{"id":15487523,"url":"https://github.com/werediver/pico-badge-rs","last_synced_at":"2025-03-28T16:15:36.843Z","repository":{"id":69241605,"uuid":"562865450","full_name":"werediver/pico-badge-rs","owner":"werediver","description":"A quick weekend project of a simple electronic badge","archived":false,"fork":false,"pushed_at":"2022-11-07T19:55:34.000Z","size":13,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2024-10-19T07:53:18.417Z","etag":null,"topics":["hardware"],"latest_commit_sha":null,"homepage":"","language":"Rust","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/werediver.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","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":"2022-11-07T12:25:46.000Z","updated_at":"2024-04-27T13:26:10.000Z","dependencies_parsed_at":"2023-04-04T02:48:49.832Z","dependency_job_id":null,"html_url":"https://github.com/werediver/pico-badge-rs","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/werediver%2Fpico-badge-rs","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/werediver%2Fpico-badge-rs/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/werediver%2Fpico-badge-rs/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/werediver%2Fpico-badge-rs/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/werediver","download_url":"https://codeload.github.com/werediver/pico-badge-rs/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":246059336,"owners_count":20717085,"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","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":["hardware"],"created_at":"2024-10-02T06:40:43.540Z","updated_at":"2025-03-28T16:15:36.811Z","avatar_url":"https://github.com/werediver.png","language":"Rust","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Pico badge, made with 🦀 Rust\n\nA quick weekend project made for a Rust event. Here is a little [video demo](https://odysee.com/@werediver:d/Pico-badge-demo:8).\n\n## Power source\n\nThe badge is designed (mechanically, mostly) to be powered off a CR2032 battery. This is a poor choice, because CR2032 capacity heavily regrades under heavier loads (heavier than a fraction of a milliampere, see [High pulse drain impact on CR2032 coin cell battery capacity](https://www.dmcinfo.com/Portals/0/Blog%20Files/High%20pulse%20drain%20impact%20on%20CR2032%20coin%20cell%20battery%20capacity.pdf), Figure 3: CR2032 coin cell continuous discharge patterns).\n\nA better—yet still very limiting—choice would be the bigger CR2450.\n\nAfter all the optimizations, the badge draws around 13 mA from a 3.3 V source, which is way too stressful for these batteries. The badge operates for around 35 minutes on a single battery, than the MCU (RP2040) ceases it's activity, but the OLED continues to display tha last frame for at least another half an hour.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwerediver%2Fpico-badge-rs","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fwerediver%2Fpico-badge-rs","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwerediver%2Fpico-badge-rs/lists"}