bluepill

11 Articles

The BluePill board used for this hack, wired to the DYMO RFID reader, after all the wires for this hack have been soldered onto the BluePill board.

#FreeDMO Gets Rid Of DYMO Label Printer DRM

March 30, 2022 by 49 Comments

DYMO 550 series printer marketing blurb says “The DYMO® LabelWriter® 550 Turbo label printer comes with unique Automatic Label Recognition™”, which, once translated from marketing-ese, means “this printer has DRM in its goshdarn thermal stickers”. Yes, DRM in the stickers that you typically buy in generic rolls. [FREEPDK] didn’t like that, either, and documents a #FreeDMO device to rid us of yet another consumer freedom limitation, the true hacker way.

The generic BluePill board and two resistors are all you need, and a few extra cables make the install clean and reversible – you could definitely solder to the DYMO printer’s PCBs if you needed, too. Essentially, you intercept the RFID reader connections, where the BluePill acts as an I2C peripheral and a controller at the same time, forwarding the data from an RFID reader and modifying it – but it can also absolutely emulate a predetermined label and skip the reader altogether. If you can benefit from this project’s discoveries, you should also take a bit of your time and, with help of your Android NFC-enabled phone, share your cartridge data in a separate repository to make thwarting future DRM improvements easier for all of us. Continue reading “#FreeDMO Gets Rid Of DYMO Label Printer DRM” →

Fix Your Nokia’s White Screen Of Death

May 9, 2021 by 17 Comments

Today the Nokia brand can be found on a range of well-screwed-together Androind phones and a few feature phones, but as older readers will remember that before their descent into corporate chaos and the Windows Phone wilderness, there was once a time when the Finnish manufacturer dominated the mobile phone landscape and produced some of the most innovative and creative handset designs ever created. It’s for some of these that [Michael Fitzmayer] has done some work providing tools revive the devices from an unfortunate bricking.

The N-Gage was the phone giant’s attempt to produce a handset that doubled as a handheld game console, and though it was a commercial failure at the time it has retained a following among enthusiasts. The flaw comes as its Symbian operating system fills its user partition, at which point the infamous “White Screen Of Death” occurs as the device can no longer reboot. Rewriting the flash chip used to be handled by Nokia service tools, but these can no longer be found. His fix substitutes a “Blue pill” STMF103-based dev board that connects to the Nokia FBus serial port and does its job. It’s possible that it could be used on other Symbian devices, but for now it’s only been tested on the N-Gages.

It’s easy to forget when a smartphone is defined by iOS and Android, that Symbian gave us a smartphone experience for the previous decade. For those of us who still pine for their miniaturised Carl Zeiss Tessar cameras and candybar form factors, it’s good to see them receiving some love.

Thanks [Razvan] for the tip.

Bluepill Copies Code So You Don’t Have To

July 17, 2020 by 5 Comments

You really should learn to read Morse code. But if you can’t — or even if you can, and just want a break — you can always get a computer to do it. For example, [jmharvey1] has a decoder that runs on a cheap Bluepill dev board.

The device uses a touchscreen and a few common components. The whole thing cost about $16. You can see it at work along with a description of the project in the video below.

Continue reading “Bluepill Copies Code So You Don’t Have To” →

Hackaday Podcast 053: 1-Bit Computer Is A Family Affair, This Displays Is Actually Fabulous, And This Hoverboard Is A Drill Press

February 7, 2020 by 3 Comments

Hackaday editors Mike Szczys and Elliot Williams navigate the crowded streets of the hackersphere for the most interesting hardware projects seen in the past week. Forget flip-dot displays, you need to build yourself a sequin display that uses a robot finger and sequin-covered fabric to send a message. You can do a lot (and learn a lot) with a 1-bit computer called the WDR-1. It’s never been easier to turn a USB port into an embedded systems dev kit by using these FTDI and Bluepill tricks. And there’s a Soyuz hardware teardown you don’t want to miss.

Take a look at the links below if you want to follow along, and as always tell us what you think about this episode in the comments!

Take a look at the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Direct download (60 MB or so.)

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Continue reading “Hackaday Podcast 053: 1-Bit Computer Is A Family Affair, This Displays Is Actually Fabulous, And This Hoverboard Is A Drill Press” →

Blue Pill Makes Cheap But Powerful Morse Tutor

August 7, 2019 by 2 Comments

[W8BH] attended a talk by another ham, [W8TEE] that showed a microcontroller sending and receiving Morse code. He decided to build his own, and documented his results in an 8 part tutorial. He’s using the Blue Pill board and the resulting device sends code with paddles, sends canned text, provides an LCD with a rotary knob menu interface, and even has an SD card for data storage.

All the code is on GitHub. If you are interested in Morse code or in learning how to write a pretty substantial application using the Blue Pill and the Arduino IDE (or any other similar processor), this is a great exposition that is also a practical tool.

Continue reading “Blue Pill Makes Cheap But Powerful Morse Tutor” →

Venabili Is The Delightful Keyboard You Can’t Buy

March 19, 2019 by 31 Comments

If you code or write a lot, you live or die with your keyboard. The Venabili web site calls Venabili “the delightful keyboard” which begs the question: what makes a keyboard delightful. The site continues:

“Venabili is a 40% mechanical, programmable, ergonomic and hackable computer keyboard.

Being a fully programmable keyboard, it gives you the ability to create layers of functionality, declare multifunction keys that can operate as both modifiers and normal keys, control the mouse, define macros, and more.”

Sounds at least 40% delightful, right? Where do you buy one? You don’t. The keyboard is a set of plans and like a Jedi lightsaber, you have to build your own. Continue reading “Venabili Is The Delightful Keyboard You Can’t Buy” →

Quadcopter Uses Bare Metal STM32

March 11, 2019 by 7 Comments

[Tim Schumacher] got a Crazepony Mini quadcopter and has been reprogramming it “bare metal” — that is to say he’s programming the STM32 without using an operating system or do-it-all environment. His post on the subject is a good reference for working with the STM32 and the quadcopter, too.

If you haven’t seen the quadcopter, it is basically a PC board with props. The firmware is open source but uses the Keil IDE. The CPU is an STM32 with 64K of program memory. In addition, the drone sports a wireless module, a digital compass, an altimeter, and a gyro with an accelerometer.

Although the post is really about the quadcopter, [Tim] also gives information about the Blue Pill which could be applied to other STM32 boards, as well. On the hardware side, he’s using a common USB serial port and a Python-based loader.

On the software side, he shows how to set up the linker and, using gcc, control output ports. Of course, there’s more to go to work the other peripherals, and Tim’s planning to investigate CMSIS to make that work easier. Our earlier post on STM32 prompted [Wassim] over on Hackaday.io to review a bunch of IDEs. That could be helpful, too.