Project Patchouli: Open-source electromagnetic drawing tablet hardware
»Home Edit on GitLab Project Patchouli Open-Source EMR Pen Tablet Hardware Implementation and Documentation Patchouli is an open-source electro-magnetic drawing tablet hardware implementation, including a coil array, an RF front end built using commercially available parts, and digital signal processing algorithms. The design is compatible with most commercial pens from different vendors, offering an ultra-low-latency pen input experience for your customized hardware projects. In addition, this project aims to provide a comprehensive documentation of the EMR technology, including the mechanism, circuit implementation, signal processing algorithms, and the pen protocol of different product lines from different vendors. Project Code / Hardware Repository: GitLab Updates …