{"id":15713582,"url":"https://github.com/dawsonjon/picorx","last_synced_at":"2025-04-12T22:28:14.219Z","repository":{"id":182109973,"uuid":"586529530","full_name":"dawsonjon/PicoRX","owner":"dawsonjon","description":"Build a SDR SW/MW/LW Receiver with a Raspberry Pi Pico","archived":false,"fork":false,"pushed_at":"2024-10-20T12:47:50.000Z","size":36588,"stargazers_count":233,"open_issues_count":23,"forks_count":30,"subscribers_count":16,"default_branch":"master","last_synced_at":"2024-10-25T01:22:09.393Z","etag":null,"topics":["crystal","ham","pi","pico","radio","raspberry","receiver","sdr","shortwave"],"latest_commit_sha":null,"homepage":"","language":"C","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/dawsonjon.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"COPYING.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}},"created_at":"2023-01-08T13:24:51.000Z","updated_at":"2024-10-23T13:41:41.000Z","dependencies_parsed_at":"2024-03-11T20:24:53.921Z","dependency_job_id":"e0445e2a-827d-468f-8f5a-ecc79050b6da","html_url":"https://github.com/dawsonjon/PicoRX","commit_stats":null,"previous_names":["dawsonjon/picorx"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dawsonjon%2FPicoRX","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dawsonjon%2FPicoRX/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dawsonjon%2FPicoRX/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dawsonjon%2FPicoRX/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/dawsonjon","download_url":"https://codeload.github.com/dawsonjon/PicoRX/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248639228,"owners_count":21137805,"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":["crystal","ham","pi","pico","radio","raspberry","receiver","sdr","shortwave"],"created_at":"2024-10-03T21:32:16.207Z","updated_at":"2025-04-12T22:28:14.199Z","avatar_url":"https://github.com/dawsonjon.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"Pi Pico Rx - A crystal radio for the digital age?\n=================================\n\n\nMy first step into the world of electronics was with a crystal radio, just like this one. \n\n![crystal radio](images/crystal_radio.jpg)\n\nBack then, I don't think it has ever occurred to me that I could make a radio myself, so I wasn't expecting it to work. But when I put the earphone in, I was amazed to hear very faint sounds coming through. I couldn't believe that building a radio could be so simple, and the best part was, it didn't need any batteries! That little experience sparked my interest in electronics.\n\nTimes have certainly changed since then, and today, we find ourselves in a golden age for electronics enthusiasts. Back in the ninteen eightees, I could have never imagined that my pocket money would one day buy a device with computing power that could have filled an entire room just a few decades ago.\n\nI often wonder how we can still capture that sense of awe and excitement from my first crystal radio experience. Is it still possible to create something simple yet captivating? \n\nThe Pi Pico Rx - may be the answer to that question. While it may not be quite as straightforward as the crystal radio, the Pi Pico Rx presents a remarkably simple solution. Armed with just a [Raspberry Pi Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/), an analogue switch, and an op-amp, we now have the power to construct a capable SDR receiver covering the LW, MW, and SW bands. With the ability to receive signals from halfway around the globe. I can't help but think that my younger self would have been truly impressed!\n\n![concept](images/concept.svg)\n\nFeatures\n--------\n\n+ 0 - 30MHz coverage\n+ 250kHz bandwidth SDR reciever\n+ CW/SSB/AM/FM reception\n+ OLED display\n+ simple spectrum scope\n+ Headphones/Speaker\n+ 500 general purpose memories\n+ runs on 3 AAA batteries\n+ less than 50mA current consumption\n\nDevelopment\n-----------\n\n![concept](images/top.svg)\n\nPi Pico Rx is currently at the experimental prototyping stage, but it does work. [Read the Docs](https://101-things.readthedocs.io/en/latest/radio_receiver.html) for more technical details!\n\nGetting the Code\n----------------\n\nYou can find a precompiled binary for PiPicoRx [here](https://github.com/dawsonjon/PicoRX/releases). If you want to build from the C++ source files, follow these instructions.\n\n```\n  sudo apt install git\n  git clone https://github.com/dawsonjon/PicoRX.git\n  cd PicoRX\n  git submodule init\n  git submodule update\n```\n\nUser Manual\n-----------\n\nYou can find the user manual for the PiPicoRx [here](https://github.com/dawsonjon/PicoRX/raw/master/user_manual/Pi%20Pico%20Rx%20User%20Manual.pdf).\n\n\nInstall Pi Pico SDK\n-------------------\n\nFollow the [Getting started with the Raspberry Pi Pico](https://datasheets.raspberrypi.com/pico/getting-started-with-pico.pdf) quick start guide to install the C/C++ SDK.\n\n```\n  sudo apt install wget #if wget not installed\n  wget https://raw.githubusercontent.com/raspberrypi/pico-setup/master/pico_setup.sh\n  chmod +x pico_setup.sh\n  ./pico_setup.sh\n```\n\nFor windows users, this page provides and [installer](https://www.raspberrypi.com/news/raspberry-pi-pico-windows-installer/) that makes the process much simpler.\n  \n\nBuild Projects\n--------------\n\n```\n  mkdir build\n  cd build\n  cmake -DPICO_BOARD=pico -DPICO_SDK_PATH=~/pico/pico-sdk ..\n  make\n```\n\n```\n  mkdir build\n  cd build\n  cmake -DPICO_SDK_PATH=~/pico/pico-sdk -DPICO_BOARD=pico2 -DPICO_PLATFORM=rp2350-arm-s ..\n  make\n```\n\n```\n  mkdir build\n  cd build\n  cmake -DPICO_SDK_PATH=~/pico/pico-sdk -DPICO_BOARD=pico2 -DPICO_PLATFORM=rp2350-riscv ..\n  make\n```\n\nCredits\n-------\n\nMassive thanks to everybody who has contributed and given feedback on this project. Thanks to\nall your efforts, we’re closer than ever to making radio more accessible,\ninnovative, and community-driven.\n\nThe project uses the Universal 8-bit Graphics Library (u8g2) library by\nolikraus@gmail.com, the pico_ssd1306 display library by David Schramm and the\nILI934X display driver by Darren Horrocks.\n\nSpecial Thanks to:\n\nMariusz Ryndzionek for contributing IQ Imbalance Correction, De-emphasis\nfilter, USB audio, U8G2 integration, Synronous AM Demodulation and many other\nenhancements.\n\nPenfold42 for Gain Calibration, Frequency Scanning, Spectrum Zoom, Multiple home screen\nviews, Animated Splash Screen, Support for multiple displays/configurations and\nmany other enhancements.\n\nRobert Nickels (W9RAN) and Jim Reagan (W0CHL) for their support and\nencouragements and for the enormous effort they have both put in testing,\ndebugging, feedback and suggestions.\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdawsonjon%2Fpicorx","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdawsonjon%2Fpicorx","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdawsonjon%2Fpicorx/lists"}