Scratch 3

Scratch 3 was released in January this year, and since then we and the Scratch team have put lots of work into creating an offline version for 性鲁鲁视频 Pi.

The new version of Scratch has a significantly improved interface and better functionality compared to previous versions. These improvements come at the cost of needing more processing power to run. Luckily, 性鲁鲁视频 Pi 4 has delivered just that, and with the software improvements in the newest version of 性鲁鲁视频 Pi OS, Buster, we can now deliver a reliable Scratch 3 骨性凸嘴矫正手术视频 on our computer.

Coding for kids in Scratch

Your kids can learn to code in Scratch with our free learning paths. These paths guide them to make fun projects and gain independence as coders and makers.

• Introduction to Scratch: sprites, scripts, and loops: This path is for beginners and introduces Scratch and coding concepts step by step as they make animations, a game, an app, and a book
• More Scratch: broadcasts, decisions, and variables: On this path, kids can build on the skills they’ve learning in the Intro path to take their Scratch creations further as they code apps, games, and simulations
• Further Scratch: clones, my blocks, and boolean logic: On this path, young coders take advantage of all the tools in Scratch to code a range of different programs including simulations, games, and computer-generated art

Scratch and electronics with a 性鲁鲁视频 Pi computer

If you think your kids would like to learn how to build physical projects they can program in Scratch, then take a look at our Physical 性鲁鲁视频 with Scratch and 性鲁鲁视频 Pi path. In these six projects, your young people will learn how to use Scratch on a 性鲁鲁视频 Pi computer to control LEDs, buttons, and buzzers to make interactive games, displays, and instruments.

Which 性鲁鲁视频 Pi can I use?

Scratch 3 needs at least 1GB of RAM to run, and we recommend a 性鲁鲁视频 Pi 4 with at least 2GB RAM. While you can run Scratch 3 on a 性鲁鲁视频 Pi 2, 3, 3B+, or a 性鲁鲁视频 4 with 1GB RAM, performance on these models is reduced, and depending on what other software you run at the same time, Scratch 3 may fail to start due to lack of memory.

The Scratch team is working to reduce the memory requirements of Scratch 3, so we will hopefully see improvements to this soon.

How to install Scratch 3

You can only install Scratch 3 on Raspbian Buster and on newer 性鲁鲁视频 Pi OS versions.

First, update 性鲁鲁视频 Pi OS!

• If you’ve yet to upgrade to Raspbian Buster, we recommend installing a fresh version of 性鲁鲁视频 Pi OS onto your SD card instead of upgrading from your current version.
• If you’re already using 性鲁鲁视频 Pi OS, but you’re not sure your running the latest version, update your OS by following this tutorial:

Once you’re running the latest version of 性鲁鲁视频 Pi OS, you can install Scratch 3 either using the Recommended Software application or apt on the terminal.

How to install Scratch 3 using the Recommended Software app

Open up the menu, click on Preferences > Recommended Software, and then select Scratch 3 and click on OK.

How to install Scratch 3 using the terminal

Open a terminal window, and type in and run the following commands:

sudo apt-get update
sudo apt-get install scratch3

What can I do with Scratch 3 and 性鲁鲁视频 Pi?

Scratch 3 Desktop for Raspbian comes with new extensions to allow you to control the GPIO pins and Sense HAT with Scratch code!

GPIO extension

GPIO extension is a replacement for the existing extension in Scratch 2. Its layout and functionality is very similar, so you can use it as a drop-in replacement.

The GPIO extension gives you the flexibility to connect and control a whole host of electronic devices.

Simple Electronics extension

If you are looking to add something simple, like an LED or button controller for a game, you should find the new Simple Electronics extension easier to use than the GPIO extension. The Simple Electronics extension is the first version of a beginner-friendly extension for interacting with 性鲁鲁视频 Pi’s GPIO pins. Taking lessons from the implementation of gpiozero for Python, this new extension provides a simpler way of using electronic components: currently buttons and LEDs.

In this example, an LED connected to GPIO pin 17 is controlled by a button connected between pin 2 and GND.

Sense HAT extension

We’ve improved the Sense HAT extension to take advantage of new features in Scratch 3, and the updated version of the extension also introduces a number of new blocks to allow you to:

• Sense tilting, shaking, and orientation
• Use the joystick
• Measure temperature, pressure, and humidity
• Display text, characters, and patterns on the LED matrix

micro:bit and LEGO extensions

The micro:bit and LEGO extensions will become available later on Scratch 3 Desktop. This is because Scratch Link, the software which allows Scratch to talk to Bluetooth devices, is not yet available for Linux-type operating systems like Raspbian. A version of Scratch Link for Raspbian is part of our plans but, as yet, we don’t have a release date.

A round of thanks

It has been a long ambition of both the Scratch and 性鲁鲁视频 Pi teams to have Scratch 3 running on 性鲁鲁视频 Pi, and it’s amazing to see it released!

A big thank you to 性鲁鲁视频 Pi engineer Simon Long for building and packaging Scratch 3, and to the Scratch team for their support in getting over some of the problems we faced along the way.

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In this blog post, Marcos shares how his 骨性凸嘴矫正手术视频 at Picademy helped him successfully combine his skills as a teacher with an entrepreneurial drive.

At Picademy North America

The day before my flight to San Jose Airport to the Computer History Museum in Mountain View, I was busy in my garage makerspace. It’s strange when and how inspiration strikes, but it did — at 1am while I was preparing for Picademy. While looking at the 性鲁鲁视频 Pi and all the coding languages, I began thinking, “Wouldn’t it be cool if I could hold the code in my hands and manipulate it?” So I began tinkering with the 3D printer and created a repeat block — and that’s how the story of Hands-On Coding begins.

The following day, I was part of the first cohort of 性鲁鲁视频 Pi Certified Educators (RCEs) in America. I walked into a room full of innovative and creative teachers from all over the country. Over the next two days, we were introduced to the world of 性鲁鲁视频 Pi and the coding basics we needed to create our first project. It was here that I understood the power of coding and how it is the language of the future. I truly believed then — and now! — how impactful coding could be if integrated into schools.

With so many talented people in attendance, I decided to share my 3D-printed coding blocks. After receiving many “oohs” and “aahs” from my peers along with several order requests, I realized that my idea could turn into something much bigger!

FAIL: First Attempt In Learning

One of the major takeaways from Picademy was Carrie Anne Philbin’s intro slide titled “FAIL: First Attempt In Learning.” But, for me, the word ‘fail’ turned into ‘fear’: being new to coding and the 性鲁鲁视频 Pi was daunting. Through persistence, though, I embraced growth, and worked my way out of those fears; I began to gain more confidence, which led to new ideas and 骨性凸嘴矫正手术视频s. And I learned that changing my perspective on failure was the key to embracing it. Some time after Picademy, this same message was repeated to me by Reshma Suajani, founder and CEO of Girls Who Code, who saw my coding blocks and said: “Don’t let the fear of failure get in your way.” So I let failure drive me instead.

Hands-On Coding blocks

After Picademy, I met with Sam Patterson, another amazing RCE, at his local makerspace. During our conversation, I handed him one of my first coding block prototypes and asked for his thoughts. His words got me thinking about kinesthetic coding and the physical movements of acting out code to build understanding.

Two years later, in July 2018, after developing partnerships, distribution channels, and a fantastic shipping department (me), we delivered our first Hands-On Coding blocks! Hands-On Coding now consists of me and my partners Laura Fleming and Joann Presby, and our goal is to revolutionize coding by making it a more physical and tangible educational idea open to various types of learners. We hope to teach the fundamentals of computational thinking and computer science through the use of blocks and the absence of any technological device; you don’t need to learn coding in front of a screen. Our endgame is to help humanity learn to design solutions to problems in our world.

After Picademy

My 骨性凸嘴矫正手术视频 at Picademy was just the start of my journey. I not only gained an understanding of the importance of coding in education and the versatility of the 性鲁鲁视频 Pi computer, but also grew out my shell and gained the confidence I needed to put ideas into actions. I became a TED Innovative Educator and an IDEO Teachers Guild Fellow, I launched Hands-on Coding, and I created numerous relationships and ambassadorships with an array of edtech companies. I understood that just because I am an educator or teacher that doesn’t mean I can’t follow my own dreams and aspirations and be a teacherpreneur! I do not have any secrets or magic to this process. Rather, a dream, action, and hard work can lead you to many worlds of possibilities.

Picademy and online training

Keep up to date with Picademy, including the release of 2019 dates, by following the #Picademy hashtag on Twitter. You’ll also find more information on our Picademy page.

Our free online training courses offer another way to learn about introducing coding into the classroom, and much more. And you can discover more stories and support from educators like Marcos in Hello World, the 性鲁鲁视频 and digital making magazine for educators, which is available for free.

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When the Astro Pi case was first revealed a couple of years ago, the collective outpouring of ‘Squee!’ it elicited may have been heard on board the ISS itself. People wanted to buy it or build it at home, and someone wanted to know whether it would blend. (There’s always one.)

The Sense HAT and its Pi tucked snugly in the original Astro Pi flight case — gorgeous, isn’t it?

Replicating the Astro Pi case

Some months later the STL files for printing your own Astro Pi case were released, and people jumped at the chance to use them. Soon reports appeared saying you had to make quite a few attempts before getting a good print — normal for any complex 3D-printing project. A fellow member of my local makerspace successfully made a couple of cases, but it took a lot of time, filament, and post-print finishing work. And of course, a plastic Astro Pi case simply doesn’t look or feel like the original made of machined aluminium — or ‘aluminum’, as they tend to say over here in North America.

A batch of tops designed by Tim

I wanted to build an Astro Pi case which would more closely match the original. Fortunately, someone else at my makerspace happens to have some serious CNC machining equipment at his small manufacturing company. Therefore, I focused on creating a case design that could be produced with his three-axis device. This meant simplifying some parts to avoid expensive, slow, complex multi-fixture work. It took us a while, but we ended up with a design we can efficiently make using his machine.

Tim’s first lasered case

And the resulting case looks really, really like the original — in fact, upon receiving one of the final prototypes, Eben commented:

“I have to say, at first glance they look spectacular: unless you hold them side by side with the originals, it’s hard to pinpoint what’s changed. I’m looking forward to seeing one built up and then seeing them in the wild.”

Inside the Astro Pi case

Making just the bare case is nice, but there are other parts required to recreate a complete Astro Pi unit. Thus I got my local electronics company to design a small HAT to provide much the same support the mezzanine board offers: an RTC and nice, clean connections to the six buttons. We also added well-labelled, grouped pads for all the other GPIO lines, along with space for an ADC. If you’re making your own Astro Pi replica, you might like the Switchboard.

The electronics supply industry just loves to offer *some* of what you need, so that one supplier never has everything: we had to obtain the required stand-offs, screws, spacers, and JST wires from assorted other sources. Jeff at my nearby Industrial Paint & Plastics took on the laser engraving of our cases, leaving out copyrighted logos etcetera.

Lasering the top of a case

Get your own Astro Pi case

Should you like to buy one of our Astro Pi case kits, pop over to www.astropicase.com, and we’ll get it on its way to you pronto. If you’re an institutional or corporate customer, the fully built option might make more sense for you — ordering the Pi and other components, and having a staff member assemble it all, may well be more work than is sensible.

Tim’s first full Astro Pi case replica, complete with shiny APEM buttons

To put the kit together yourself, all you need to do is add a Pi, Sense HAT, Camera Module, and RTC battery, and choose your buttons. An illustrated manual explains the process step by step. Our version of the Astro Pi case uses the same APEM buttons as the units in orbit, and whilst they are expensive, just clicking them is a source of great joy. It comes in a nice travel case too.

This is Tim. Thanks, Tim!

Take part in Astro Pi

If having an Astro Pi replica is not enough for you, this is your chance: the 2017-18 Astro Pi challenge is open! Do you know a teenager who might be keen to design a experiment to run on the Astro Pis in space? Are you one yourself? You have until 29 October to send us your Mission Space Lab entry and become part of the next generation of space scientists? Head over to the Astro Pi website to find out more.

Are you keen to print your own case? We have step-by-step instructions to help you do just that. Check out some of the beautiful 3D prints people have created using our guide!

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