{"id":24974860,"url":"https://github.com/atoomnetmarc/solenoid-pulser","last_synced_at":"2026-01-08T02:05:20.717Z","repository":{"id":111232586,"uuid":"393407697","full_name":"atoomnetmarc/Solenoid-pulser","owner":"atoomnetmarc","description":"Solenoid pulser for 12V JF-0530B","archived":false,"fork":false,"pushed_at":"2021-10-03T08:46:15.000Z","size":4046,"stargazers_count":1,"open_issues_count":0,"forks_count":1,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-02-03T20:49:58.136Z","etag":null,"topics":["bell","ne555","solenoid"],"latest_commit_sha":null,"homepage":"","language":"HTML","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/atoomnetmarc.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":"2021-08-06T14:49:14.000Z","updated_at":"2024-08-23T03:47:01.000Z","dependencies_parsed_at":null,"dependency_job_id":"857e62a1-9cfc-4c5f-ba1f-7e9611fb0616","html_url":"https://github.com/atoomnetmarc/Solenoid-pulser","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/atoomnetmarc%2FSolenoid-pulser","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/atoomnetmarc%2FSolenoid-pulser/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/atoomnetmarc%2FSolenoid-pulser/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/atoomnetmarc%2FSolenoid-pulser/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/atoomnetmarc","download_url":"https://codeload.github.com/atoomnetmarc/Solenoid-pulser/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":246150458,"owners_count":20731419,"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":["bell","ne555","solenoid"],"created_at":"2025-02-03T20:43:00.917Z","updated_at":"2026-01-08T02:05:20.691Z","avatar_url":"https://github.com/atoomnetmarc.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Status\r\n\r\nPrototype. Circuit has been validated and know to work on a breadboard, but have not been made into a pcb yet.\r\n\r\n# Ding!?\r\n\r\nThis circuit charges a 2200uF capacitor with a 100 ohm resistor and pulses a 12V JF-0530B solenoid for about 15ms with a NE555 timer chip. The NE555 is configured as a non-retriggerable one-shot timer where the length of the trigger pulse does not matter. The solenoid will strike a reception desk bell to produce a ding sound. The 100 ohm resistor limits triggering to a maximum of once per second. Add a 6mm bushing to the solenoid axle to shorten its throw.\r\n\r\n![](Kicad/Solenoid%20pulser-render.jpg)\r\n![](3d/Bell%20holder.png)\r\n\r\n[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fatoomnetmarc%2Fsolenoid-pulser","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fatoomnetmarc%2Fsolenoid-pulser","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fatoomnetmarc%2Fsolenoid-pulser/lists"}