Monthly Archives: September 2019

Tinkernut’s Raspberry Pi video guide

via Raspberry Pi

“If you’ve ever been curious about electronics or programming, then the Raspberry Pi is an excellent tool to have in your arsenal,” enthuses Tinkernut in his latest video, Raspberry Pi – All You Need To Know.

And we aren’t going to argue with that.

Raspberry Pi – All You Need To Know

If you keep your ear to the Tinkering community, I’m sure you’ve heard whispers (and shouts) of the Raspberry Pi. And if you wanted to get into making, tinkering, computing, or electronics, the Raspberry Pi is a great tool to have in your tool belt. But what is it?

“This Pi can knit a Hogwarts sweater while saving a cat from a tree,” he declares. “It can recite the Canterbury Tales while rebuilding an engine.” Tinkernut’s new explainer comes after a short hiatus from content creation, and it’s a cracking little intro to what Raspberry Pi is, what it can do, and which model is right for you.

“This little pincushion, right here”

Tinkernut, we’re glad you’re back. And thank you for making us your first subject in your new format.

If you like what you see, be sure to check out more Tinkernut videos, and subscribe.

The post Tinkernut’s Raspberry Pi video guide appeared first on Raspberry Pi.

FM stereo radio receiver with RDS

via Dangerous Prototypes

Dilshan Jayakody has published a new build:

This tuner circuit is a quick prototype which I build to test the RDA5807M FM radio tuner IC. RDA5807M is a single-chip tuner IC with RDS and MPX decoder, and it equipped with I2C interface for control.
This receiver builds around Atmel’s ATmega16A 8-bit MCU. The output stage of this design consists of AN7147N, 2×5.3W audio power amplifier.

See the full post on his blog.

Another snazzy Raspberry Pi wallpaper for your phone and computer

via Raspberry Pi

After the success of our last snazzy wallpaper for your computer and smartphone, Fiacre is back with another visual delight.

Click one of the images below to visit the appropriate download page!

Standard rules apply: these images are for personal use only and are not to be manipulated, printed, turned into t-shirts, glazed onto mugs or sold.

Let us know in the comments if you decide to use the wallpaper, or tag a photo with #SnazzyRPi on Twitter and Instagram.

The post Another snazzy Raspberry Pi wallpaper for your phone and computer appeared first on Raspberry Pi.

It’s Almost Open Source Hardware Month! Come Celebrate with Us October 1st

via SparkFun: Commerce Blog

We're kicking off Open Source Hardware Month with a panel of heavy OSHWA hitters from Colorado's front range. The evening, co-sponsored by SparkFun and OSHWA, will include the panel, followed by a mixer to connect open hardware enthusiasts. We’ll bring the refreshments, you bring a question for the panel or a project to share! The details:

  • What: Open Source Hardware Month kick-off event: open mixer and panel @ SparkFun
  • Date: Tuesday, October 1st
  • Time: 5:30 — 8:00 p.m.
    • 5:30 p.m.: Grab snacks, network, settle in
    • 6:00 — 7:00 p.m.: Panel
    • 7:00 — 8:00-ish: Networking
  • Location: SparkFun Electronics, 6333 Dry Creek Parkway, Niwot, CO 80503
  • Panelists:
    • Alicia Gibb, founder and executive director of the Open Source Hardware Association (OSHWA)
    • Arielle Hein, artist, technologist, educator
    • Harris Kenny, principal at Kenny Consulting Group
    • Toni Klopfenstein, open source supporter and developer advocate at Google
    • Nathan Seidle, founder and engineer at SparkFun Electronics

SparkFun and Open Source

From the beginning, open hardware has been a pillar of SparkFun. Our products and resources carry no patents, so anyone can use, modify and even sell them. Being open source encourages people to share and learn from each other. It also forces us to focus on what we do best and constantly innovate. In short, it makes us better, for you and for the world. Watch our founder, Nathan Seidle, speak on open source hardware.

Open Source Hardware Resources from OSHWA

The Open Source Hardware Association (OSHWA) is a non-profit organization that advocates for open source hardware, and acts as a hub of open source hardware activity of all types. If you are interested in open hardware, you may be interested in some of the resources on the OSHWA web site:

  • Open Source Hardware month across the globe
  • Definition of Open Source Hardware
  • OSHWA Certification process

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  • Limits to Distributed Manufacturing

    via Open Source Ecology

    I asked Dr. Joshua Pearce from the Michigan Tech’s Lab in Open Sustainability Technology: What kind of reception have you gotten on your 3D Printers Save You Money paper? Dr. Pearce is a leader in open source 3D printer research. The question remains: if 3D printing saves you money on making practical products, why is nobody doing it? Discuss this more at the OSE Workshops FB page.
    For the most part pretty postive – lots of press – see list at bottom. There was some skepticicm – -mostly from people that had some experience that was bad with 3DP. We did another article where we took aim at some of the criticism (e.g. normal people could not build a 3DP )– so we used a Lulzbot to replicate the study — same results: Emily E. Petersen and Joshua Pearce. Emergence of Home Manufacturing in the Developed World: Return on Investment for Open-Source 3-D PrintersTechnologies 2017, 5(1), 7; doi:10.3390/technologies5010007
    It seems that people are not catching or acting on the potential of 3D printers.
    It is still most engineers – but I think there has been a lot of build out in schools, community centers, makerspaces and the like ….even many libraries now have it as a service….so it is coming…but the OS fall of Makerbot really hurt us in terms of speed of uptake.
    Do you have thoughts on what is currently missing for practical production (ie, billions of $ of product, or at least 1% of the plastic industry) to happen more often with 3D printing as part of the circular economy?
    I have looked at these numbers – we still need a lot more growth in 3DP – this means more printers, more good designs, more trust in them. We are working on AI/machine vision correction of printing errors in real time…that should help. More low cost high quality machines will do – but it looks like most non-chinese firms are moving up the food chain away from prosumers.
    My thoughts are: 1. lack of quality curated design repositories, 2. lack of uniform production engineering 3. lack of 3D printers with high-temperature print chamber 4. Lack of reliable filament production/recycling infrastructure knowhow.
    1. is a real problem – we need a NPO to set up something equivalent to thingiverse but have it free from all IP and leaching concerns. See my wish list
    2. hoping the ai/mv work we are doing will address this
    3. We have 1 and are building a second to make it more replicable — <$1k
    4. This is a major issue — I am now of the mind to move away from filament — when dealing with waste recycling – you essentially have to get 2 things right…the printing and the filament …and the latter is actually really hard with non uniform feedstock….we are moving rapidly to FPF work with re:3D and working on a high T version  (3) and a desktop model….
    I’d like to prepare a compelling documentation of 3D printable items for a promo video that shows the full power of 3D printing. Have you curated/created more updated 3D Printable Product lists that you could share?
    We have done a lot of examples — it really depends on what market you want to aim at. If you have an idea I can send over anything we have done – -best is to use Yeggi for general ideas. The higher quality designs are normally showcased on the various sites.
    What is the best example of an on-demand printing service that you’ve seen that is producing common (not custom) 3d printed consumer objects?
    Shapeways is probably the leader in that space.
    Here is a boatload of feedback on the article in the media:

    5.1 International

    in America and the Caribbean












    Costa Rica

    The post Limits to Distributed Manufacturing appeared first on Open Source Ecology.

    Compliance, and why Raspberry Pi 4 may not be available in your country yet

    via Raspberry Pi

    In June we launched Raspberry Pi 4, and it has been selling extremely well, with over 1 million devices already made. We launched the product in a select set of countries in June, and ever since, we’ve been steadily making it available in more and more places; currently, Raspberry Pi 4 is on the market in 55 countries.

    Raspberry Pi 4 and compliance

    There have been many questions around why Raspberry Pi 4 isn’t available in certain countries, and this post will give you some insight into this.

    Whenever a company wants to sell a product on a market, it first has to prove that selling it is safe and legal. Compliance requirements vary between different products; rules that would apply to a complicated machine like a car will, naturally, not be the same as those that apply to a pair of trainers (although there is some overlap in the Venn diagram of rules).

    Raspberry Pi Integrator Programme

    Regions of the world within each of which products have to be separately tested

    Different countries usually have slightly different sets of regulations, and testing has to be conducted at an accredited facility for the region the company intends to sell the product in.

    Compliance for a country is broken into the following: testing, certification, and marking.


    Compliance testing requirements vary from country to country; there is no single set of tests or approvals that allow you to sell a product globally. Often, it’s necessary to test the product within the country that compliance is needed for; only some countries accept test reports from other countries.

    For the launch of Raspberry Pi 4, we tested to EU, FCC (USA), and IC (Canada) regulations, and we’ve used these test reports to apply for compliance in as many countries as possible.


    Once testing is complete, a certificate is issued for the product. The time this takes is variable, and some countries post such certificates online publicly so people can search for products.

    Testing in the remaining countries that require testing to happen in-country is now complete, and the respective certificates are being granted for Raspberry Pi 4 right now. However, whilst the certificate is being issued, the product isn’t yet compliant; we need to add the regulatory markings for this to happen.


    Like testing requirements, product marking requirements may differ from country to country. The main difficulty of marking is that many countries require a unique certificate number to be printed on packaging, leaflets, and the product itself.

    Some countries, such as the USA, allow companies to create the certificate number themselves (hence jazzy numbers like 2ABCB-RPI4B), and so we can place these on the product before launch. In other countries, however, the certificate number is issued at the end of the certification process.

    For Raspberry Pi 4, we are now at the final stage for compliance: marking. All our certificates have been issued, and we are updating the packaging, leaflet, and product with the various certificate numbers needed to unlock the last few countries.

    The countries that we have certificates for that require markings to be added: China, South Korea, Brazil, Mexico, Taiwan, Chile, and Japan.

    The process is beginning, and Raspberry Pi 4 should be available in these markets soon.

    We post all our product compliance information online.


    This is a broad overview of the compliance process for Raspberry Pi, and there are some details omitted for the sake of clarity. Compliance is a complex and varied task, but it is very important to demonstrate that Raspberry Pi 4 is a compliant, safe, and trustworthy product.

    We aim to make Raspberry Pi 4 available in more countries than ever before, ensuring that everyone can take advantage of the amazing features, power, and cost-effectiveness it offers.

    The post Compliance, and why Raspberry Pi 4 may not be available in your country yet appeared first on Raspberry Pi.