Oskar Zither
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Oskar Zither Basic Data Category: Arduino URL (first publication): https://gitlab.com/teamoskar/oskar_zither Keywords: mobile braille keyboard smartphone blind License: CERN Open Hardware License Project status: Active
Technical documentation Maturity of the project: production / DIY Certification Status: Contains PDF-drawings: Yes CAD files are editable: Yes Assembly instructions are published: Yes Bill of materials is published: Yes
yes yes
Project management Issue Management System: https://gitlab.com/teamoskar/oskar_zither/-/issues Versioning System:https://gitlab.com/teamoskar/oskar_zither
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Description
Oskar Zither is a mobile braille-keyboard.
The arrangement of 8 keys in a braille cell block and two additional keys allows Oskar Zither to be controlled without a supporting surface.
Used license for Hardware documentation CERN-OHL-S v2 or later versions.
Used license for Firmware GPL-3.0 or later versions.
Technical documentation
Oskar Zither PCB Back PDF | |
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Oskar Zither PCB Back as PDF |
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Oskar Zither PCB Front PDF | |
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Oskar Zither PCB Front as PDF |
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Oskar Zither PCB Edge Cuts PDF | |
| Oskar Zither PCB Edge Cuts as PDF | |
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Oskar Zither PCB Schematic | |
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Case | |
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Oskar Zither case parts front, back and thumb plates in STL file format |
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+ General Reviews 
Parts list
| Pos. | Pos. old | Qty. | Part Name | Part code | Part Type | Specifications | Review Status | Show All Comments | |
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| 0 | Oskar Zither entire Project | |
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| 1 | 1 | Case | Production | |
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| 1.1 | 60 g | PLA | Buy | https://www.adafruit.com/product/2080 | |
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| 1.2 | 4 | Screws | Buy | Clipboard Screws, 3 x 16 mm, DIN 7505-A https://www.conrad.at/de/p/swg-spanplattenschrauben-3-mm-16-mm-kreuzschlitz-pozidriv-stahl-verzinkt-200-st-1203500.html | |
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| 2 | 1 | PCB Complete System | Production | |
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| 2.1 | 1 | PCB | Buy | Dimension: 67.4mm x 70.5mm Layer count: 2 Base material: FR4 TG 140° Nominal Thickness include Copper Cladding: 1.6 mm https://aisler.net/p/OPSGPOBN | |
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| 2.2 | 10 | Switches | Buy | Kailh Choc low profile Switch tactile, brown CPG135001D02 https://www.aliexpress.com/item/32838369089.html | |
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| 2.3 | 10 | Keycaps | Buy | Kailh Choc low profile Keycaps https://www.aliexpress.com/item/32949747794.html | |
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| 2.4 | 1 | Arduino Micro | Buy | https://store.arduino.cc/arduino-micro | |
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| 2.5 | 1 | Resistor | Buy | Axial, through-hole Resistor 1 kOhm, 1/4 Watt https://www.adafruit.com/product/4294 | |
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| 2.6 | 1 | USB-OTG Cable USB-Micro-B-Connector | Buy | for USB-Micro-B-Connector: https://www.adafruit.com/product/3610 for iPhone: "Apple Camera Adapter Lightning to USB 3" https://smile.amazon.de/Lightning-to-USB3-Camera-Adapter/dp/B01DGDNL2G/ | |
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