{"id":31532286,"url":"https://github.com/M17-Project/LinHT-hw","last_synced_at":"2025-10-04T03:02:05.129Z","repository":{"id":297923868,"uuid":"996960996","full_name":"M17-Project/LinHT-hw","owner":"M17-Project","description":"LinHT - Linux-based, SDR handheld transceiver.","archived":false,"fork":false,"pushed_at":"2025-09-23T18:00:01.000Z","size":64359,"stargazers_count":131,"open_issues_count":9,"forks_count":9,"subscribers_count":12,"default_branch":"main","last_synced_at":"2025-09-23T19:29:11.435Z","etag":null,"topics":["ham-radio","rf"],"latest_commit_sha":null,"homepage":"https://m17foundation.org","language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/M17-Project.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.txt","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,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-06-05T18:20:54.000Z","updated_at":"2025-09-22T05:41:32.000Z","dependencies_parsed_at":"2025-09-23T19:25:33.726Z","dependency_job_id":null,"html_url":"https://github.com/M17-Project/LinHT-hw","commit_stats":null,"previous_names":["m17-project/linht-hw"],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/M17-Project/LinHT-hw","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/M17-Project%2FLinHT-hw","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/M17-Project%2FLinHT-hw/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/M17-Project%2FLinHT-hw/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/M17-Project%2FLinHT-hw/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/M17-Project","download_url":"https://codeload.github.com/M17-Project/LinHT-hw/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/M17-Project%2FLinHT-hw/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":277367293,"owners_count":25806260,"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":"2025-09-28T02:00:08.834Z","response_time":79,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","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":["ham-radio","rf"],"created_at":"2025-10-04T03:02:02.003Z","updated_at":"2025-10-04T03:02:05.123Z","avatar_url":"https://github.com/M17-Project.png","language":"JavaScript","funding_links":[],"categories":["JavaScript","Hardware"],"sub_categories":["Simulation"],"readme":"[![CC BY-NC-SA 4.0][cc-by-nc-sa-shield]][cc-by-nc-sa]\n\n# LinHT-hw\nOpen-source hardware, Linux-based, SDR handheld transceiver. [OpenHT](https://github.com/M17-Project/OpenHT-hw) successor with greatly simplified hardware - no FPGAs involved.\nThis project offers a replacement board for the Retevis C62 radio, greatly expanding its capabilities.\n\n## Hardware\nThe device uses an [MCM-iMX93](https://www.compulab.com/products/computer-on-modules/mcm-imx93-nxp-i-mx-93-som-smd-system-on-module) System on Module (SoM) running Linux. The RF front-end is based on the [Semtech SX1255](https://www.semtech.com/products/wireless-rf/lora-core/sx1255). The chip is used as a complete IQ modulator/demodulator, allowing for true all-mode support.\n\n### Resources\n**CPU:**\n\n* Dual-core ARM Cortex-A55 @ 1.7GHz\n* ARM Cortex-M33 coprocessor @ 250MHz\n* Floating Point Unit\n* ARM Ethos U-65 microNPU (Neural Processing Unit with TensorFlow Lite support)\n\n**Memory:**\n\n* 2GB LPDDR4\n* 32GB eMMC\n\n**RF:**\n\n* 500kHz bandwidth complete IQ transceiver\n\n## Software\nDevelopers can use C/C++/Python as well as (or in conjunction with) GNU Radio flowgraphs. Tools such as gcc are built-in.\n\n### Supported modes (so far):\n\n* FM transmission and reception with pre-/de-emphasis and CTCSS,\n* SSB transmission and reception,\n* M17 - transmission and reception,\n* TETRA - reception only,\n* Demo 64QAM transmission at 2Mbps\n\nOther modes can be added later (FreeDV, APRS, etc.).\n\n## Images\n\n### Download images\n\nPrebuilt images for LinHT can be downloaded [here](https://m17project.org/linht/).\n\n### Building images\n\nInstructions for setting up the Yocto build environment can be found in the [M17 Wiki](https://wiki.m17foundation.org/index.php?title=LinHT_Image_Build).\nAll layers required to build the image are located in the M17 Project GitHub:\n\n- [meta-linht-hardware](https://github.com/M17-Project/meta-linht-hardware): Provides machine configuration and hardware support for the LinHT hardware.\n- [meta-linht-software](https://github.com/M17-Project/meta-linht-software): Provides application software, libraries, and system configuration.\n- [meta-linht-sdr](https://github.com/M17-Project/meta-linht-sdr): A modified version of [meta-sdr](https://github.com/balister/meta-sdr), providing the GNU Radio package.\n\n### Flashing\n\nTo flash the images to LinHT the [Universal Update Utility](https://github.com/nxp-imx/mfgtools/releases) is needed.\nLinHT needs to be booted into flash mode (holding the secondary side button while booting).\nOnce in flash mode, the image can be written with uuu:\n```bash\nuuu -v -b emmc_all imx-boot-mcm-imx93-sd.bin-flash_singleboot linht-image-mcm-imx93.rootfs.wic.zst\n```\n\n## Driver\n\nTo access LinHTs network device under windows, [RNDIS driver](https://www.catalog.update.microsoft.com/Search.aspx?q=USB%20RNDIS%20Gadget) need to be installed.\n\n## License\nThis work is licensed under a\n[Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License][cc-by-nc-sa].\n\n[![CC BY-NC-SA 4.0][cc-by-nc-sa-image]][cc-by-nc-sa]\n\n[cc-by-nc-sa]: http://creativecommons.org/licenses/by-nc-sa/4.0/\n[cc-by-nc-sa-image]: https://licensebuttons.net/l/by-nc-sa/4.0/88x31.png\n[cc-by-nc-sa-shield]: https://img.shields.io/badge/License-CC%20BY--NC--SA%204.0-lightgrey.svg\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FM17-Project%2FLinHT-hw","html_url":"https://awesome.ecosyste.ms/projects/github.com%2FM17-Project%2FLinHT-hw","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FM17-Project%2FLinHT-hw/lists"}