{"id":134,"date":"2026-01-22T10:40:31","date_gmt":"2026-01-22T02:40:31","guid":{"rendered":"http:\/\/47.110.38.12\/?p=134"},"modified":"2026-01-22T15:53:46","modified_gmt":"2026-01-22T07:53:46","slug":"shtsensor","status":"publish","type":"post","link":"https:\/\/edryan.top\/index.php\/2026\/01\/22\/shtsensor\/","title":{"rendered":"SHTx\u7cfb\u5217\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u9a71\u52a8\uff08IIC\uff09"},"content":{"rendered":"\n

\u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\uff0cSHTx \u7cfb\u5217\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u9ad8\u7cbe\u5ea6\u548c\u4f4e\u529f\u8017\uff0c\u6210\u4e3a\u667a\u80fd\u5bb6\u5c45\u3001\u73af\u5883\u76d1\u6d4b\u3001\u5de5\u4e1a\u63a7\u5236\u7b49\u573a\u666f\u7684\u4e3b\u6d41\u9009\u62e9\u3002\u76ee\u524d\u4e3b\u6d41\u4f7f\u7528\u7684SHT3x\/SHT4x\u578b\u53f7\u7684\u4fe1\u53f7\u63a5\u53e3\u4e3a\u6807\u51c6\u7684I2C \u8bbe\u8ba1<\/p>\n\n\n\n

\u5bf9\u4e8e\u5f00\u53d1\u8005\u800c\u8a00\uff0c\u5bf9\u4e8e\u4e0d\u540c\u578b\u53f7\u7684\u4f20\u611f\u5668\uff0c\u65e0\u9700\u91cd\u590d\u9020\u8f6e\u5b50\uff0c\u53ea\u9700\u638c\u63e1\u5176\u901a\u7528\u9a71\u52a8\u6846\u67b6\u4ee5\u53ca\u901a\u4fe1\u914d\u7f6e\uff0c\u518d\u6839\u636e\u578b\u53f7\u4ee5\u53ca\u6570\u636e\u624b\u518c\u7684\u5dee\u5f02\u505a\u7ec6\u8282\u9002\u914d\uff0c\u5c31\u80fd\u5feb\u901f\u5b9e\u73b0\u7a33\u5b9a\u3001\u53ef\u9760\u7684\u6570\u636e\u91c7\u96c6\u3002<\/p>\n\n\n\n

\u6211\u5c06\u4ece SHTx \u7cfb\u5217\u7684\u901a\u4fe1\u539f\u7406\u51fa\u53d1\uff0c\u62c6\u89e3\u9a71\u52a8\u5f00\u53d1\u7684\u6838\u5fc3\u8981\u70b9\uff0cI2C\uff08\u53ca\u4e13\u7528 2 \u7ebf\uff09\u63a5\u53e3\u914d\u7f6e\u3001\u6307\u4ee4\u4ea4\u4e92\u3001\u6570\u636e\u6821\u9a8c\u3001\u6e29\u6e7f\u5ea6\u6362\u7b97\u7b49\u5173\u952e\u73af\u8282\uff0c\u540c\u65f6\u7ed3\u5408\u5d4c\u5165\u5f0f\u5f00\u53d1\u5e38\u7528\u7684 MCU \u5e73\u53f0\u7ed9\u51fa\u5b9e\u6218\u4ee3\u7801\u601d\u8def\uff0c\u6700\u540e\u7ed9\u51fa\u5927\u5bb6\u5b9e\u6218\u7684\u4ee3\u7801\uff0c\u5e2e\u52a9\u5927\u5bb6\u5feb\u901f\u5b8c\u6210 SHTx \u7cfb\u5217\u4f20\u611f\u5668\u7684\u9a71\u52a8\u5f00\u53d1\u4e0e\u79fb\u690d\u3002<\/p>\n\n\n

\n
\"\"<\/div><\/figure>\n<\/div>\n\n\n

SHT\u7cfb\u5217\u4f20\u611f\u5668\u6709\u591a\u79cd\u529f\u80fd\u548c\u6a21\u5f0f\uff0c\u9700\u8981\u6211\u4eec\u901a\u8fc7IIC\u603b\u7ebf\uff0c\u5411\u4f20\u611f\u5668\u5185\u90e8\u7684\u5bc4\u5b58\u5668\u4e0b\u53d1\u6307\u4ee4\uff0c\u5e76\u901a\u8fc7IIC\u603b\u7ebf\u63a5\u6536\u4f20\u611f\u5668\u53d1\u51fa\u7684\u6570\u636e<\/strong>\uff0c\u8fd9\u662f\u4f7f\u7528\u8fd9\u4e2a\u4f20\u611f\u5668\u7684\u6838\u5fc3\u601d\u60f3\u3002<\/p>\n\n\n\n

\u4f7f\u7528STM32HAL\u5e93\u8fdb\u884c\u5f00\u53d1\uff0c\u9996\u5148\u8981\u4e86\u89e3\u57fa\u7840\u7684CubeMX\u7684IIC\u914d\u7f6e\u3001IIC\u534f\u8bae\u4ee5\u53ca\u57fa\u7840\u7684HAL\u5e93\u4ee3\u7801\u3002<\/p>\n\n\n\n

IIC\u7684\u914d\u7f6e\u6ca1\u6709\u4ec0\u4e48\u9700\u8981\u7279\u6b8a\u8bf4\u660e\u7684\uff0c\u76f4\u63a5\u6253\u5f00I2C\u7684\u5f00\u5173\u5373\u53ef\uff0c\u5177\u4f53\u662f\u54ea\u4e00\u4e2aIIC\u770b\u81ea\u5df1\u559c\u597d\u3002\u9700\u8981\u8bf4\u660e\u7684\u662f\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9IIC\u7684\u901a\u4fe1\u901f\u7387\uff0c100k\u3001400k\u30011MHz\u4e09\u6321\u53ef\u9009\uff0c\u9009\u62e9\u65f6\u9700\u8981\u6ce8\u610f\u4f60\u4f7f\u7528\u7684IIC\u5668\u4ef6\u6240\u652f\u6301\u7684\u6700\u9ad8IIC\u901f\u7387<\/strong>\u3002<\/p>\n\n\n

\n
\"\"<\/div><\/figure>\n<\/div>\n\n\n

\u4ee5\u4e0b\u4e24\u884c\u4ee3\u7801\uff0c\u5206\u522b\u662f\u4f7f\u7528Hal\u5e93\u4e2d\u4f7f\u7528IIC\u8fdb\u884c\u53d1\u9001\u548c\u63a5\u6536\u7684\u51fd\u6570\uff0c<\/p>\n\n\n\n

HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,uint16_t Size, uint32_t Timeout)\nHAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,uint16_t Size, uint32_t Timeout)<\/code><\/pre>\n\n\n\n
\u5176\u4e2d\uff1a<\/p>\n\n\n\n
\n
\n
\n
\u201d*hi2c\u201d\u662f\u6307\u5f00\u53d1\u8005\u6240\u5f00\u542f\u7684i2c\u7f16\u53f7\uff0c\u5982\u5f00\u53d1\u8005\u901a\u8fc7CubeMX\u6253\u5f00\u4e86i2c1\u7684\u914d\u7f6e\uff0c\u8fd9\u91cc\u5c31\u9700\u8981\u8c03\u7528I2C1\u7684\u5730\u5740\uff1a&hi2c1\uff1b<\/em><\/p>\n\n\n\n
\u201cDevAddress\u201d\u662f7\u4f4d\u8bbe\u5907\u5730\u5740\u52a01\u4f4d\u8bfb\u5199\u5730\u5740\uff0c\u5728IIC\u4e2d\uff0c\u8bfb\u5199\u4f4d\u5730\u5740\u7684\u89c4\u5b9a\u4e3a\uff1a0\u4e3a\u5199\uff0c1\u4e3a\u8bfb\uff1b<\/em><\/p>\n\n\n\n
\u201c*pData\u201d\u662f\u4f60\u6240\u8981\u5199\u5165\u6216\u8005\u8bfb\u51fa\u6570\u636e\u7684\u5730\u5740\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\u8fd9\u4e2a\u6570\u636e\u9700\u8981\u662f8\u4f4d\u7684\uff1b<\/em><\/p>\n\n\n\n
\u201cSize\u201d\u5219\u662f\u6211\u4eec\u9700\u8981\u5199\u5165\u6216\u8005\u8bfb\u51fa\u6570\u636e\u7684\u5b57\u8282\u7684\u4e2a\u6570<\/strong>\uff1b<\/em><\/p>\n\n\n\n
\u201cTimeout\u201d\u5219\u662f\u8d85\u65f6\u65f6\u95f4\uff0c\u5f88\u591a\u5916\u8bbe\u7684\u51fd\u6570\u90fd\u542b\u6709\u8fd9\u4e2a\u53c2\u6570\uff0c\u5728IIC\u4f7f\u7528\u4e2d\u901a\u5e38\u53ef\u4ee5\u8bbe\u7f6e\u4e3aIIC\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u5efa\u8bae>10ms<\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
\u4ee5\u4e0a\u8fd9\u4e00\u5757\u76f8\u5f53\u4e8e\u590d\u4e60\u4e86\u4e00\u904dSTM32HAL\u5e93IIC\u7684\u4f7f\u7528\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u9700\u8981\u6839\u636eSHT30\u7684\u6570\u636e\u624b\u518c\uff0c\u6765\u5c1d\u8bd5\u9a71\u52a8SHT30\u8fd9\u4e2a\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\uff1a<\/p>\n\n\n\n
\n
\u5bf9\u4e8e\u4e00\u4e2aIIC\u5668\u4ef6\uff0c\u6211\u4eec\u9996\u5148\u8981\u4ece\u6570\u636e\u624b\u518c\u4e2d\u5bfb\u627e\u5b83\u7684\u5668\u4ef6\u5730\u5740\u548c\u64cd\u4f5c\u6307\u4ee4\uff1b<\/p>\n\n\n\n
\u7531\u5b83\u7684\u6570\u636e\u624b\u518c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\uff0c\u5728\u5668\u4ef6\u82af\u7247\u7684ADDR\u5f15\u811a\u8fde\u63a5\u4f4e\u7535\u5e73\u65f6\uff0c\u5668\u4ef6\u7684\u5730\u5740\u4e3a0x44\uff0c\u82e5\u5668\u4ef6\u7684ADDR\u8fde\u63a5\u9ad8\u7535\u5e73\uff0c\u5219\u4e3a0x45\uff1b\u901a\u5e38\u6765\u8bf4\uff0cIIC\u5668\u4ef6\u5730\u5740\u5c31\u4e3a0x44<\/strong>\uff0c\u9664\u975e\u4f60\u6240\u8d2d\u4e70\u7684\u6a21\u5757\u5382\u5bb6\u6709\u7279\u6b8a\u8bf4\u660e\u3002<\/em><\/p>\n\n\n\n
\u6839\u636e\u6570\u636e\u624b\u518c\uff0c\u53ef\u4ee5\u77e5\u9053SHT30\u7684\u5de5\u4f5c\u6a21\u5f0f\u6709\u5355\u6b21\u6d4b\u91cf<\/strong>\u548c\u5468\u671f\u6d4b\u91cf<\/strong>\u4e24\u79cd\uff0c\u5e76\u53ef\u4ee5\u77e5\u9053\u4ed6\u4eec\u7684\u64cd\u4f5c\u6307\u4ee4\u3002<\/p>\n<\/div>\n\n\n
\n
\"\"<\/div><\/figure>\n<\/div>\n\n\n
\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n<\/div>\n\n\n\n
\u4ee5\u53ca\u5468\u671f\u6d4b\u91cf\u7ed3\u679c\u7684\u8bfb\u51fa\u548c\u505c\u6b62\uff0c\u5176\u4e2d\u9700\u8981\u7559\u610f\u7684\u662f\u5468\u671f\u6d4b\u91cf\u7684\u7ed3\u679c\u4e00\u6b21\u6027\u8bfb\u51fa\u516d\u4e2a\u5b57\u8282\uff0c\u4e14\u8bfb\u51fa\u7684\u6570\u636e\u9700\u8981\u7ecf\u8fc7\u6362\u7b97\u624d\u80fd\u591f\u5f97\u5230\u6e29\u6e7f\u5ea6\uff1a<\/p>\n\n\n\n
\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n<\/div>\n\n\n\n
\u7efc\u5408\u4e0a\u8ff0\u8bf4\u660e\uff0c\u6211\u4eec\u7b97\u662f\u5927\u81f4\u4e86\u89e3\u4e86SHT30\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u5468\u671f\u6d4b\u91cf\u4e3a\u4f8b\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u4ee3\u7801\u6765\u9a71\u52a8\u4f20\u611f\u5668<\/p>\n\n\n\n
\nuint8_t SHT3X_Modecommand_Buffer[2]={0x23,0x22}; \/\/SHT\u4f20\u611f\u5668\u6307\u4ee4\nuint8_t SHT3X_Fetchcommand_Buffer[2]={0xE0,0x00};\/\/\u8bfb\u53d6\u6d4b\u91cf\u7ed3\u679c\nuint8_t SHT3X_Data_Buffer[6]; \/\/byte0,1\u4e3a\u6e29\u5ea6 byte4,5\u4e3a\u6e7f\u5ea6\n\nfloat Hum;\/\/\u6e7f\u5ea6,\u6b63\u6570\nfloat Tem;\/\/\u6e29\u5ea6\n\n\/\/\u4f20\u611f\u5668\u521d\u59cb\u5316\u51fd\u6570\nvoid SensorInit()\n{\n\tHAL_I2C_Master_Transmit(&hi2c1,0x44<<1,SHT3X_Modecommand_Buffer,2,0x10); \/\/\u7b2c\u4e00\u6b65\uff0c\u53d1\u900116\u4f4d\u6570\u636e0x22\uff0c0x36\uff0c\u4f20\u611f\u5668\u5468\u671f\u6027\u7684\u8fdb\u884c\u6e29\u6e7f\u5ea6\u8f6c\u6362\n}\n\n\/\/\u4f20\u611f\u5668\u8bfb\u53d6\u51fd\u6570\nvoid SensorRead()\n{\n\tHAL_I2C_Master_Transmit(&hi2c1,0x44<<1,SHT3X_Fetchcommand_Buffer,2,0x10); \/\/\u7b2c\u4e8c\u6b65\uff0c\u53d1\u9001\u8bfb\u53d6\u6307\u4ee4\uff1a0xE0,0x00\uff0c\u968f\u65f6\u8bfb\u53d6\u4f20\u611f\u5668\u7684\u6570\u636e \n\tHAL_I2C_Master_Receive(&hi2c1,(0x44<<1)+1,SHT3X_Data_Buffer,6,0x10); \/\/\u8bbe\u7f6e\u6e29\u6e7f\u5ea6IIC\u4f20\u8f93\u5730\u5740\n\tTem=(float)((((SHT3X_Data_Buffer[0]<<8)+SHT3X_Data_Buffer[1])*175)\/65535.0f)-45; \/\/\u8bfb\u53d6\u6444\u6c0f\u5ea6\u6e29\u5ea6 \n\tHum=(((SHT3X_Data_Buffer[3]<<8)+SHT3X_Data_Buffer[4])*100)\/65535.0f; \/\/\u8bfb\u53d6\u76f8\u5bf9\u6e7f\u5ea6\n}\n\n\/\/\u901a\u8fc7\u4e32\u53e3\u663e\u793a\u7ed3\u679c\uff0c\u653e\u5165\u4e2d\u65ad\u6216\u8005\u8f6e\u8be2\u5373\u53ef\nvoid SensorShow()\n{\n\tSensorRead();\n\tprintf(\"Tem:%.2f  Hum:%.2f\\r\\n\",Tem,Hum);\n}\n<\/code><\/pre>\n\n\n\n
\u5bf9\u4e0a\u9762\u8fd9\u51e0\u884c\u4ee3\u7801\uff0c\u6709\u51e0\u70b9\u9700\u8981\u8bf4\u660e\uff0c\u6211\u4f7f\u7528\u7684\u5468\u671f\u6d4b\u91cf\u6307\u4ee4\u4e3a0x23,0x22\uff0c\u662f4Hz\u4e2d\u91cd\u590d\u6027\u6d4b\u91cf\u6307\u4ee4<\/strong>\uff0c\u8fd8\u67090.5Hz\u30011Hz\u30012Hz\u300110Hz\u6d4b\u91cf\u9891\u7387\u53ef\u9009\uff1b\u4e14sht30\u7684\u5468\u671f\u8f6c\u6362\u5f00\u542f\u540e\uff0c\u4f1a\u81ea\u52a8\u53d1\u9001\u6570\u636e\uff0c\u53ef\u4ee5\u628a\u8fd9\u884c\u4ee3\u7801\u5220\u9664\uff0c\u4e0d\u5f71\u54cd\u6b63\u5e38\u529f\u80fd\uff1a<\/p>\n\n\n\n
HAL_I2C_Master_Transmit(&hi2c1,0x44<<1,SHT3X_Fetchcommand_Buffer,2,0x10); \/\/\u7b2c\u4e8c\u6b65\uff0c\u53d1\u9001\u8bfb\u53d6\u6307\u4ee4\uff1a0xE0,0x00\uff0c\u968f\u65f6\u8bfb\u53d6\u4f20\u611f\u5668\u7684\u6570\u636e <\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
\n
\u9644\uff1aSHT3x\u8d44\u6599\u5305<\/em><\/p>\n\n\n\n
\u901a\u8fc7\u7f51\u76d8\u5206\u4eab\u7684\u6587\u4ef6\uff1aSHT30\u8d44\u6599\u5305
\u94fe\u63a5: https:\/\/pan.baidu.com\/s\/1fZ5WnKISS9RIa2Uu2PoWCw?pwd=6666 \u63d0\u53d6\u7801: 6666
–\u6765\u81ea\u767e\u5ea6\u7f51\u76d8\u8d85\u7ea7\u4f1a\u5458v5\u7684\u5206\u4eab<\/em><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"
\u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\uff0cSHTx \u7cfb\u5217\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u9ad8\u7cbe\u5ea6\u548c\u4f4e\u529f\u8017\uff0c\u6210\u4e3a\u667a\u80fd\u5bb6\u5c45\u3001\u73af\u5883\u76d1\u6d4b\u3001\u5de5\u4e1a\u63a7\u5236\u7b49\u573a\u666f\u7684\u4e3b\u6d41\u9009\u62e9\u3002\u76ee […]<\/p>\n","protected":false},"author":1,"featured_media":143,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-embedded"],"jetpack_featured_media_url":"https:\/\/edryan.top\/wp-content\/uploads\/2026\/01\/\u5c4f\u5e55\u622a\u56fe-2026-01-22-105138.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/posts\/134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/comments?post=134"}],"version-history":[{"count":30,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/posts\/134\/revisions"}],"predecessor-version":[{"id":223,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/posts\/134\/revisions\/223"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/media\/143"}],"wp:attachment":[{"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/media?parent=134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/categories?post=134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edryan.top\/index.php\/wp-json\/wp\/v2\/tags?post=134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}