{"id":24701623,"url":"https://github.com/jujax/m5coreink-lightmeter","last_synced_at":"2025-10-13T23:40:21.914Z","repository":{"id":271546185,"uuid":"913802356","full_name":"jujax/m5coreink-lightmeter","owner":"jujax","description":"Light meter with  m5coreink and Dlight HAT (BH1750)","archived":false,"fork":false,"pushed_at":"2025-02-16T16:04:29.000Z","size":405,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-03-22T04:12:48.212Z","etag":null,"topics":["aperture","arduino","bh1750","cpp","e-ink","esp32","iso","light-meter","m5coreink","photography","photometry","shutter"],"latest_commit_sha":null,"homepage":"","language":"C++","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/jujax.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":"2025-01-08T11:33:35.000Z","updated_at":"2025-02-16T16:04:32.000Z","dependencies_parsed_at":null,"dependency_job_id":"cbc84f7e-7b5f-42b7-9ec1-c36c1ddd3868","html_url":"https://github.com/jujax/m5coreink-lightmeter","commit_stats":null,"previous_names":["jujax/m5coreink-lightmeter"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/jujax/m5coreink-lightmeter","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jujax%2Fm5coreink-lightmeter","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jujax%2Fm5coreink-lightmeter/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jujax%2Fm5coreink-lightmeter/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jujax%2Fm5coreink-lightmeter/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jujax","download_url":"https://codeload.github.com/jujax/m5coreink-lightmeter/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jujax%2Fm5coreink-lightmeter/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":266296808,"owners_count":23907013,"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":"2025-07-21T11:47:31.412Z","response_time":64,"last_error":null,"robots_txt_status":null,"robots_txt_updated_at":null,"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":["aperture","arduino","bh1750","cpp","e-ink","esp32","iso","light-meter","m5coreink","photography","photometry","shutter"],"created_at":"2025-01-27T05:24:58.202Z","updated_at":"2025-10-13T23:40:16.893Z","avatar_url":"https://github.com/jujax.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# M5CoreInk Light Meter\n\n![M5coreink with BH1750](assets/1.jpeg)\n\nThis project is a light meter application for the M5Stack CoreInk device. It measures the light intensity using a BH1750 sensor and calculates the exposure value (EV) for photography. The application allows users to select different modes, ISO values, shutter speeds, and apertures.\n\n## Features\n\n* Measure light intensity using the BH1750 sensor\n* Calculate exposure value (EV)\n* Aperture priority and shutter priority modes\n* Selectable ISO values, shutter speeds, and apertures\n* Save and load settings to/from EEPROM\n* Display information on the M5Stack CoreInk e-ink display\n* Battery voltage monitoring\n* Enter sleep mode after inactivity\n\n## Hardware Requirements\n\n* M5Stack CoreInk\n* BH1750 light sensor\n\n## Software Requirements\n\n* PlatformIO\n* Arduino framework\n* Adafruit GFX Library\n* Adafruit BusIO\n* GxEPD2 Library\n\n## Installation\n\n1. Clone the repository:\n   ```sh\n   git clone https://github.com/jujax/m5coreink-lightmeter.git\n   ```\n2. Open the project in PlatformIO.\n3. Connect the M5Stack CoreInk device to your computer.\n4. Upload the code to the device.\n\n## Usage\n\n1. Power on the M5Stack CoreInk device.\n2. The light meter will initialize and display the current settings.\n3. Use the buttons to navigate the menu and adjust the settings:\n   - `BTN_UP`: Move up in the menu or increase the selected value.\n   - `BTN_DOWN`: Move down in the menu or decrease the selected value.\n   - `BTN_OK`: Select the current menu item or toggle edit mode.\n   - `BTN_POWER`: Measure the ambient light and update the exposure value (EV).\n4. The device will enter sleep mode after 60 seconds of inactivity.\n\n## Contributing\n\nContributions are welcome! Please follow these steps to contribute:\n\n1. Fork the repository.\n2. Create a new branch for your feature or bugfix.\n3. Commit your changes and push the branch to your fork.\n4. Create a pull request with a description of your changes.\n\n## License\n\nThis project is licensed under the MIT License. See the LICENSE file for details.\n\n## Acknowledgements\n\n* Adafruit GFX Library\n* Adafruit BusIO\n* GxEPD2 Library\n* BH1750 Library","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjujax%2Fm5coreink-lightmeter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjujax%2Fm5coreink-lightmeter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjujax%2Fm5coreink-lightmeter/lists"}