{"id":25286598,"url":"https://github.com/bustardcelly/bike-speedometer","last_synced_at":"2025-04-06T16:16:40.997Z","repository":{"id":137060924,"uuid":"90353351","full_name":"bustardcelly/bike-speedometer","owner":"bustardcelly","description":"Arduino-based simple bike speedometer","archived":false,"fork":false,"pushed_at":"2017-06-07T20:35:56.000Z","size":5,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-02-12T21:51:24.129Z","etag":null,"topics":["arduino","bike","speedometer"],"latest_commit_sha":null,"homepage":null,"language":"Arduino","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/bustardcelly.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE-MIT","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":"2017-05-05T08:15:12.000Z","updated_at":"2021-05-10T09:56:09.000Z","dependencies_parsed_at":"2023-03-21T11:03:24.772Z","dependency_job_id":null,"html_url":"https://github.com/bustardcelly/bike-speedometer","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/bustardcelly%2Fbike-speedometer","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/bustardcelly%2Fbike-speedometer/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/bustardcelly%2Fbike-speedometer/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/bustardcelly%2Fbike-speedometer/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/bustardcelly","download_url":"https://codeload.github.com/bustardcelly/bike-speedometer/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":247509239,"owners_count":20950232,"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":["arduino","bike","speedometer"],"created_at":"2025-02-12T21:50:44.765Z","updated_at":"2025-04-06T16:16:40.991Z","avatar_url":"https://github.com/bustardcelly.png","language":"Arduino","funding_links":[],"categories":[],"sub_categories":[],"readme":"# bike-speedometer\nArduino-based simple bike speedometer\n\n# specs\n\n## hardware\n\n* Trinket 5v [purchase](https://www.adafruit.com/product/1501)\n* Hall Sensor [purchase](https://www.amazon.com/New-Hall-Sensor-Module-Arduino/dp/B009M86TFG/ref=sr_1_2?ie=UTF8\u0026qid=1493972745\u0026sr=8-2\u0026keywords=arduino+hall+sensor)\n* 4x7 LED Segment display [purchase](https://www.sparkfun.com/products/9481)\n* 74HC595 shift register (2x) [purchase](https://www.adafruit.com/product/450)\n\n## multiplexed 4x7\n\nMapped pin-out.\n```sh\n  Type      Seg Pin   Reg Pin\n  ----      -------   -------\n  Digit 1   1 pin     9 pin\n  Digit 2   2 pin     10 pin\n  Digit 3   6 pin     11 pin\n  Digit 4   8 pin     12 pin\n  Seg A     14 pin    1 pin\n  Seg B     16 pin    2 pin\n  Seg C     13 pin    3 pin\n  Seg D     3 pin     4 pin\n  Seg E     5 pin     5 pin\n  Seg F     11 pin    6 pin\n  Seg G     15 pin    7 pin\n  DP        7 pin     -\n```\n\n# install using adruino IDE\n1. Launch Arduino IDE.\n2. Load the sketch.\n3. Select `Tools \u003e Board \u003e Adafruit Trinket 8MHz`.\n4. Select `Tools \u003e Programmer \u003e USBtinyISP`.\n5. Start the bootloader [info](https://learn.adafruit.com/introducing-trinket/introduction?embeds=allow\u0026view=all#starting-the-bootloader).\n6. Click `Upload` (arrow button).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fbustardcelly%2Fbike-speedometer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fbustardcelly%2Fbike-speedometer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fbustardcelly%2Fbike-speedometer/lists"}