Even on the go, there is no substitute for a physical keyboard with buttons that move and click. Sure, you could solder a bunch of tactile switches to some perfboard, but how about going all out and making something robust as [Anthony DiGirolamo] did for his Teensy Thumboard. Everything is insertion-mount so it is an approachable project for anyone who knows the dangerous end of a soldering iron, and that also makes it easy to hack on.
Each pin of the Teensy has an adjacent empty hole tied to it for easy access, and the serial data pins are exposed at the top of the board. All the holes use standard 0.1″ (2.54mm) spacing. The I/O points used by the keyboard are labeled, and the rest of them can use the space under the controller where proto-board style holes add some extra space for an IMU or whatever sensors suit your slant.
Most impressive is the shell, which is freely available on Thingiverse, where you can also find a bill of materials with links to everything you will need in case you don’t have drawers full of those tactile switches.
If this looks familiar, you have probably seen the PocketCHIP, and it is no secret that this project is an homage to that versatile pocket computer. We appreciate this kind of love for PocketCHIP, especially since they are now a limited commodity.
There have been so many launches of very capable little single-board computers, that it is easy to forget an individual one among the crowd. You probably remember the C.H.I.P though, for its audacious claim back in 2015 to be the first $9 computer. It ran Linux, and included wireless connectivity, composite video output, and support for battery power. As is so often the case with ambitious startups, progress from the C.H.I.P’s creator Next Thing Co came in fits and starts.
In recent months there has been something of a silence, and now members of the community have discovered evidence that Next Thing CO are the subject of a Notice of General Assignment from Insolvency Services Group. This is followed up by the discovery that their office is available for rent.
A process called Assignment to the Benefit of Creditors is an alternative to bankruptcy proceedings yet still signals the end of a company as the service liquidates remaining assets. Despite the website and forum remaining online it appears that we may have seen the end of the C.H.I.P. and its stablemates. Hackaday has reached out to Next Thing Co for comment and will update this article if we hear back.
At the time it was launched, the C.H.I.P. was a pretty impressive product, and though it has since been eclipsed by products like the Raspberry Pi Zero, the board remains a useful item. The addition of the PocketCHIP all-in-one keyboard and display peripheral made it an instantly recognizable device, and it and its more powerful companion C.H.I.P. Pro module found their way into quite a few projects. For us the most impressive C.H.I.P. project is a retrocomputer, this miniature Apple II complete with monitor. If this really is the end for this particular little board, we’ll be sorry to see it go.
Thanks [smerrett79] for the tip.
Header image: Kiwamu Okabe [CC BY-SA 2.0].
Conferences these days can be tricky places to be at – especially hardware and hacker cons. If you aren’t the one doing the hacking, then you can be sure your devices are being probed, pinged and possibly, hacked. It certainly isn’t the place to bring your precious laptop. Besides, as the day wears on and your feet start aching, regular laptops start feeling bigger and heavier. What you need is a burner laptop – one that is lightweight, cheap and that you don’t mind getting hacked. [dalmoz] wrote a short, to-the-point, tutorial on making use of PocketCHIP as a hardware-hacker’s best friend when it comes to UART connections. It’s also handy to use as a stand alone serial monitor for your projects without having to dedicate a USB port and screen real estate.
The PocketCHIP is a dock for the C.H.I.P. microcomputer and adds a LED backlit touchscreen display, QWERTY keyboard and LiPo battery in a lightweight, molded case. For $70, you get a 1 GHz ARM v7 processor, 512MB RAM, Mali 400 GPU, WiFi and Bluetooth. It’s light enough to be hung around your neck via its lanyard slot. And all of the GPIO pins are conveniently broken out, including the UART pins. Right now, it’s in the hands of Kickstarter backers, but the Next Thing Co website indicates availability sometime this month.
On the hardware side, all you need to do is add header pins to TX, RX and GND (and maybe 5 V and 3 V if required) on the PocketCHIP GPIO header and you’re good to go. On the software side, things are equally easy. The UART pins are meant to provide debug access to the CHIP itself and need to be released from internal duty. Once the UART port is identified, a single terminal command frees its status as a debugging interface. After that, use any terminal emulator – [dalmoz] recommends Minicom – and you’re all set. In the unlikely event that all you have is an Arduino lying around, [dalmoz] posted a simple sketch that can be used to make sure you have it working. Great hacking tip, ’cause it is as simple as it gets. If you’d like to know more about the CHIP project, check out its documentation and Github repository – it’s all open source.