Welcome to 3d Electronic Circuits .com.

We are going to be bringing some new concepts to the world of electronics here and are also going to be covering the more general electronic theories and circuits.

My basic theory for building true 3d electronic circuits can be found on “The Theory” page.

I am also hoping to be able to provide you with some electronic designing and project kits.

Keep checking back as this site is brand new and it does take some time to get some content up.

App note: Protecting USB Type-C Cable connectors featuring higher power & tighter pin spacing

Bourns’ built-in thermal cut-off devices adds extra protection from faults directly on USB Type-C cables. Link here (PDF)

The now ubiquitous Universal Serial Bus (USB) standard was initially developed in 1994 with the intent of providing a communication standard to improve and simplify communication between the PC and peripheral devices. An updated version of the USB interface standard is the USB 3.1 Superspeed+, which doubles the data rate to 10 Gbps – a 2x improvement of the previous generation USB 3.0 Superspeed. USB 3.1 Superspeed+ is backwards compatible with USB 1.1, 2.0 and 3.0 with a power delivery projected at 100 W. This gives users enhanced data encoding for more efficient data transfer offering higher throughput and improved I/O power efficiency.

In addition to the increased power capability and bandwidth achieved in this updated USB standard, the connector has been changed. The original simple 4 pin D+/ D- Power and GND format has been upgraded and now combines multiple connector functions into one. The new USB Type-C connector features 24 pins in a smaller form factor.

A downside to this combination of increased power and the extremely tight pin spacing is heightened concern about potential safety and fire hazards due to the possibility of thermal runaway at the connector. To deal with these potential threats, it is recommended that electronic equipment manufacturers and connector and cable manufacturers integrate overcurrent and overtemperature protection into the Type-C connector.

Friday Product Post: Drop Those pHAT Beats

Hello and welcome, everyone! We have a few new products to show off this week, starting with our second version of the Qwiic pHAT for Raspberry Pi, which has been updated to be much more accommodating for robotics and high-power projects! Following that is a new version of the NVIDIA Jetson Nano, now with two MIPI-CSI camera connectors! Rounding out the week is an improved version of the SparkFun moto:bit Carrier Board for micro:bit, and a new Op-Amp IC.

New and improved Qwiic pHAT for your Raspberry Pi!

SparkFun Qwiic pHAT V2.0 for Raspberry Pi

added to your cart!

SparkFun Qwiic pHAT V2.0 for Raspberry Pi

In stock


The SparkFun Qwiic pHAT V2 for Raspberry Pi is the quickest and easiest way to make your way into the Qwiic ecosystem and sti…


The SparkFun Qwiic pHAT V2.0 for Raspberry Pi is the quickest and easiest way to enter into SparkFun’s Qwiic ecosystem while still using that Raspberry Pi you’ve come to know and love. The Qwiic pHAT connects the I2C bus (GND, 3.3V, SDA, and SCL) on your Raspberry Pi to an array of Qwiic connectors on the HAT. Since the Qwiic system allows for daisy-chaining boards with different addresses, you can stack as many sensors as you’d like, to create a tower of sensing power!

NVIDIA Jetson Nano Developer Kit (V3)

added to your cart!

NVIDIA Jetson Nano Developer Kit (V3)



The NVIDIA® Jetson Nano™ Developer Kit delivers the performance to run modern AI workloads at a small form factor, low pow…


The latest addition the Jetson family, the NVIDIA® Jetson Nano™ Developer Kit (V3) delivers the performance to run modern AI workloads in a small form factor, all while being both power-efficient (consuming as little as 5 Watts) and low cost. Developers, learners and makers can run AI frameworks and models for applications like image classification, object detection, segmentation and speech processing. The developer kit can be powered by micro-USB and comes with extensive I/Os, ranging from GPIO to CSI. This makes it simple for developers to connect a diverse set of new sensors to enable a variety of AI applications. This version of the Jetson Nano Developer Kit comes equipped with two MIPI-CSI camera connectors, which enables algorithms that perform stereo vision.

SparkFun moto:bit - micro:bit Carrier Board (Qwiic)

added to your cart!

SparkFun moto:bit – micro:bit Carrier Board (Qwiic)

In stock


The SparkFun moto:bit is a fully loaded carrier board for the micro:bit that provides you with a fully functional robotics pl…


The SparkFun moto:bit is a fully loaded “carrier” board for the micro:bit that, when combined with the micro:bit, provides you with a fully functional robotics platform. The moto:bit offers a simple, beginner-friendly robotics controller capable of operating a basic robotics chassis. Onboard each moto:bit are multiple I/O pins, as well as a vertical Qwiic connector capable of hooking up servos, sensors and other circuits. At the flip of the switch you can get your micro:bit moving!

Op-Amp - AS358P (Through-Hole)

added to your cart!

Op-Amp – AS358P (Through-Hole)

In stock


The AS358P is a great, easy-to-use dual-channel Op-amp. Op-amps have so many [applications](http://en.wikipedia.org/wiki/Oper…


The AS358P is a great, easy-to-use, dual-channel Op-amp. Op-amps have so many applications we figured we should probably carry at least one in a DIP package. AS358P applications include transducer amplifiers, DC gain blocks and all the conventional op-amp circuits.

That’s it for this week! As always, we can’t wait to see what you make! Shoot us a tweet @sparkfun, or let us know on Instagram or Facebook. We’d love to see what projects you’ve made!

comments | comment feed

ICANN Needs To Ask More Questions About the Sale of .ORG

Over 21,000 people, 660 organizations, and now six Members of Congress have asked ICANN, the organization that regulates the Internet’s domain name system, to halt the $1.135 billion deal that would hand control over PIR, the .ORG domain registry, to private equity. There are crucial reasons this sale is facing significant backlash from the nonprofit and NGO communities who make the .ORG domain their online home, and perhaps none of them are more concerning than the speed of the deal and the dangerous lack of transparency that’s accompanied it. 

Less than three months have passed from the announcement of the sale—which took the nonprofit community by surprise—to the final weeks in which ICANN is expected to make its decision, giving those affected almost no chance to have a voice, much less stop it. The process so far, including information that the buyer, Ethos Capital, provided to ICANN in late December, raises more questions than it answers. U.S. lawmakers are correct that “the Ethos Capital takeover of the .ORG domain fails the public interest test in numerous ways.”

Before any change in who operates the .ORG registry can take place, ICANN, which oversees the domain name system, needs to answer important questions about the deal from those who use .ORG domain names as the foundation of their online identity. Working with the nonprofit community, we’re asking ICANN to ask more questions to confirm how the deal will protect .ORG users—questions that are still unanswered. And next week, on January 24th, nonprofits and supporters will protest at ICANN’s headquarters in Los Angeles. You can join us to tell ICANN that it must be more than a rubber stamp.


Tell ICANN: Nonprofits Are Not For Sale

A Dangerous Deal

The Internet Society (ISOC)—which has controlled .ORG for the past 16 years—and Ethos Capital are treating the .ORG registry as an asset that can be bought and sold at will. But ISOC didn’t pay to acquire the .ORG registry—indeed, PIR, the organization that was founded by ISOC to run .ORG was given $5 million to help it do so. Now, ISOC plans to profit off of the value of the registry by converting PIR into a for-profit LLC in the hands of Ethos Capital.

ICANN delegated the task of running .ORG to ISOC in 2002 because ISOC was best positioned to run the domain for the benefit of nonprofit users. The excess funds from .ORG registration fees that have supported the work of ISOC for the past 16 years were a side benefit, not a sacred entitlement. Rather than an asset, like a building, the registry should be thought of as a public function—like the assigning of street addresses. It should be (and has been) administered in the public interest. But in the hands of private equity, the registry will become something altogether different from what it’s been in the past: a tool for making profits from nonprofits.

After the sale, Ethos Capital, having paid $1.135 billion for .ORG to ISOC, will have to recoup that investment on a scale that’s expected of a private equity firm. This week, Ethos revealed for the first time that some $360 million of the purchase price will be financed with a loan. The payments on that loan will have to come out of Ethos’s profits, so they will probably need to raise more money per year than ISOC currently does. While Ethos could try to simply increase the number of its “customers” for .ORGs, PIR has tried this in the past, and the demand for the domains has remained largely flat. This is no surprise; the nonprofit sector just doesn’t grow at exponential rates.

That brings us to the myriad reasons nonprofits have criticized the deal: every other way that Ethos might increase profits is bad news for .ORG users. And these tactics aren’t farfetched: every one of them is already delivering profits in other sectors, often while harming domain registrants and their visitors.

Squeezing Profits from Nonprofits Harms Civil Society

  1. The most obvious way to profit from the registry is for Ethos to raise the annual registration fees on .ORG names. Under pressure, Ethos has promised to keep fee increases to 10% per year “on average.” But they haven’t made that promise legally binding. There won’t be any way for .ORG users to challenge future fee increases without changing domain names, an expensive and risky process well-known to any organization or which has had to shift away from a trusted domain. And even more worrisome, Ethos could begin charging different rates for different domains. Other registries already charge considerably higher fees for names they designate as “premium.” Ethos could base fees entirely on an organization’s ability to pay, essentially holding nonprofits’ domain names for ransom.
  2. Ethos could also engage in censorship-for-profit. As we’ve described before, other domain registries have made deals with powerful corporate interests, like movie studios and pharmaceutical interests, to suspend the domains of websites, even if that means suppressing truthful information. But .ORGs don’t just have corporate interests hoping to control their voices: the world over, including within authoritarian regimes, .ORGs are the home of important critical speech on the Internet. Ethos would have a clear incentive to take down domains at the request of repressive governments, just as governments often demand takedowns of speech on social networks, in exchange for tax or other financial benefits.
  3. Ethos could sell the browsing data of users who visit .ORGs. The operator of a domain registry can, if it chooses, track every look-up of an address within that domain. Ethos could track visits to nonprofit organizations around the world, perhaps to target advertising on behalf of Vidmob, the advertising company they also own, invading the privacy of everyone who visits .ORG websites.
  4. Ethos could cut back on the important technical upkeep of the domains. Domain name lookups must be available worldwide, and quickly. Technical failures can mean being unable to connect to a website, or to send and receive email. This doesn’t just mean 404s: because the .ORG registry is home to relief agencies, news media, and other groups that provide life-saving services, technical failures could result in actual harm. Aid might not reach people in need during a crisis; news and information could be stopped dead during an emergency. The .ORG registry has had no downtime in over a decade. If that changes, it’s not just websites that would be in danger.

Not Enough Safeguards

In response to public pressure, Ethos has made a loose commitment about future pricing. It has also proposed adding text about acting in the public benefit into the “Certificate of Formation” for the new holding company they’re creating. And it’s promised to create a “Stewardship Council” to “help guide” the company’s management.

But there’s no force behind these words. Under corporate law, only the company itself has the power to decide whether it’s acting for the public benefit. Putting vague commitments into a “Certificate of Formation” doesn’t give the users of .ORG domains any mechanism of enforcement. And a “Stewardship Council” will not be able to override the decisions of the company’s owners and management. There’s no guarantee that the council will even be informed about what the company is doing. In fact, PIR already has an advisory council—and it wasn’t even told that the sale to Ethos was going to happen.

Luckily, there are other options on the table. If the .ORG registry needs to change hands, ICANN must take the time to consider all the alternatives, such as the Cooperative Corporation of dot-org Registrants, and determine which organization will best uphold the commitments that were made when .ORG was last re-assigned, in 2002. Instead of a rushed and secretive vote, ICANN should engage in a careful decision-making process that gives all .ORG registrants a voice in decisions around the registry in the future.

The Benefits Are Vague, At Best

In defending the deal, ISOC’s leadership has talked about the good they can do with a $1.1 billion endowment. Those good works, though, don’t excuse breaking trust with thousands of nonprofits. Several proponents of the deal, echoing Ethos’s talking points, claim that turning .ORG into a for-profit registry will lead to “new products and services” for the .ORG community. No one explains what those would be, though, or what they have to do with maintaining a reliable database of domain names. And there is no benefit at all if these vague opportunities in the future come at the cost of functional, censorship-free websites for millions of nonprofits, associations, and clubs around the world. 

ICANN Needs To Ask More Questions

As the group that controls the top level of the domain name system, ICANN has the power to stop .ORG from changing hands, and to name a new organization to steward that important resource. Before the deal goes any further, ICANN needs to ask more questions of ISOC and Ethos. We’ve compiled a handy list.

Anyone who’s concerned about selling a public trust for private profit can sign the petition to #SaveDotOrg, which we’ll be presenting along with other nonprofits to ICANN in person next week. And if you’ll be in the Los Angeles area on Friday, January 24th, come join us at the protest at ICANN’s headquarters, organized by EFF, NTEN, and Fight for the Future. Help us tell ICANN: .ORG is not for sale.


Tell ICANN: Nonprofits Are Not For Sale

Iranian Tech Users Are Getting Knocked Off the Web by Ambiguous Sanctions

Between targeted killings, retaliatory air strikes, and the shooting of a civilian passenger plane, the last few weeks have been marked by tragedy as tensions rise between the U.S. and Iranian governments. In the wake of these events, Iranians within the country and in the broader diaspora have suffered further from actions by both administrations—including violence and lethal force against protesters and internet shutdowns in Iran, as well as detention, surveillance and device seizure at the U.S. border and exacerbating economic conditions from U.S. sanctions. And to make matters worse, American tech companies are acting on sanctions through an overbroad lens, making it much harder for Iranian people to be able to share their stories with each other and with the broader world.

The Office of Foreign Assets Control (OFAC) of the U.S. Department of the Treasury administers and enforces economic and trade sanctions that target foreign countries, groups, and individuals. Some of these sanctions impact the export to Iran (or use by residents of the country) of certain types of technology, although trying to parse precisely which types are affected appears to have left some companies puzzled.

For example, this week Instagram removed a number of accounts from its service that were affiliated with the Iranian Revolutionary Guard Corps (IRGC)—which is specially designated by OFAC—as well as some accounts praising the IRGC and some condemning the group. The platform initially justified its actions stating:

We review content against our policies and our obligations to US sanctions laws, and specifically those related to the US government’s designation of the IRGC and its leadership as a terrorist organization.

While Instagram is indeed obligated to remove accounts affiliated with the IRGC, the law does not extend to unaffiliated accounts providing commentary on the IRGC—although some experts say that posts supporting a specially designated group could be seen as providing support to the group, thus violating sanctions.

In any case, Instagram may choose to remove accounts praising the IRGC under its own community standards. In the end, Instagram ended up restoring at least one account following media criticism.

A long hard road

EFF has long observed tech companies’ struggle with OFAC sanctions. In 2012, an Apple employee refused to sell a laptop to a customer who was overheard speaking Persian, prompting the State Department to issue a clarifying statement:

[T]here is no U.S. policy or law that prohibits Apple or any other company from selling products in the United States to anybody who’s intending to use the product in the United States, including somebody of Iranian descent or an Iranian citizen or any of that stuff.

In 2013, we spoke up when Airbnb booted an Iranian resident of Switzerland from their platform without recourse, resulting in a reversal of the decision.

And now, as tensions between the U.S. and Iran heat up, we’re seeing tech companies booting Iranians from their platforms left and right. For example:

…But are these companies correct in stripping Iranians of their accounts? The answer: It’s complicated.

Iran is subject to certain OFAC sanctions, and in addition to that, the IRGC and certain Iranian nationals are on OFAC’s list of “specially designated nationals.” OFAC sanctions can be interpreted broadly by tech companies, which is why in 2010, the Treasury Department issued a general license intended as a blanket license for the export of “certain services and software incident to the exchange of personal communications over the Internet, such as instant messaging, chat and email, social networking, sharing of photos and movies, web browsing, and blogging, provided that such services are publicly available at no cost to the user.”

In 2014, that license was amended to include even more products, including certain fee-based services “incident to the exchange of personal communications over the Internet” including social networking. The new license, General License D-1, provided greater clarity to companies on what is and is not subject to sanctions. As the National Iranian American Council pointed out in a 2017 letter, General License D-1 has been widely praised for “securing human rights, protecting access to online information, and avoiding government censors.”

As the events of this week demonstrate, companies are still struggling to understand the rules. And understandably so—as Richard Nephew, a sanctions expert and senior research scholar at Columbia University told CNN:

[T]his is a tough gray area as we also have free speech protections too.  This is why I think companies often make mistakes in this area, both by preventing such posts or activities and by allowing them …

But while the rules might be difficult, companies are making things worse by failing to properly communicate to users about why their accounts have been suspended—and by giving misleading or incorrect statements to the media.

Why does this matter?

Sanctions that prevent the free flow of communications on the internet and hamper ordinary the ability of ordinary Iranians to express themselves often harm the very people they’re intended to help. Over the years, we’ve seen how sanctions on tech—as well as misapplication or overbroad application of such sanctions—hurt individuals from all walks of life by denying them access to information and cutting them off from communication with the rest of the world.

After the 2014 issuance of General License D-1 for Iranians, Sudanese citizens embarked on a campaign for a similar license, arguing that sanctions prevented them from accessing e-books, online courses, and other information. In a country where the government bans books and at times seizes newspapers, the knowledge that can be gained online can make all the difference. For Iranians, greater access can also mean safer access—to VPNs, secure messaging apps, and other vital tools.

But it isn’t just access to information—it’s also the information coming out of Iran that’s affected. When a Ukrainian airliner was struck down in Iranian airspace, it was video taken from inside the country—as well as efforts by individuals in Iran—that led to verification that Iran’s government had struck the plane with a missile. As we’ve pointed out before, policies intended to prevent violent extremists from using online services often have the effect of silencing human rights content. And given how little access international media has to Iran, hearing from Iranians about what’s happening on the ground is vital.

Furthermore, Iran has seen fit in the past to shut down the Internet, preventing its residents from accessing the outside world. If the U.S. government truly believes in the internet freedom policy that it continues to pour millions of dollars into, it should see how its own policies are working against freedom and pushing Iranians toward local services that are likely heavily surveilled or censored. As it stands, the U.S. is just helping Iran do the job of silencing its citizens.

A clearer way forward

As moral panic and confusion set in, more and more companies are seeking to enforce sanctions law—and as they do, it’s vital that they have the best possible information at hand so ordinary citizens aren’t unduly impacted. As such, we are reiterating our ask for the Department of Treasury to update General License D-1 and provide guidance to U.S. tech companies to ensure the minimal amount of damage to users.

But although sanctions are hard, we also call on tech companies to exercise both caution and compassion as they navigate these murky waters. Companies should ensure that they’re using the best possible means to identify potentially impacted users; notify them clearly (by providing information about specific statutes and links to relevant information from the Department of Treasury); and most importantly, provide an appeals system so that users who are wrongly identified have a path of recourse to regain access to their accounts.

December 2019 Certified Open Source Hardware

The Open Source Hardware Association (OSHWA) runs a free program that allows creators to certify that their hardware complies with the community definition of open source hardware.  Whenever you see the certification logo, you know that the certified hardware meets this standard. The certification site includes a full list of […]

Read more on MAKE

The post December 2019 Certified Open Source Hardware appeared first on Make: DIY Projects and Ideas for Makers.

The AxiDraw MiniKit

AxiDraw MiniKit

Today we are introducing a brand new member of the AxiDraw family of pen plotters: the AxiDraw MiniKit.

AxiDraw MiniKit
The AxiDraw MiniKit is a special compact addition to the AxiDraw lineup.

Designed for lighter-duty applications, It takes up less desk space and less storage space. With a plotting area of just 6 × 4 inches (150 × 100 mm), it’s small enough to take with you, or to fit into places where bigger machines can’t.

AxiDraw MiniKit
In addition to be being “Mini”, it is also a kit.

Unlike other models of the AxiDraw family like AxiDraw V3 and AxiDraw SE/A3 (which come assembled, tested, and ready to use), the AxiDraw MiniKit is a machine that you assemble yourself.

We’ve taken great care in designing a kit that is rewarding to build and to own.

AxiDraw MiniKit

And of course, it’s an AxiDraw, and performs like one. Small but sturdy, it’s built with custom aluminum extrusions, machined parts, attention to detail, and care.

How to set up and use your brand-new Raspberry Pi

If you’re reading this, it’s probably because you bagged yourself a brand-new Raspberry Pi for Christmas, and you’re wondering what you should do next.

Well, look no further, for we’re here to show you the ropes. So, sit back, pull on a pair of those nice, warm socks that you found in your stocking, top up your eggnog, and let’s get started.

Do I need an operating system?

Unless your Raspberry Pi came in a kit with a preloaded SD card, you’ll need to download an operating system. Find a microSD card (you may have one lurking in an old phone) and click here to download the latest version of Raspbian, our dedicated Raspberry Pi operating system.

To get Raspbian onto the microSD card, use free online software such as Etcher. Here’s a video from The MagPi magazine to show you how to do it.

Use Etcher to install operating systems onto an SD card

Lucy Hattersley shows you how to install Raspberry Pi operating systems such as Raspbian onto an SD card, using the excellent Etcher. For more tutorials, check out The MagPi at http://magpi.cc ! Don’t want to miss an issue? Subscribe, and get every issue delivered straight to your door.

Turn it on!

Here, this video should help:

How to set up your Raspberry Pi || Getting started with #RaspberryPi

Learn #howto set up your Raspberry Pi for the first time, from plugging in peripherals to setting up #Raspbian.

Insert your microSD card into your Raspberry Pi. The microSD card slot should be fairly easy to find, and you need to make sure that you insert it with the contact side facing the board. If you feel like you’re having to force it in, you have it the wrong way round.

Next, plug your HDMI cable into the Raspberry Pi and your chosen HDMI display. This could be a computer monitor or your home television.

If you’re using a Raspberry Pi Zero or Raspberry Pi Zero W, you’ll need a mini HDMI to HDMI cable or adapter.

If you’re using a Raspberry Pi 4, you’ll need a micro HDMI to HDMI cable or adapter.

Raspberry Pi official keyboard

Next, plug in any peripherals that you want to use, such as a mouse or keyboard.

Lastly, plug your power cable into your Raspberry Pi. This is any standard micro USB cable (if you have an Android phone, check your phone charger!), or a USB-C power cable if you’re using the Raspberry Pi 4.

Most kits will come with all of the cables and adapters that you need, so look in the box first before you start rummaging around your home for spare cables.

Once the power cable is connected, your Raspberry Pi will turn on. If it doesn’t, check that your SD card is inserted correctly and your cables are pushed in fully.

Still in doubt? Here’s Sally Le Page with more:

How to use a Raspberry Pi ft. Dr Sally Le Page

What is a Raspberry Pi and what do you need to get started? Our ‘How to use a Raspberry Pi’ explainer will take you through the basics of your #RaspberryPi, and how you can get hands-on with Raspbian and #coding language tools such as Scratch and Mu, with our host, Dr Sally Le Page.

Once on, the Raspberry Pi will direct you through a setup process that allows you to change your password and connect to your local wireless network.

And then, you’re good to go!

Now what?

Now what? Well, that depends on what you want to do with your Raspberry Pi.

Many people use their Raspberry Pi to learn how to code. If you’re new to coding, we suggest trying out a few of our easy online projects to help you understand the basics of Scratch — the drag-and-drop coding platform from MIT — and Python — a popular general-purpose programming language and the reason for the “Pi” in Raspberry Pi’s name.

The components of a virtual analogue Raspberry Pu synthesiser

Maybe you want to use your Raspberry Pi to set up control of smart devices in your home, or build a media centre for all your favourite photos and home movies. Perhaps you want to play games on your Raspberry Pi, or try out various HATs and add-ons to create fun digital making projects.

Sally Le Page

Whatever you want to do with your Raspberry Pi, the internet is full of brilliant tutorials from the Raspberry Pi Foundation and online creators.

Some places to start

Get involved with the Raspberry Pi Foundation

From community events and magazines to online learning and space exploration – there are so many ways to get involved with the Raspberry Pi Foundation.

The Raspberry Pi community is huge, and spreads across the entire globe, bringing people together to share their love of coding, digital making, and computer education. However you use your Raspberry Pi, know that, by owning it, you’ve helped the non-profit Raspberry Pi Foundation to grow, bringing more opportunities to kids and teachers all over the world. So, from the bottom of our hearts this festive season, thank you.

We can’t wait to see what 2020 brings!


The post How to set up and use your brand-new Raspberry Pi appeared first on Raspberry Pi.

Friday Product Post: Make Gold of That

Happy new year and decade, everyone! We’re ringing in the new year with six new FPGA products from Alchitry: two FPGA development boards, three expansion boards, dubbed “Elements,” and a set of headers for them. Let’s jump in and take a closer look at all our our new products for the week.

Quite possibly the Philosopher’s Stone of FPGAs!

Alchitry Au FPGA Development Board (Xilinx Artix 7)

added to your cart!

Alchitry Au FPGA Development Board (Xilinx Artix 7)

Only 5 left!


The Alchitry Au is the gold standard for FPGA development boards and it’s possibly one of the strongest boards of its type on…


Alchitry Cu FPGA Development Board (Lattice iCE40 HX)

added to your cart!

Alchitry Cu FPGA Development Board (Lattice iCE40 HX)

15 available


The Alchitry Cu (Copper) is a “lighter” FPGA version than the Alchitry Au but still offers something completely unique.


The Alchitry Au is the “gold” standard for FPGA development boards, and one of the strongest boards of its type on the market. FPGAs, or Field-Programmable Gate Arrays, are an advanced development board type for engineers and hobbyists alike to experience the next step in programming with electronics. The Au continues the trend of more affordable and increasingly powerful FPGA boards arriving each year. This board is a fantastic starting point into the world of FPGAs and the heart of your next project.

If you don’t need a lot of power to start your FPGA adventure, or are looking for a more economical option, the Alchitry Cu FPGA Development Board might be the perfect option for you! The Alchitry Cu (Copper) is a “lighter” FPGA version than the Alchitry Au but still offers something completely unique.

Alchitry Io Element Board

added to your cart!

Alchitry Io Element Board

25 available


The Alchitry Io Element Board is the perfect way to get your feet wet with digital design.


The Alchitry Io Element Board is the perfect way to get your feet wet with digital design. The Io features four 7-segment LEDs, five momentary push buttons, 24 basic LEDs, and 24 DIP switches. All lend themselves to fantastic beginner tutorials that will walk you through all the basics of FPGAs. Simply snap Element Boards into Alchitry Au or Cu boards to start using them!

Alchitry Br Prototype Element Board

added to your cart!

Alchitry Br Prototype Element Board

Only 8 left!


The Alchitry Br Element Board is a prototyping periphery for the Au or Cu FPGA Development Boards.


Alchitry Br Prototype Element Board (No Top Connectors)

added to your cart!

Alchitry Br Prototype Element Board (No Top Connectors)

21 available


The Alchitry Br Element Board without top connectors is a prototyping periphery for the Au or Cu FPGA Development Boards.


The Alchitry Br Element Board is a prototyping periphery for the Au or Cu FPGA boards. The Br breaks out all the signals on the four headers running from your Au or Cu, and has a large prototyping area with a 0.1″ pin grid for custom circuits. A version without top connectors is also available!

Alchitry Br Female Header Set

added to your cart!

Alchitry Br Female Header Set

In stock


This is a set of four 2×18 female headers with 0.1″-spaced pins for the Alchitry Br Prototype Element Boards.


Last up this week is a set of four 2×18 female headers with 0.1″-spaced pins for the Alchitry Br Prototype Element Boards. These line up exactly with all the broken out holes in the Br prototyping area, making it easy to jump wires to a breadboard or other temporary connections.

That’s it for this week! Happy 2020, everyone! As always, we can’t wait to see what you make! Shoot us a tweet @sparkfun, or let us know on Instagram or Facebook. We’d love to see what projects you’ve made!

comments | comment feed

Build your child a wooden MP3 player for $100

If your young child wants to listen to music, what better way than a beautiful wooden MP3 “radio,” with an array of buttons that select the album? After being inspired by a similar commercial product, Redditor “DerThes” decided to make such a device for a fraction of the cost using an Arduino Uno for control, along with a Music Maker Shield to play tunes off an SD card.

The toddler can select songs from a grid of 16 input buttons, which are sent to the Uno via a pair of shift registers. There’s also a “parent’s mode” with the ability to choose from up to 99 albums, and a volume knob for… adjusting the volume. 

Finally, the unt features a beautiful enclosure made out of oak and black walnut, with corners softened by dowels to reduce collateral damage “after the player has gone airborne.” More details can be seen on Imgur here and on GitHub.

This is an easy to use MP3 player for small children. I made this for my 2 year old for Christmas. Each of the top 9 buttons will play an album. The black buttons on the bottom are prev – play/pause – next. The player also supports an alternative playback mode that can be activated using a special key combination. That combination will turn the buttons into a 10 digit input matrix allowing playback of up to 99 albums. That way the player can be used by parents as well. ?

See GitHub for more details, the schematics for the button PCB and the firmware. https://github.com/MichaelThessel/arduino-stoerbert

This is heavily inspired by Hoerbert: https://en.hoerbert.com

When I first saw the Hoerbert at a friends place I wanted it for my child. After I heard of the $400 price tag I knew that I needed to spend 50 hrs and $100 to build my own.

Friday Product Post: See Ya, 2019!

Good tidings to you and yours! This week we have a lot of new products, so let’s dive in and check them out.

Do you see what I see?

RPLIDAR S1 360° TOF Laser Range Scanner

added to your cart!

RPLIDAR S1 360° TOF Laser Range Scanner

Only 8 left!


The RPLIDAR S1 is the next generation of 360° 2D LIDARs that can take up to 9200 samples of laser ranging per second thanks …


The RPLIDAR S1 is the next generation, low cost, 360-degree 2D laser scanner (LIDAR) solution developed by SLAMTEC. It can take up to 9200 samples of laser ranging per second with high rotation speed. Equipped with SLAMTEC-patented OPTMAG technology, it goes above and beyond the lifespan limitations of traditional LIDAR systems.

FLIR Radiometric Lepton Dev Kit V2

added to your cart!

FLIR Radiometric Lepton Dev Kit V2

In stock


With the FLIR Radiometric Lepton Dev Kit you will be able to bring FLIR’s thermal imaging reliability and power to your desir…


With the FLIR Radiometric Lepton® Dev Kit V2, you will be able to bring FLIR’s thermal imaging reliability and power to your Arduino, Raspberry Pi or any ARM-based development tool, all in an easy-to-access, breadboard-friendly package. This kit includes a breakout as well as the Lepton® 2.5 longwave infrared (LWIR) imager. All you need to do to get this kit set up is attach the Lepton® imager module to the provided breakout, connect the headers, and you will be seeing in full darkness in no time!

Aluminum Heatsink Case for Raspberry Pi 4 - Red

added to your cart!

Aluminum Heatsink Case for Raspberry Pi 4 – Red

In stock


This red, anodised aluminium case for the Raspberry Pi 4 will give you 10-15°C of passive cooling under a full CPU load.


Aluminum Heatsink Case for Raspberry Pi 4 - Purple

added to your cart!

Aluminum Heatsink Case for Raspberry Pi 4 – Purple

In stock


This purple, anodised aluminium case for the Raspberry Pi 4 will give you 10-15°C of passive cooling under a full CPU load.


Aluminum Heatsink Case for Raspberry Pi 4 - Green

added to your cart!

Aluminum Heatsink Case for Raspberry Pi 4 – Green

In stock


This green, anodised aluminium case for the Raspberry Pi 4 will give you 10-15°C of passive cooling under a full CPU load.


Aluminum Heatsink Case for Raspberry Pi 4 - Blue

added to your cart!

Aluminum Heatsink Case for Raspberry Pi 4 – Blue

In stock


This blue, anodised aluminium case for the Raspberry Pi 4 will give you 10-15°C of passive cooling under a full CPU load.


Why use a heatsink and a case when you can use a heatsink case?! These red, purple, green and blue anodised aluminium cases for the Raspberry Pi 4 will give you 10-15°C of passive cooling under a full CPU load. These cases are great for situations where you want completely silent cooling, like home media centers. Make sure to check out all of our aluminum heatsink case color options!

Zio Qwiic OLED Display (1.5inch, 128x128)

added to your cart!

Zio Qwiic OLED Display (1.5inch, 128×128)

Only 1 left!


Here is the Zio Qwiic 1.5inch 128 x 128 pixels OLED display module.


Zio Qwiic Loudness Sensor

added to your cart!

Zio Qwiic Loudness Sensor

Only 12 left!


The Zio Qwiic Loudness Sensor is an I2C device making it easy to measure the noise level in your next project.


Last up this week, we have two new Qwiic boards from our friends over at Zio! The first is a 128×128 Qwiic OLED board and the second is a Qwiic sound detector! Make sure to check them both out if you are adding to your Qwiic project!

That’s it for this week! As always, we can’t wait to see what you make! Shoot us a tweet @sparkfun, or let us know on Instagram or Facebook. We’d love to see what projects you’ve made!

comments | comment feed