{"id":1075228,"date":"2025-01-08T11:42:06","date_gmt":"2025-01-08T03:42:06","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1075228.html"},"modified":"2025-01-08T11:42:08","modified_gmt":"2025-01-08T03:42:08","slug":"%e5%a6%82%e4%bd%95%e5%b0%86python%e8%be%93%e5%87%ba%e5%88%b0com%e5%8f%a3-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1075228.html","title":{"rendered":"\u5982\u4f55\u5c06python\u8f93\u51fa\u5230com\u53e3"},"content":{"rendered":"

\"\u5982\u4f55\u5c06python\u8f93\u51fa\u5230com\u53e3\"<\/p>\n

\u8981\u5c06Python\u8f93\u51fa\u5230COM\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528pyserial\u5e93\u3001\u8bbe\u7f6e\u6b63\u786e\u7684\u4e32\u53e3\u53c2\u6570\u3001\u5199\u5165\u6570\u636e\u5e76\u5904\u7406\u5f02\u5e38\u3002<\/strong> <\/p>\n<\/p>\n

\u5176\u4e2d\uff0c\u4f7f\u7528pyserial\u5e93\u662f\u6700\u5173\u952e\u7684\u4e00\u6b65\u3002\u9996\u5148\uff0c\u9700\u8981\u786e\u4fdd\u5b89\u88c5\u4e86pyserial\u5e93\uff0c\u7136\u540e\u901a\u8fc7\u8bbe\u7f6e\u4e32\u53e3\u7aef\u53e3\u3001\u6ce2\u7279\u7387\u7b49\u53c2\u6570\u6765\u914d\u7f6e\u4e32\u53e3\u8fde\u63a5\uff0c\u6700\u540e\u4f7f\u7528write()\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165COM\u53e3\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b89\u88c5\u548c\u5bfc\u5165pyserial\u5e93<\/p>\n<\/p>\n

\u8981\u5c06\u6570\u636e\u8f93\u51fa\u5230COM\u53e3\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u5b89\u88c5pyserial\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n

pip install pyserial<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Python\u811a\u672c\u4e2d\u5bfc\u5165\u8be5\u5e93\uff1a<\/p>\n<\/p>\n
import serial<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u914d\u7f6e\u4e32\u53e3\u53c2\u6570<\/p>\n<\/p>\n
\u5728\u4f7f\u7528\u4e32\u53e3\u901a\u4fe1\u65f6\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6e\u4e32\u53e3\u7684\u76f8\u5173\u53c2\u6570\uff0c\u4f8b\u5982\u7aef\u53e3\u53f7\u3001\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u548c\u6821\u9a8c\u4f4d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u914d\u7f6e\u4e32\u53e3\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
ser = serial.Serial(<\/p>\n
    port='COM3',        # \u4e32\u53e3\u53f7\uff0c\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u4fee\u6539<\/p>\n
    baudrate=9600,      # \u6ce2\u7279\u7387<\/p>\n
    bytesize=serial.EIGHTBITS, # \u6570\u636e\u4f4d<\/p>\n
    parity=serial.PARITY_NONE, # \u6821\u9a8c\u4f4d<\/p>\n
    stopbits=serial.STOPBITS_ONE, # \u505c\u6b62\u4f4d<\/p>\n
    timeout=1           # \u8bfb\u53d6\u8d85\u65f6\u8bbe\u7f6e<\/p>\n
)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u5199\u5165\u6570\u636e\u5230COM\u53e3<\/p>\n<\/p>\n
\u914d\u7f6e\u597d\u4e32\u53e3\u53c2\u6570\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528write()\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165\u5230COM\u53e3\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5c06\u5b57\u7b26\u4e32\u6570\u636e\u5199\u5165\u5230COM\u53e3\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
data = 'Hello, COM port!'<\/p>\n
ser.write(data.encode('utf-8'))<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u5b57\u7b26\u4e32\u6570\u636e\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u636e\uff08\u5373\u7f16\u7801\u4e3aUTF-8\u683c\u5f0f\uff09\uff0c\u7136\u540e\u4f7f\u7528write()\u65b9\u6cd5\u5c06\u5176\u5199\u5165\u5230COM\u53e3\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5904\u7406\u5f02\u5e38<\/p>\n<\/p>\n
\u5728\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u5f02\u5e38\u60c5\u51b5\uff0c\u4f8b\u5982\u4e32\u53e3\u65e0\u6cd5\u6253\u5f00\u3001\u5199\u5165\u5931\u8d25\u7b49\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u8fd9\u4e9b\u5f02\u5e38\u60c5\u51b5\u8fdb\u884c\u5904\u7406\uff0c\u786e\u4fdd\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5904\u7406\u5f02\u5e38\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
try:<\/p>\n
    ser = serial.Serial('COM3', 9600, timeout=1)<\/p>\n
    ser.write(data.encode('utf-8'))<\/p>\n
except serial.SerialException as e:<\/p>\n
    print(f"Error: {e}")<\/p>\n
finally:<\/p>\n
    ser.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u786e\u4fdd\u5728\u9047\u5230\u5f02\u5e38\u65f6\u80fd\u591f\u6b63\u786e\u5904\u7406\uff0c\u5e76\u5728\u6700\u540e\u5173\u95ed\u4e32\u53e3\u8fde\u63a5\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5b9e\u4f8b\u5e94\u7528<\/p>\n<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u5b9e\u4f8b\u5e94\u7528\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5c06\u4f20\u611f\u5668\u6570\u636e\u901a\u8fc7\u4e32\u53e3\u8f93\u51fa\u5230COM\u53e3\uff1a<\/p>\n<\/p>\n
import serial<\/p>\n
import time<\/p>\n
def read_sensor_data():<\/p>\n
    # \u6a21\u62df\u8bfb\u53d6\u4f20\u611f\u5668\u6570\u636e<\/p>\n
    return 'Sensor data'<\/p>\n
def mAI<\/a>n():<\/p>\n
    try:<\/p>\n
        ser = serial.Serial('COM3', 9600, timeout=1)<\/p>\n
        while True:<\/p>\n
            data = read_sensor_data()<\/p>\n
            ser.write(data.encode('utf-8'))<\/p>\n
            time.sleep(1)<\/p>\n
    except serial.SerialException as e:<\/p>\n
        print(f"Error: {e}")<\/p>\n
    finally:<\/p>\n
        ser.close()<\/p>\n
if __name__ == '__main__':<\/p>\n
    main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u5b9e\u4f8b\u4e2d\uff0c\u6211\u4eec\u6a21\u62df\u4e86\u8bfb\u53d6\u4f20\u611f\u5668\u6570\u636e\u7684\u8fc7\u7a0b\uff0c\u5e76\u5c06\u6570\u636e\u901a\u8fc7\u4e32\u53e3\u8f93\u51fa\u5230COM\u53e3\u3002\u7a0b\u5e8f\u4f1a\u6bcf\u9694\u4e00\u79d2\u8bfb\u53d6\u4e00\u6b21\u4f20\u611f\u5668\u6570\u636e\uff0c\u5e76\u5c06\u5176\u5199\u5165\u5230COM\u53e3\uff0c\u76f4\u5230\u9047\u5230\u5f02\u5e38\u60c5\u51b5\u6216\u624b\u52a8\u7ec8\u6b62\u7a0b\u5e8f\u4e3a\u6b62\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/strong><\/p>\n<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u5c06Python\u8f93\u51fa\u5230COM\u53e3\u3002\u9996\u5148\uff0c\u5b89\u88c5\u548c\u5bfc\u5165pyserial\u5e93\uff1b\u5176\u6b21\uff0c\u914d\u7f6e\u4e32\u53e3\u53c2\u6570\uff1b\u7136\u540e\uff0c\u4f7f\u7528write()\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165\u5230COM\u53e3\uff1b\u6700\u540e\uff0c\u5904\u7406\u5f02\u5e38\u60c5\u51b5\u3002\u901a\u8fc7\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u53ef\u4ee5\u786e\u4fdd\u6211\u4eec\u7684\u7a0b\u5e8f\u80fd\u591f\u7a33\u5b9a\u5730\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\u3002<\/p>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8c03\u6574\u4e32\u53e3\u53c2\u6570\u548c\u6570\u636e\u5904\u7406\u903b\u8f91\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u7b49\u53c2\u6570\u6765\u9002\u5e94\u4e0d\u540c\u7684\u8bbe\u5907\u548c\u901a\u4fe1\u8981\u6c42\uff1b\u8fd8\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\uff0c\u5b9a\u5236\u6570\u636e\u8bfb\u53d6\u548c\u5904\u7406\u903b\u8f91\uff0c\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u4f7f\u7528Python\u4e0eCOM\u53e3\u8fdb\u884c\u901a\u4fe1\uff1f<\/strong>
\u4f7f\u7528Python\u8fdb\u884cCOM\u53e3\u901a\u4fe1\u901a\u5e38\u9700\u8981\u4f9d\u8d56\u4e8e\u7b2c\u4e09\u65b9\u5e93\uff0c\u5982pySerial<\/code>\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u5b89\u88c5\u8fd9\u4e2a\u5e93\uff08\u4f7f\u7528pip install pyserial<\/code>\uff09\u6765\u5b9e\u73b0\u4e0eCOM\u53e3\u7684\u6570\u636e\u4ea4\u4e92\u3002\u5b89\u88c5\u540e\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u4e32\u884c\u5bf9\u8c61\u5e76\u4f7f\u7528\u5176\u65b9\u6cd5\u6765\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u8fd9\u4f7f\u5f97\u4f60\u80fd\u591f\u8f7b\u677e\u5730\u4e0e\u5916\u90e8\u8bbe\u5907\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n
\u5728Python\u4e2d\u5982\u4f55\u914d\u7f6eCOM\u53e3\u53c2\u6570\uff1f<\/strong>
\u5728\u4f7f\u7528pySerial<\/code>\u5e93\u65f6\uff0c\u4f60\u53ef\u4ee5\u8bbe\u7f6e\u591a\u4e2a\u53c2\u6570\u6765\u786e\u4fdd\u4e0e\u8bbe\u5907\u7684\u6b63\u786e\u901a\u4fe1\u3002\u8fd9\u4e9b\u53c2\u6570\u5305\u62ec\u6ce2\u7279\u7387\uff08baud rate\uff09\u3001\u6570\u636e\u4f4d\uff08data bits\uff09\u3001\u505c\u6b62\u4f4d\uff08stop bits\uff09\u548c\u5947\u5076\u6821\u9a8c\uff08parity\uff09\u3002\u4f8b\u5982\uff0c\u521b\u5efa\u4e00\u4e2a\u4e32\u884c\u5bf9\u8c61\u65f6\uff0c\u53ef\u4ee5\u4f20\u5165\u8fd9\u4e9b\u53c2\u6570\uff0c\u786e\u4fdd\u5b83\u4eec\u4e0e\u76ee\u6807\u8bbe\u5907\u7684\u914d\u7f6e\u76f8\u5339\u914d\u3002<\/p>\n
\u5982\u4f55\u5904\u7406COM\u53e3\u901a\u4fe1\u4e2d\u7684\u9519\u8bef\u548c\u5f02\u5e38\uff1f<\/strong>
\u5728\u8fdb\u884cCOM\u53e3\u901a\u4fe1\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u591a\u79cd\u9519\u8bef\uff0c\u4f8b\u5982\u8bbe\u5907\u672a\u8fde\u63a5\u3001\u8d85\u65f6\u6216\u6570\u636e\u683c\u5f0f\u9519\u8bef\u7b49\u3002\u4e3a\u4e86\u63d0\u9ad8\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\uff0c\u5efa\u8bae\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u673a\u5236\uff08\u5982try-except\u8bed\u53e5\uff09\u6765\u6355\u83b7\u548c\u5904\u7406\u8fd9\u4e9b\u9519\u8bef\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5728\u51fa\u73b0\u95ee\u9898\u65f6\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\uff0c\u6216\u91c7\u53d6\u76f8\u5e94\u7684\u8865\u6551\u63aa\u65bd\uff0c\u786e\u4fdd\u7a0b\u5e8f\u7684\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5c06Python\u8f93\u51fa\u5230COM\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528pyserial\u5e93\u3001\u8bbe\u7f6e\u6b63\u786e\u7684\u4e32\u53e3\u53c2\u6570\u3001\u5199\u5165\u6570\u636e\u5e76\u5904\u7406\u5f02\u5e38\u3002 \u5176\u4e2d\uff0c\u4f7f […]","protected":false},"author":3,"featured_media":1075231,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1075228"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1075228"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1075228\/revisions"}],"predecessor-version":[{"id":1075237,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1075228\/revisions\/1075237"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1075231"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1075228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1075228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1075228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}