canable v2.0(slcan\u56fa\u4ef6<\/a>\uff0c\u652f\u6301canfd) Ubuntu24.04\uff08\u5728Ubuntu\u548cxubuntu\u4e0a\u90fd\u53ef\uff09 \u6302\u8f7d\u5185\u6838\u6a21\u5757\uff1a<\/p>\n\n\n\n \u5b89\u88c5can-utils<\/p>\n\n\n\n \uff08\u7384\u5b66\u4f46\u6709\u7528\uff0c\u4e0d\u8fdb\u884c\u4ee5\u4e0a\u64cd\u4f5c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6ca1\u6709\u6570\u636e\u8f93\u51fa\uff09<\/p>\n\n\n\n \u5b89\u88c5pip\u548cpython-venv<\/p>\n\n\n\n \u76f4\u63a5pip install \u5728python3.12\u4e2d\u4f1a\u62a5\u9519\uff1a<\/p>\n\n\n\n \u90a3\u5c31\u6574\u4e2avenv\u5e72\uff1a<\/p>\n\n\n\n \u8fd9\u6837python\u811a\u672c\u5c31\u597d\u8dd1\u4e86\u3002 \u786c\u4ef6: canable v2.0(slcan\u56fa\u4ef6\uff0c\u652f\u6301canfd)\u4e00\u4e2aj1900\u5c0f\u4e3b\u673a \u7cfb\u7edf\uff1a Ub […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-23","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/posts\/23","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/comments?post=23"}],"version-history":[{"count":1,"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/posts\/23\/revisions"}],"predecessor-version":[{"id":24,"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/posts\/23\/revisions\/24"}],"wp:attachment":[{"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/media?parent=23"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/categories?post=23"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bqmz001.top\/index.php\/wp-json\/wp\/v2\/tags?post=23"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u4e00\u4e2aj1900\u5c0f\u4e3b\u673a<\/p>\n\n\n\n<\/a><\/a>\u7cfb\u7edf\uff1a<\/h3>\n\n\n\n
python3.12<\/p>\n\n\n\n<\/a><\/a>\u7528\u5230\u7684Python\u5e93\uff1a<\/h3>\n\n\n\n
cantools==39.3.0\nmqtt==0.0.1\npaho-mqtt==1.6.1\npyserial==3.5\npython-can==4.2.0\n<\/code><\/pre>\n\n\n\n<\/a><\/a>\u98df\u7528\u65b9\u6cd5\uff1a<\/h3>\n\n\n\n
<\/a><\/a>1\u3001\u6302\u8f7d\u5185\u6838\u6a21\u5757\u548capt\u4e0b\u8f7d\u5305<\/h4>\n\n\n\n
sudo modprobe can\nsudo modprobe can_raw\nsudo modprobe slcan\n<\/code><\/pre>\n\n\n\nsudo apt install can-utils\n<\/code><\/pre>\n\n\n\nsudo apt install python3-pip\nsudo apt install python3-venv\n<\/code><\/pre>\n\n\n\n<\/a><\/a>2\u3001\u6fc0\u6d3b\u865a\u62df\u73af\u5883<\/h4>\n\n\n\n
error: externally-managed-environment\n \n\u00d7 This environment is externally managed\n\u2570\u2500> To install Python packages system-wide, try apt install\n python3-xyz, where xyz is the package you are trying to\n install.\n \n If you wish to install a non-Debian-packaged Python package,\n create a virtual environment using python3 -m venv path\/to\/venv.\n Then use path\/to\/venv\/bin\/python and path\/to\/venv\/bin\/pip. Make\n sure you have python3-full installed.\n \n If you wish to install a non-Debian packaged Python application,\n it may be easiest to use pipx install xyz, which will manage a\n virtual environment for you. Make sure you have pipx installed.\n \n See \/usr\/share\/doc\/python3.11\/README.venv for more information.\n \nnote: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.\nhint: See PEP 668 for the detailed specification.\n<\/code><\/pre>\n\n\n\nmkdir -p $HOME\/.env && python3 -m venv $HOME\/.env\/default #\u4ee5default\u4e3a\u4f8b\n$HOME\/.env\/default \/bin\/python -m pip install -r .\/requirements.txt\n$HOME\/.env\/default \/bin\/python .\/test.py\n<\/code><\/pre>\n\n\n\n
\u5728\u6b64\u4e4b\u524d\uff0c\u8bb0\u5f97\u7ed9\u4f60\u7528\u7684canable\u7ed9\u4e86777\uff1a<\/p>\n\n\n\nsudo chmod 777 \/dev\/ttyACM0\n<\/code><\/pre>\n\n\n\n<\/a><\/a>\u9644\uff1apython\u4ee3\u7801\uff1a<\/h4>\n\n\n\n
# This is a sample Python script.<\/em>\nimport asyncio\nimport time\nfrom typing import List\nimport can\nfrom can.notifier import MessageRecipient\nimport cantools\nimport serial.tools.list_ports\n\nimport paho.mqtt.client as mqtt\nimport json\n\nclient = mqtt.Client()\ndb = cantools.database.load_file('.\\test.dbc')\n\n\ndef on_connect(client, userdata, flags, rc):\n print(f\"Connected with result code {rc}\")\n\n\nasync def main() -> None:\n\n client.on_connect = on_connect\n client.username_pw_set(username=\"publisher\", password=\"123456\")\n client.connect(\"127.0.0.1\", 1883, 60)\n \"\"\"The main function that runs in the loop.\"\"\"\n \n with can.interface.Bus(bustype='slcan', channel='\/dev\/ttyACM0', bitrate=500000, ) as bus:\n reader = can.AsyncBufferedReader()\n listeners: List[MessageRecipient] = [\n reader,\n ]\n loop = asyncio.get_running_loop()\n notifier = can.Notifier(bus, listeners, loop=loop)\n while True:\n msg = await reader.get_message()\n try:\n print(msg)\n encodeMsg = db.decode_message(msg.arbitration_id, msg.data)\n print(encodeMsg)\n sendData={'id':msg.arbitration_id,'data':encodeMsg}\n client.publish(\"\/payload\",json.dump(encodeMsg))\n except Exception as ex:\n print(ex)\n pass\n pass\n\n\nif __name__ == \"__main__\":\n asyncio.run(main())\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"