen @petermathijssen.bsky.social · 11/07/2025
Did my first tests with the Axiometa Genesis board. Working great with @microblocks.bsky.social
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Peter Mathijssen @petermathijssen.bsky.social · 06/07/2025
Playing with @turtlestitch.bsky.social for xota.github.io/turtlestitch...
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Peter Mathijssen @petermathijssen.bsky.social · 05/07/2025
Got my certificate for my Snap4Europe course. 🥳
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Peter Mathijssen @petermathijssen.bsky.social · 03/07/2025
Found these on the beach. 😎 @tonimorenorey.bsky.social @microblocks.bsky.social
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Peter Mathijssen @petermathijssen.bsky.social · 21/05/2025
Always a pleasure to help during the Hackathon.
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Peter Mathijssen @petermathijssen.bsky.social · 12/05/2025
I made this during my stay in Olot using MIT App Inventor. You can draw on a grid and the x, y and hex value of the color is send to a microcontroller in real time. I used a great color picker extension to change the colors. The microcontroller is of course using @microblocks.bsky.social.
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Peter Mathijssen @petermathijssen.bsky.social · 07/05/2025
My colorsniffer. Thanks to my son Bart who did all the soldering. An Adafruit Circuit Express, a color sensor (TCS34725 )and just 5 blocks using @microblocks.bsky.social The Neopixels from the Circuit Express change to the color that the color sensor detects.
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Peter Mathijssen @petermathijssen.bsky.social · 18/04/2025
Couldn't help myself and had to make these.
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Peter Mathijssen @petermathijssen.bsky.social · 07/04/2025
Still a work in progress. Making an alien generator with @microblocks.bsky.social 👾
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Peter Mathijssen @petermathijssen.bsky.social · 14/03/2025
Happy Pi Day🎉
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Peter Mathijssen @petermathijssen.bsky.social · 22/02/2025
Making art with @microblocks.bsky.social is so much fun to do. Upscaled it with upscayl.org
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Peter Mathijssen @petermathijssen.bsky.social · 05/02/2025
281 tickets were taken during @fosdem.bsky.social Junior. That is an average of more than 15 children per workshop.
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Peter Mathijssen @petermathijssen.bsky.social · 04/02/2025
@kgiori.bsky.social demonstrating the XGO Robot dog and XGO Rider. They were both really popular during FOSDEM 2025. Visitors took a lot of pictures and made movies of both while they were moving. Kathy explained that using @microblocks.bsky.social is the best way to program them.
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Peter Mathijssen @petermathijssen.bsky.social · 03/02/2025
Just a small selection of the people that made @fosdem.bsky.social Junior a big success. A big thank you to the FOSDEM organizers, developers, @codeclub.bsky.social volunteers, children, parents and other people who were interested. See you all next year, for FOSDEM Junior 2026. 🥳
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Peter Mathijssen @petermathijssen.bsky.social · 23/01/2025
Even my cats like the XGO Rider.
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Peter Mathijssen @petermathijssen.bsky.social · 23/01/2025
Playing with my new #XGORider from #elecfreaks. Using MicroBlocks to program it.
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Peter Mathijssen @petermathijssen.bsky.social · 22/01/2025
My XGO Rider just arrived. It is really fast. #ElecFreaks #XGO I am going to take it with me to @fosdem.bsky.social
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Peter Mathijssen @petermathijssen.bsky.social · 15/01/2025
Here a movieclip using a bigger tube.
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Peter Mathijssen @petermathijssen.bsky.social · 14/01/2025
A 8 x 8 NeoPixel matrix, a carboard tube, some mirrors and @microblocks.bsky.social
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Peter Mathijssen @petermathijssen.bsky.social · 10/01/2025
Getting ready for @fosdem.bsky.social with the @cocubefun.bsky.social and @microblocks.bsky.social 🥳
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Peter Mathijssen @petermathijssen.bsky.social · 09/01/2025
A @cocubefun.bsky.social programmed with @microblocks.bsky.social, rotating using a virtual joystick made with MIT App inventor.
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Peter Mathijssen @petermathijssen.bsky.social · 08/01/2025
I guess I will be busy @cocubefun.bsky.social 🥳 The CoCube is really special. Is see a great future. And it is made to work with @microblocks.bsky.social.
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Peter Mathijssen @petermathijssen.bsky.social · 06/01/2025
Thank you @sanneke73.bsky.social for the goodies we can give away during @fosdem.bsky.social Junior.
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Peter Mathijssen @petermathijssen.bsky.social · 03/01/2025
These are the blocks I used. Really simple.
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Peter Mathijssen @petermathijssen.bsky.social · 03/01/2025
Some @microblocks.bsky.social art, that looks like an Kaleidoscope.
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Peter Mathijssen @petermathijssen.bsky.social · 11/12/2024
The original Pico Board. Still working with @scratchteam.bsky.social version 1.4.
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Peter Mathijssen @petermathijssen.bsky.social · 04/12/2024
My Pico2 Jumbo board from @pimoroni.com arrived today. 😀 As always I will be using @microblocks.bsky.social to program it.
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Peter Mathijssen @petermathijssen.bsky.social · 01/12/2024
A little clip with the result.
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