Description
The Stahl USB dongle provides long-term storage for about 2000 characters of text. Simply plug the device into your computer and open any serial communications program that supports VT100 emulation (PuTTY, Tera Term, Minicom, screen, etc.) in order to access the built-in text editor.
Also see Blaustahl. Stahl is more compact but has less memory and a less powerful MCU.
Features
- USB-CDC interface requires no additional drivers on most OSes
- Built-in text editor
- ATmega32U2 8-bit MCU (32KB flash, 1024B SRAM)
- 2KB Ferroelectric RAM
- Lifespan: 95 years @ +55C, over 200 years @ +35C
- Endurance: 10^12 read/write cycles @ +85C
- White LED
- Includes 3D-printed PLA case (color/appearance may differ from photo)
- Board dimensions: 24mm x 16mm
Use Cases
- Password storage
- Cryptocurrency private key storage
- Note/list storage
- Geocaching
- Time capsules
Usage (Linux)
$ screen /dev/ttyACM0
Editor Commands
CTRL-G Help CTRL-L Refresh screen CTRL-W Toggle write mode
Resources
- Schematics, firmware and 3D-printable case are available on GitHub
