{"id":13826763,"url":"https://github.com/roboremo/nrf24-demodulator","last_synced_at":"2025-07-09T01:31:18.056Z","repository":{"id":173804388,"uuid":"81427379","full_name":"roboremo/NRF24-demodulator","owner":"roboremo","description":"Sniff NRF24L01 (and clones) packets and veiw bit-level structure using GNU Radio","archived":false,"fork":false,"pushed_at":"2017-05-06T10:28:05.000Z","size":423,"stargazers_count":21,"open_issues_count":1,"forks_count":9,"subscribers_count":4,"default_branch":"master","last_synced_at":"2024-08-04T09:05:48.173Z","etag":null,"topics":["gfsk","gnu-radio","mmds","nrf24l01","packet-capture","sdr","sniffer"],"latest_commit_sha":null,"homepage":null,"language":null,"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/roboremo.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}},"created_at":"2017-02-09T08:28:41.000Z","updated_at":"2024-07-03T17:10:32.000Z","dependencies_parsed_at":"2024-01-07T22:49:54.604Z","dependency_job_id":"9f11c4d9-ea27-44f3-80c1-2b1bf35e7c3f","html_url":"https://github.com/roboremo/NRF24-demodulator","commit_stats":null,"previous_names":["roboremo/nrf24-demodulator"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/roboremo%2FNRF24-demodulator","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/roboremo%2FNRF24-demodulator/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/roboremo%2FNRF24-demodulator/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/roboremo%2FNRF24-demodulator/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/roboremo","download_url":"https://codeload.github.com/roboremo/NRF24-demodulator/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":225476383,"owners_count":17480215,"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":["gfsk","gnu-radio","mmds","nrf24l01","packet-capture","sdr","sniffer"],"created_at":"2024-08-04T09:01:43.759Z","updated_at":"2024-11-20T05:31:04.937Z","avatar_url":"https://github.com/roboremo.png","language":null,"funding_links":[],"categories":["\u003ca id=\"7bf0f5839fb2827fdc1b93ae6ac7f53d\"\u003e\u003c/a\u003e工具"],"sub_categories":["\u003ca id=\"32739127f0c38d61b14448c66a797098\"\u003e\u003c/a\u003e嗅探\u0026\u0026Sniff"],"readme":"# NRF24-demodulator\nSniff NRF24L01 (and clones) packets and view bit-level structure using GNU Radio.  \nGRC flow inspired from here: https://wiki.bitcraze.io/misc:hacks:hackrf  \n  \n## Hardware setup  \nInspired from http://blog.cyberexplorer.me/2014/01/sniffing-and-decoding-nrf24l01-and.html  \nHave a NRF24L01+ sending something on channel 80 (2480MHz), at 1Mbps  \nThe RF signal is picked-up using a MMDS down converter  \n(I use one with LO = 1838MHz and input frequency 2500 to 2700MHz)  \nThe resulting frequency is 642MHz  \nThe 642MHz signal goes to a SDR dongle (820T2), and the GRC reads it.  \nThe MMDS down converter is powered using 12V DC  \n![MMDS powering diagram](https://raw.githubusercontent.com/roboremo/NRF24-demodulator/master/powering-MMDS-down-converter.JPG \"MMDS powering diagram\")\n  \n## Software setup\nAfter the hardware is ready, open the GRC file  \nChange the downconverter_lo and nrf_channel if needed  \nClick execute  \nThe scope should appear on screen.  \nGo to Channel Options -\u003e Trig and increase the trigger level by clicking on +  \nThen move T Offset to the right  \nNow you should see something like this:  \n![NRF24L01 packet waveform](https://raw.githubusercontent.com/roboremo/NRF24-demodulator/master/NRF24L01p-1Mbps-addr-0x0000000000-payload-0x414243-DPL-noCRC.JPG \"NRF24L01 packet waveform\")  \n  \nRelated project:  \nhttps://github.com/roboremo/NRF24-total-control\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Froboremo%2Fnrf24-demodulator","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Froboremo%2Fnrf24-demodulator","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Froboremo%2Fnrf24-demodulator/lists"}