Pew Pew In The Palm Of Your Hand

It’s often said that “getting there is half the fun”, and we think that can be just as true when building hardware as it is during the roadtrip to your favorite hacker con. Many of us enjoy the process of planning, designing, and building a new gadget as much as playing with it when it’s done. We get the impression [Radomir Dopieralski] feels the same way, as he’s currently working on yet another iteration of his PewPew project.

For the uninitiated, [Radomir] has already created a number of devices in the PewPew line, which are designed to make programming games on “bare metal” easier and more approachable for newcomers by using CircuitPython.

The original version was a shield for the Adafruit Feather, which eventually evolved into a standalone device. The latest version, called the M4, includes many niceties such as a large TFT screen and an acrylic enclosure. It’s also switched over to the iconic Game Boy layout, to really drive home that classic gaming feel.

As [Radomir] explains, previous versions of the PewPew were designed to be as cheap and easy to manufacture as possible, since they were to be used in game programming workshops. But outside of that environment, they left a little something to be desired. With the M4, he’s created something that’s much closer to a traditional game system. In that respect it’s a bit like the Arduboy: you can still use it to learn game development, but it’s also appealing enough that you might just play other people’s games on it instead.

A Friendly Reminder That You Might Be In Danger

Product recalls are one of those things that most people don’t pay attention to until things get really bad. If it’s serious enough for somebody to get hurt or even die, then the media will pick it up, but most of the time they simply pass by in silence. In fact, there’s a decent chance that you own a recalled product and don’t even know it. After all, it’s not like anyone is actually watching the latest product recalls in real-time.

Well actually, there might be one guy. [Andrew Kleindolph] has created a cute and cuddly gadget using CircuitPython on the Adafruit PyPortal to display the latest release from the United States Consumer Product Safety Commission (USCPSC). In a wonderfully ironic touch, the child’s unicorn boot that the device lives in is itself a recalled product; apparently kids could pull off the “horn” and choke on it.

The PyPortal is basically built for this kind of thing, allowing you to easily whip up a display that will scrape data from whatever online source you’re willing to write the code for. All [Andrew] had to do was pair it with a battery so the boot could go mobile occasionally (we’re told they’re made for walkin’), and design some 3D printed accoutrements such as a screen bezel and charging port.

As these recalls (thankfully) don’t come out quite so fast that you need it to update more than once or twice a week, it seems like this could also be an excellent application for an Internet-connected e-ink display.

Workbench Fume Extractor Sucks, But Has A Charming Personality

Shop safety is important regardless of what kind of work you do. For those of us soldering, that means extracting the noxious fumes released by heating up the solder flux used in our projects. [yesnoio] brings to us his own spin on the idea of a fume extractor, and it pulls out all stops with bells and whistles to spare.

The Workbench Assistant bot, as [yesnoio] describes it, is an integrated unit mounted atop a small tripod which extends over the working area where you’re soldering. Inside the enclosure are RGBW lights, an IR camera, and an Adafruit ItsyBitsy M4 Express driving the whole show. Aside from just shining a light onto your soldering iron though, the camera senses thermal activity from it to decide when to ramp up the server-grade fan inside which powers the whole fume extraction part of the project.

But the fun doesn’t stop there, as [yesnoio] decided to go for extra style points. The bot also comes with an amplified speaker, playing soundbites whenever actions such as starting or stopping the fan are performed. These soundbites are variations on a theme, like classic Futurama quotes or R2-D2’s chattering from Star Wars. The selectable themes are dubbed “performers”, and they can be reprogrammed easily using CircuitPython. This is a neat way to give your little desktop assistant some personality, and a fun way to break up the monotony of soldering up all those tiny SMD components on your next prototype.

If even after all this you still need more than just a cute little robotic voice beeping at you to convince you to get a fume extractor for your bench, then maybe some hands-on results could give you that little push you need. And if you’re already convinced and want to build your own, there is no shortage of DIY solutions we’ve seen around here at Hackaday. Check out this one in action after the break!

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The PewPew Console Is Coming To EuroPython 2019

EuroPython is a community-run developer conference, which began back in Belgium in 2002. In 2019, it’s happening in Basel, Switzerland from July 8 to 14, and there’s a special surprise in store for attendees this year. Conference attendees with be provided with a PewPew console for their hacking pleasure!

An earlier version of the PewPew handheld. There have been many and varied revisions of the hardware.

We’ve featured the project before on these hallowed pages; the earlier PewPew Featherwing console was a finalist in the 2017 Hackaday Prize Best Product Competition. At EuroPython, attendees will get to tinker with a special conference edition, which is the latest version of a long line of development versions. It runs the same microcontroller – ATSAMD21E18A – as the Adafruit Trinket M0, and is programmable with CircuitPython. The conference edition comes with a large 60 mm x 60 mm LED matrix, as well as an orange PCB with blue buttons to match the color scheme of the event.

We wager that conference attendees will enjoy hacking on the handheld console, and it makes a great platform for anyone who is new to embedded development with the Python language. Similar to badges, it makes a great pack-in for patrons, and the conference should be all the more enjoyable for it!

Python And The Internet Of Things Hack Chat

Join us Wednesday at noon Pacific time for the Python and the Internet of Things Hack Chat!

Opinions differ about what the most-used programming language in right now is, but it’s hard to deny both the popularity and versatility of Python. In the nearly 30 years since it was invented it has grown from niche language to full-blown development environment that seems to be everywhere these days. That includes our beloved microcontrollers now with MicroPython, and Adafruit’s CircuitPython, greatly lowering the bar for entry-level hackers and simplifying and speeding development for old hands and providing a path to a Python-powered Internet of Things.

The CircuitPython team from Adafruit Industries – Dan Halbert​, Kattni Rembor​, Limor “Ladyada” Fried​, Phillip Torrone​, and Scott Shawcroft – will drop by the Hack Chat to answer all your questions about Python and the IoT. Join us as we discuss:

  • How CircuitPython came to be;
  • The range of IoT products that support Python;
  • Getting started with Python on IoT devices; and
  • What’s on the horizon for a Python-powered IoT?

And as extra enticement, we’ll be giving away five free one-year passes to ​Adafruit.io​! We’ll draw five names at random from the list of Hack Chat attendees. Stop by for a chance to win. And, the Adafruit team will be streaming video live during the Hack Chat as well.

You are, of course, encouraged to add your own questions to the discussion. You can do that by leaving a comment on the Python and the Internet of Things Hack Chat and we’ll put that in the queue for the Hack Chat discussion.

join-hack-chatOur Hack Chats are live community events on the Hackaday.io Hack Chat group messaging. This week we’ll be sitting down on Wednesday, April 3, at noon, Pacific time. If time zones have got you down, we have a handy time zone converter.

Click that speech bubble to the right, and you’ll be taken directly to the Hack Chat group on Hackaday.io. You don’t have to wait until Wednesday; join whenever you want and you can see what the community is talking about.

Want a quick peek at what’s possible with CircuitPython? Check out this PyPortal event countdown timer that just happens to be counting down the hours till the next Hack Chat.

Hacking Hackaday.io From CircuitPython

If you’ve ever engaged in social media, you’re familiar with the little thrill you receive when your post, tweet, or project gets a like. But, if logging in feels like too much overhead to obtain your dopamine reward, [pt’s] CircuitPython Hackaday portal may be just what you’re looking for. This project creates a stand-alone counter to display the number of “skulls” (aka likes) received by a project on hackaday.io, and of course, it’s currently counting its own.

The code is running on a SAMD51 (Cortex M4) microcontroller and serving up the skulls on 240×320 TFT display. For WiFi connectivity, the project uses an ESP-32 controlled through the usual AT command set. All the gory details of this interaction are abstracted away by a CircuitPython library, which is great because that code really isn’t something you want to write for every project. The program accesses the hackaday.io API to retrieve the number of skulls for the project, but could be easily modified to interface with any service that returned a JSON result.

We’ve been seeing a lot of CircuitPython code lately. Just in case you’re not familiar with it, CircuitPython is Adafruit’s version of Micropython, a python language targeted at embedded processors. While it sounds like something concocted purely to make old-school embedded-C programmers grumble, it’s actually powerful and convenient for embedded prototyping and development. Fueled by the speed of the latest inexpensive microcontrollers and a rapidly growing set of libraries that take the sting out of using integrated peripherals and common hacker-friendly parts, it offers a solid alternative to older embedded frameworks. There are lots of examples around if you want to get started, and we’re maintaining our own list of CircuitPython projects over on hackaday.io that you can check out.

You can see a video of the display after the break. It’s not a live stream, so you won’t see your like appear on the display, but rest assured, [pt] will!

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Code On Your Phone With CircuitPython Editor

[foamyguy] loves Python and messing around with electronics. Boards such as Adafruit’s Circuit Playground Express make it easy for him to take both anywhere. He recently found himself wanting to program Circuit Python boards in the field, but doesn’t always have a laptop on him. So he created an Android app to make on-the-go programming fast and easy.

Using CircuitPython Editor and one or two USB cables, you can program Circuit Python boards with most Android device, including Tinkerboards. It features serial communication, a basic code editor, and a REPL sandbox for code-based castle building. [foamyguy]’s most recent addition to this work in progress is a macro creation tool that lets you edit and store modular, repeatable tasks, like turning all the NeoPixels blue, or lighting them up in a smiley face pattern. The Circuit Python board will draw its power from the Android device, so keep that in mind before you program some crazy light show.

You can get the app in the Play store or download it directly from the ‘hub. If you have any trouble setting it up, check out [foamyguy]’s Adafruit guide.