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2024/12/03 (updated 2024/12/04)
Prototype Demonstration: Sample Code and Demo Program
Flyer at library’s door / Scrolling down the page at 400Hz refresh rate ...
The prototype demonstration took place in front of a friendly and well
interested audience (two ladies, two gentlemen) – it was a nice,
encouraging experience!
Display code and demo program are now
available with the Zerocat Dev Kit project.
2024/11/19 (updated 2024/11/21)
Save the Date: 2024, November 29th, 16-18h
Prototype Demonstration of Zerocat’s 10×64 LED Display
Host: Public library Janusz-Korczak-Bibliothek, event room
Where: Germany, 13187 Berlin, Berliner Straße 120-121, S+U Pankow
Entrance: open for everyone, free of charge!
Language: a mix of german and english
Dear folks and hacker fellows on the road towards a free-design word processor device:
Let’s regain digital sovereignty! Come and watch the demonstration of Zerocat’s 10×64 LED Display – a hand-made prototype that can be build from scratch with simple tools and basic electronic elements.
- How does it work and what are its key features?
- Is it good enough to help you edit long text lines?
- Is it good enough to navigate on a virtual A4 text page??
- What about resolution? Let’s run a small icon guess game!
- Which tools and materials are required to reproduce it?
- Which license concept should be used to make it free-design?
- When to start a crowdfunded production of PCBs?
- ...
This is a protoype demonstration with talk and discussion, open for everyone and free of charge. A few photos of the event will be published on Zerocat’s website, later on, in case you indicate your consent.
Download Flyer-A4.pdf (german)
2024/11/08
“Chipflasher v2” goes GNU Boot: One device purchased by project maintainer...
November 2024: One cat goes GNU Boot
...in order to replace the CH341A flasher during development. Check GNU Boot Project for announcements.
2024/10/25
Zerocat Dev Kit: Display 10x64 Prototype, functionality approved
Testing the prototype in a camper
How to stay human in a world that is under digital control, even down to brain level?
The display has been created by hand, with proto boards of 100x500mm in dimension. LEDs are driven with 18mA at a refresh rate of only 12Hz due to simple and slow Spin code of the free-design controller – good enough for a first test.
Jump to project’s prototype description: Display 10x64
2024/09/02
Zerocat Dev Kit: Display 10x64 PCB, drafted layout available
Display 10x64 PCB, drafted layout
2024/08/27
Zerocat Dev Kit: Display 8x64 PCB, drafted layout available
Display 8x64 PCB, drafted layout
2024/08/18
Zerocat Dev Kit: Display 8x48 PCB, drafted layout available
Display 8x48 PCB, drafted layout
2024/07/12
Zerocat Camper: Living in a Nut Shell
New page available: Camper
In order to get productive, living and working in a camper must be amended by regular facilities like a flat, workshop or garage. I am reaching out for immediate help: Would you be able to provide a storage room, peaceful and dry? — Kai Mertens
2024/07/07
Zerocat Dev Kit: LED Matrix 8x36 PCB, drafted layout available
LED Matrix 8x36 PCB, drafted layout
2024/06/28
“Smart” phones and electric vehicles: Drastic impact on Democratic Republic of Congo
[...]
Cobalt, cuivre, coltan, lithium, la RDC possède dans son sous-sol les minerais indispensables au soutien du modèle économique dominant, fondé sur la croissance exponentielle du numérique et de la consommation électrique: elle abrite entre autres pas loin de 80% des réserves mondiales de coltan, un métal important pour l’industrie électronique, et l’une des plus grandes réserves de lithium au monde encore non exploitée, matériau indispensable à la fabrication des batteries de voitures électriques.
[...]
Du 22 juin au 16 juillet [2024], nous marcherons de Besançon au Parlement européen, à Strasbourg, pour porter la voix de la République démocratique du Congo (RDC) et dénoncer les conséquences de la surconsommation de métaux par les grandes puissances.
[...]
--- Génération Lumière (https://generationlumiere.fr/campagne-contre-lextractivisme/)
2024/06/27
FSiC2024¹: BMBF² courageously presenting good reasons to fund Open Source EDA³
Dr. Korbinian Schreiber, on behalf of the Federal Ministry of Education and Research, Germany
¹ FSiC2024 – Free Silicon Conference 2024, Paris, June 19-21
² BMBF – Bundesministerium für Bildung und Forschung (Deutschand)
³ EDA – Electronic Design Automation
- Intrinsically free and accessable
- Flexible, extensible, and interoperable through open standards, interfaces, and file formats
- Open source code provides transparency, trustworthiness, and security
- Shared development is less development for every company and individual
- Popular amoung young people
- Sustainably protected from acquisitions
- ...
2024/06/17
New project started to ease device development: Zerocat Dev Kit
This project is meant to ease device prototyping and development of the Zerocat Mini Machine, but it should support development of other device ideas as well. A first PCB has been designed to support a multiple PCB system, but do not use as is, please – it has not been tested yet: Zerocat Dev Kit
2024/06/09
Zerocat Mini Machine: Put the fun back into hardware development!
Presentation, held in English (except German is explicitly required by the audience):
When: 2024, June 12th, 7 p.m. Where: xHain Hack and Makespace, Grünberger Str. 16, 10243 Berlin, Germany Web: https://x-hain.de/en/
In respect to electronic hardware development, fun is gone as soon as the tools and the development process take your freedoms away, and bind you to proprietary concepts and business models. Zerocat Mini Machine will be different! While being an interesting hardware project by itself, targeting 100% integrity of text processing towards encrypted morse code, it offers a rock-solid free license concept right from the start.
All software tools of the development chain, e.g. 3D-CAD, Electronic Design Automation (EDA), PCB layout editing, and so on are fully qualified free software, provided in reproducible environments by means of the GNU Guix System.
2024/05/06
“Chipflasher v2” goes Libre Planet: Two devices will be sent to FSF
Zerocat is sponsoring FSF’s raffle during Libre Planet 2024 – two devices will be shipped with updated firmware version.
June 2024: Two cats go overseas
2024/03/31
Zerocat Maintenance: Website idle, Shop closed, Studio to be relocated
The Zerocat Website as well as Zerocat’s Online Shop go idle for a period of time, but will recover once maintenance tasks are accomplished, a new studio is set up, and an alternative shop portefolio is elaborated. For the time being, Zerocat is operated fromout an historic camper with gas and solar power, but no wifi.
2024/01/12
Happy New Year!
In 2024, I will focus on multi core, multi chip, P8X32A system development in all of its aspects, quietly, for a while. The goal is, to get in depth expertise and stable grounds for future, free-design device development, Zerocat Mini Machine included.
As a starting, Zerocat Project Template has been updated to v0.1.0! It ships a first template that can be set up per make file, easily: “Template 1, P8X32A Starter”. Give it a try, please! You will get your breadboards running in no time, using free software only ;-) — Kai Mertens