{"id":13802553,"url":"https://github.com/Josep/micropython-geiger","last_synced_at":"2025-05-13T13:31:48.106Z","repository":{"id":23203224,"uuid":"26559950","full_name":"Josep/micropython-geiger","owner":"Josep","description":"Geiger counter with micropython card","archived":false,"fork":false,"pushed_at":"2014-11-19T16:49:28.000Z","size":1080,"stargazers_count":5,"open_issues_count":0,"forks_count":1,"subscribers_count":1,"default_branch":"master","last_synced_at":"2024-11-18T17:51:39.672Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Josep.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2014-11-12T22:47:52.000Z","updated_at":"2023-12-02T12:40:38.000Z","dependencies_parsed_at":"2022-08-05T21:00:30.936Z","dependency_job_id":null,"html_url":"https://github.com/Josep/micropython-geiger","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/Josep%2Fmicropython-geiger","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Josep%2Fmicropython-geiger/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Josep%2Fmicropython-geiger/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Josep%2Fmicropython-geiger/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Josep","download_url":"https://codeload.github.com/Josep/micropython-geiger/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":253950132,"owners_count":21989310,"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":[],"created_at":"2024-08-04T00:01:46.984Z","updated_at":"2025-05-13T13:31:47.829Z","avatar_url":"https://github.com/Josep.png","language":"Python","readme":"Geiger counter with micropython card\n====================================\n\nHardware Design\n---------------\n\nGeiger tube SBM-20:\n[http://www.gstube.com/data/2398](http://www.gstube.com/data/2398)/\n\nPyboard: [http://micropython.org](http://micropython.org)\n\nHigh voltage generator from\n[http://www.mare.ee/indrek/geiger](http://www.mare.ee/indrek/geiger)/\n\nDigitization of tube discharges from\n[http://www.techlib.com/science/geiger.html](http://www.techlib.com/science/geiger.html)\n(with one gate of 4093 and 3.3V supply)\n\nPower supply from\n[http://1wt.eu/articles/alix-ups](http://1wt.eu/articles/alix-ups) and\n[http://www.mouser.com/ds/2/268/22008a-53656.pdf](http://www.mouser.com/ds/2/268/22008a-53656.pdf)\n\nWireless serial port with wixel:\n[http://www.pololu.com/docs/0J46/all](http://www.pololu.com/docs/0J46/all)\n\nLog device: fram\n[http://www.cypress.com/?docID=50514](http://www.cypress.com/?docID=50514)\n\nTemp \u0026 humidity sensor am2302:\n[https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf](https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf)\n\nBuzzer: ZX-27T6A1 at [http://dx.com](http://dx.com)\n\nMicropython card pins used:\n\n    Y12    IN/OUT AM2302\n    Y10    IN     TIM2_CH4  GEIGER\n    Y2     IN Rx    POLOLOU\n    Y11    OUT    Power POLOLOU\n    GND    GND\n    VDD    VDD    3.3V\n    Y3     OUT    SCK FRAM\n    Y4     OUT    CS  FRAM\n    Y5     OUT    SI  FRAM\n    Y6     IN     SO  FRAM\n    Y8     OUT    BUZZER\n    Y9     OUT    RELAY\n    Y1     OUT Tx POLOLOU\n    X3     FREE   For testing\n    X4     FREE   For testing\n    X5     FREE   For testing\n\n![photo of mounted proto board here](DAN_6872.png)\nSoftware Design\n---------------\n\nBuzzer is activated with programming PWM signal at 3.5Khz. \n\nAM2302 is one wire, Pin has to be changed from output to input. \n\nfram has an SPI interface. It is harcoded in python as individual pins. \n\nThe core is the interrupt handler awaken by the discharges of the tube.\n","funding_links":[],"categories":["Libraries"],"sub_categories":["Sensors"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FJosep%2Fmicropython-geiger","html_url":"https://awesome.ecosyste.ms/projects/github.com%2FJosep%2Fmicropython-geiger","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FJosep%2Fmicropython-geiger/lists"}