Open-source EMR pen tablet hardware implementation and documentation
Patchouli is an open-source electro-magnetic drawing tablet hardware implementation, consisting of a coil array, commercially available parts, and an RF front end built using digital signal processing algorithms. The design is compatible with most commercial pens from various vendors, providing an ultra-low-latency pen input experience for your customized hardware projects.
In addition, the goal of this project is to provide comprehensive documentation of EMR technology, including mechanisms, circuit implementations, signal processing algorithms, and pen protocols of various product lines from different vendors.
Project code/hardware repository: GitLab
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This project is sponsored by the NLNET Foundation NGI Zero Core Fund. Learn more about it here: Project Patchouli
license
Project Patchouli Documentation By Yukidama and other project members Licensed under Creative Commons Attribution 4.0 International
All images and other resource files in this project, unless otherwise specified, are created by the project team and licensed under the same CC BY 4.0 license.
The hardware design is released under the CERN Open Source Hardware License Strongly Reciprocating Version, CERN-OHL-S. A copy of the license is provided in the source repository. Additionally, a user guide to the license is made available on ohwr.org.
All program code, unless otherwise specified, is licensed under the GPLv3 license.
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This project is under active development.
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