{"id":21380055,"url":"https://github.com/mark-mdo47/esp32ws2812bclock","last_synced_at":"2026-05-17T21:09:29.352Z","repository":{"id":118042208,"uuid":"308744381","full_name":"Mark-MDO47/ESP32WS2812bClock","owner":"Mark-MDO47","description":"ESP32 WS2812b Clock with 241-LED disk","archived":false,"fork":false,"pushed_at":"2021-08-19T03:09:12.000Z","size":741,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-03-16T10:41:56.705Z","etag":null,"topics":["clock","esp32","esp32-arduino","esp32-wroom","ws2812b","ws2812b-led"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"unlicense","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Mark-MDO47.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":"2020-10-30T21:08:15.000Z","updated_at":"2020-11-26T16:01:15.000Z","dependencies_parsed_at":null,"dependency_job_id":"e1145e5f-0082-432c-8255-fd43a55452b4","html_url":"https://github.com/Mark-MDO47/ESP32WS2812bClock","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/Mark-MDO47/ESP32WS2812bClock","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Mark-MDO47%2FESP32WS2812bClock","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Mark-MDO47%2FESP32WS2812bClock/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Mark-MDO47%2FESP32WS2812bClock/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Mark-MDO47%2FESP32WS2812bClock/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Mark-MDO47","download_url":"https://codeload.github.com/Mark-MDO47/ESP32WS2812bClock/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Mark-MDO47%2FESP32WS2812bClock/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":33155542,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-17T09:28:26.183Z","status":"ssl_error","status_checked_at":"2026-05-17T09:27:52.702Z","response_time":107,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"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":["clock","esp32","esp32-arduino","esp32-wroom","ws2812b","ws2812b-led"],"created_at":"2024-11-22T10:35:18.841Z","updated_at":"2026-05-17T21:09:29.325Z","avatar_url":"https://github.com/Mark-MDO47.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# ESP32 WS2812b Clock\nExperimenting with this incredible low-priced WS2812b 241-LED disk.\n\nI found that feeding it enough power required some work. When the inner rings are starved for power they behave erratically. The wiring shipped with the 241-LED disk, connected daisy chain, doesn't work reliably with the breadboard power scheme I used in the past for the 93-LED disks. I soldered in the sort of bus bar connections I used in the graduation cap project and now all the LEDs behave reliably: https://github.com/Mark-MDO47/ESP32WS2812bClock/blob/main/images/LED_241_busPower.jpg\n\nDimensions of the disk are here: https://github.com/Mark-MDO47/ESP32WS2812bClock/blob/main/images/LED_241_Dimensions.jpg\n\nWith 241 LEDs, the RAM requirements exceed my old standby of Arduino Nano.  I chose the ESP32.\n\n\n# Parts List\nParts List so far\n\n| Num | CostEach | CostTotal | Description | Source |\n| --- | --- | --- | --- | --- |\n| 1 | $29.99 | $29.99 | 241 LEDs 9 Rings WS2812B 5050 RGB LED | https://smile.amazon.com/gp/product/B083VWVP3J/ |\n| 1 | $5.16 | $5.16 | ESP32 ESP-32S CP2102 NodeMCU-32S ESP-WROOM-32 WiFi Unassembled | https://smile.amazon.com/gp/product/B08DQQ8CBP/ |\n| 0 | $6.00 | $0.00 | ESP32 ESP-32S CP2102 NodeMCU-32S ESP-WROOM-32 WiFi | https://smile.amazon.com/DORHEA-Development-Microcontroller-NodeMCU-32S-ESP-WROOM-32/dp/B086MJGFVV/ |\n| 1 | $4.45 | $4.45 | UBEC 3Amp | https://smile.amazon.com/2-Pieces-Hobbywing-Switch-mode-UBEC-Helicopter-Quadcopter/dp/B01GHMW0C0 |\n| 1 | $0.40 | $0.40 | SN74HCT125N quadruple bus buffer and voltage translator | https://www.digikey.com/product-detail/en/texas-instruments/SN74HCT125N/296-8386-5-ND/376860 |\n| 1 | $0.10 | $0.10 | 10K Ohm resistor, 1/4 watt | https://www.digikey.com/en/products/detail/stackpole-electronics-inc/CF14JT10K0/1741265 |\n| 1 | $0.10 | $0.10 | 0.1 uF electrolytic capacitor | https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860010672001/5728608 |\n| 1 | $0.53 | $0.53 | 100 uF electrolytic capacitor | https://www.digikey.com/en/products/detail/panasonic-electronic-components/ECA-2AM101/245067 |\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmark-mdo47%2Fesp32ws2812bclock","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmark-mdo47%2Fesp32ws2812bclock","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmark-mdo47%2Fesp32ws2812bclock/lists"}