{"id":23217745,"url":"https://github.com/chohner/raspiwdf","last_synced_at":"2026-05-17T06:37:51.140Z","repository":{"id":82549349,"uuid":"72659284","full_name":"chohner/RasPiWDF","owner":"chohner","description":"Running a Wave Digital Filter (WDF) tonestack model on a Rasberry Pi 3, controlled by analog potentiometers","archived":false,"fork":false,"pushed_at":"2017-05-12T16:03:15.000Z","size":3954,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-04-05T14:27:09.411Z","etag":null,"topics":["ads1115","raspberry-pi","rpi","wavedigitalfilter","wdf"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/chohner.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2016-11-02T16:28:27.000Z","updated_at":"2024-07-23T21:21:07.000Z","dependencies_parsed_at":null,"dependency_job_id":"06f81ea8-1903-4859-a3f4-e80e7c4a03c1","html_url":"https://github.com/chohner/RasPiWDF","commit_stats":null,"previous_names":[],"tags_count":2,"template":false,"template_full_name":null,"purl":"pkg:github/chohner/RasPiWDF","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2FRasPiWDF","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2FRasPiWDF/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2FRasPiWDF/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2FRasPiWDF/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/chohner","download_url":"https://codeload.github.com/chohner/RasPiWDF/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2FRasPiWDF/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":279081336,"owners_count":26099192,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-15T02:00:07.814Z","response_time":56,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["ads1115","raspberry-pi","rpi","wavedigitalfilter","wdf"],"created_at":"2024-12-18T20:49:19.000Z","updated_at":"2025-10-15T13:10:50.799Z","avatar_url":"https://github.com/chohner.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"This repository is an example of how to implement a Wave Digital Filter (WDF) Tonestack on a Rasberry Pi 3, controlled by analog potentiometers.\n\n# Packages\nMake sure to fulfill all requirements of the WDF library first. This includes e.g. armadillo (and its dependencies) and superLU. Note that there are some multi-threaded drop-in replacements for the BLAS/LAPACK dependency available, e.g. OpenBLAS.\n\n# A/D- Converter\nAn ADS1115 A/D-Converter provides 4 channels with 16 bit resolution and is connected to the PI via I2C.\nYou have to enable the PI's I2C port first.\n\nAnalog potentiometers can then modify the filter in real-time.\n\n# Some Details\n## Threads\n\n![png](docu/drawingWDF.png)\n\nEach rectangle symbolizes a basic thread. They can run joined, e.g. the Jack Audio Callback (Main) and the WDF filtering thread -- or completely independently (detached).\n\n## Poti Class\nSince detached threads are not synchronized, a Poti Class stores the current Poti value and provides getters and setters for each Poti.\n\nThe Poti class is therefore only declared once. All other appearances use `extern`, so the linker uses the exact same instance all over.","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchohner%2Fraspiwdf","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fchohner%2Fraspiwdf","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchohner%2Fraspiwdf/lists"}