{"id":2845,"date":"2024-11-08T22:39:40","date_gmt":"2024-11-08T14:39:40","guid":{"rendered":"https:\/\/saludpcb.com\/zh\/?p=2845"},"modified":"2025-09-26T06:16:09","modified_gmt":"2025-09-25T22:16:09","slug":"mastering-c-design-patterns-i2c-management-esp32","status":"publish","type":"post","link":"https:\/\/saludpcb.com\/zh\/mastering-c-design-patterns-i2c-management-esp32\/","title":{"rendered":"\u4f7f\u7528 C++ Design Patterns \u548c ESP32 \u5be6\u73fe\u591a\u7d44 I2C \u8a2d\u5099\u7ba1\u7406"},"content":{"rendered":"\n<hr class=\"wp-block-separator alignwide has-text-color has-palette-color-1-color has-alpha-channel-opacity has-palette-color-1-background-color has-background is-style-wide\"\/>\n\n\n\n<p>\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 ESP32 \u4e0a\u4f7f\u7528 ESP-IDF\uff0c\u914d\u5408 C++ \u8a2d\u8a08\u6a21\u5f0f (Design Patterns) \u4f86\u8a2d\u8a08\u7a69\u5b9a\u7684 I2C BUS \u7ba1\u7406\u67b6\u69cb\uff0c\u4e26\u4f7f\u7528 esp_log \u9032\u884c\u7cfb\u7d71\u72c0\u614b\u8207\u6578\u64da\u64cd\u4f5c\u7684\u65e5\u8a8c\u8a18\u9304\u3002<\/p>\n\n\n\n<p>\u5728\u7269\u806f\u7db2\u548c\u5d4c\u5165\u5f0f\u7cfb\u7d71\u4e2d\uff0cI2C (Inter-Integrated Circuit) \u662f\u4e00\u7a2e\u5ee3\u6cdb\u61c9\u7528\u7684\u901a\u8a0a\u5354\u5b9a\u3002\u7576\u6211\u5011\u7684\u7cfb\u7d71\u4e2d\u6709\u591a\u7d44 I2C bus \u4e26\u4e14\u6bcf\u500b bus \u4e0a\u63a5\u6709\u591a\u500b I2C \u88dd\u7f6e\u6642\uff0c\u7ba1\u7406\u9019\u4e9b\u7e3d\u7dda\u8207\u88dd\u7f6e\u7684\u8b80\u5beb\u64cd\u4f5c\u53ef\u80fd\u6703\u8b8a\u5f97\u76f8\u7576\u8907\u96dc\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/saludpcb.com\/zh\/wp-content\/uploads\/2024\/11\/Mastering-C-Design-Patterns-for-I2C-Management-on-ESP32.jpg\" alt=\"Design Patterns\" class=\"wp-image-2857\" title=\"\" srcset=\"https:\/\/saludpcb.com\/zh\/wp-content\/uploads\/2024\/11\/Mastering-C-Design-Patterns-for-I2C-Management-on-ESP32.jpg 1024w, https:\/\/saludpcb.com\/zh\/wp-content\/uploads\/2024\/11\/Mastering-C-Design-Patterns-for-I2C-Management-on-ESP32-768x768.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>\u5167\u5bb9<\/h2><nav><ul><li class=\"\"><a href=\"#\u8a2d\u8a08\u76ee\u6a19\u8207\u67b6\u69cb\">\u8a2d\u8a08\u76ee\u6a19\u8207\u67b6\u69cb<\/a><\/li><li class=\"\"><a href=\"#\u958b\u767c\u74b0\u5883\u8a2d\u7f6e\">\u958b\u767c\u74b0\u5883\u8a2d\u7f6e<\/a><\/li><li class=\"\"><a href=\"#\u4f7f\u7528\u7684\u8a2d\u8a08\u6a21\u5f0f\">\u4f7f\u7528\u7684\u8a2d\u8a08\u6a21\u5f0f (Design Patterns)<\/a><\/li><li class=\"\"><a href=\"#\u7a0b\u5f0f\u8a2d\u8a08\">\u7a0b\u5f0f\u8a2d\u8a08\u65b9\u5f0f<\/a><\/li><li class=\"\"><a href=\"#\u5b9a\u7fa9\u55ae\u4e00-i-2-c-\u7e3d\u7dda\u7684\u7ba1\u7406\u985e\u5225-i-2-c-bus-manager\">\u5b9a\u7fa9 I2C BUS \u7684\u7ba1\u7406\u985e\u5225 I2CBusManager<\/a><\/li><li class=\"\"><a href=\"#\u4f7f\u7528-i-2-c-manager-factory-\u52d5\u614b\u7ba1\u7406\u591a\u7d44-i-2-c-bus\">\u4f7f\u7528 I2CManagerFactory \u52d5\u614b\u7ba1\u7406\u591a\u7d44 I2C BUS<\/a><\/li><li class=\"\"><a href=\"#\u5b9a\u7fa9\u88dd\u7f6e\u89c0\u5bdf\u8005-i-2-c-device-observer\">\u5b9a\u7fa9\u88dd\u7f6e\u89c0\u5bdf\u8005 I2CDeviceObserver<\/a><\/li><li class=\"\"><a href=\"#\u4e3b\u7a0b\u5f0f\u7bc4\u4f8b\">\u4e3b\u7a0b\u5f0f\u7bc4\u4f8b<\/a><\/li><li class=\"\"><a href=\"#\u8f38\u51fa\">\u8f38\u51fa<\/a><\/li><li class=\"\"><a href=\"#\u89e3\u8aaa\">\u89e3\u8aaa<\/a><\/li><li class=\"\"><a href=\"#\u7e3d\u7d50\">\u7e3d\u7d50<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u8a2d\u8a08\u76ee\u6a19\u8207\u67b6\u69cb\">\u8a2d\u8a08\u76ee\u6a19\u8207\u67b6\u69cb<\/h2>\n\n\n\n<p>\u76ee\u6a19\u662f\u5728 ESP32 \u4e0a\u5229\u7528\u8a2d\u8a08\u6a21\u5f0f (Design Patterns) \u69cb\u5efa\u4e00\u500b\u9748\u6d3b\u4e14\u53ef\u64f4\u5c55\u7684 I2C BUS \u7ba1\u7406\u7cfb\u7d71\uff0c\u9054\u5230\u4ee5\u4e0b\u9700\u6c42\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u591a\u7d44 I2C BUS<\/strong>\uff1a\u652f\u63f4\u591a\u7d44 I2C BUS\u3002<\/li>\n\n\n\n<li><strong>\u591a\u500b I2C \u88dd\u7f6e<\/strong>\uff1a\u6bcf\u7d44 BUS \u4e0a\u53ef\u63a5\u591a\u500b I2C \u88dd\u7f6e\u3002<\/li>\n\n\n\n<li><strong>\u6383\u63cf\u529f\u80fd<\/strong>\uff1a\u53ef\u4ee5\u6383\u63cf I2C BUS \u4e0a\u6240\u6709\u88dd\u7f6e\u7684\u5730\u5740\uff0c\u4fbf\u65bc\u78ba\u8a8d\u5143\u4ef6\u9023\u63a5\u60c5\u6cc1\u3002<\/li>\n\n\n\n<li><strong>\u8cc7\u6599\u8b80\u5beb\u529f\u80fd<\/strong>\uff1a\u53ef\u5411\u7279\u5b9a\u88dd\u7f6e\u9032\u884c\u8cc7\u6599\u8b80\u5beb\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u89c0\u5bdf\u6578\u64da\u8b8a\u5316<\/strong>\uff1a\u652f\u63f4\u88dd\u7f6e\u89c0\u5bdf\u8005\u6a21\u5f0f (Observer Pattern)\uff0c\u7576\u6578\u64da\u66f4\u65b0\u6642\u901a\u77e5\u89c0\u5bdf\u8005\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u958b\u767c\u74b0\u5883\u8a2d\u7f6e\">\u958b\u767c\u74b0\u5883\u8a2d\u7f6e<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f9e\u5b98\u65b9\u7db2\u7ad9\u5b89\u88dd <a href=\"https:\/\/code.visualstudio.com\" target=\"_blank\" rel=\"noopener\">Visual Studio Cod<\/a>e\u3002<\/li>\n\n\n\n<li>\u5b89\u88dd <a href=\"https:\/\/saludpcb.com\/zh\/esp32-tutorial-esp-idf-with-vscode\/\">ESP-IDF \u63d2\u4ef6<\/a>\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4f7f\u7528\u7684\u8a2d\u8a08\u6a21\u5f0f\">\u4f7f\u7528\u7684\u8a2d\u8a08\u6a21\u5f0f (Design Patterns)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Factory \u5de5\u5ee0\u8a2d\u8a08\u6a21\u5f0f<\/strong>\uff1a\u52d5\u614b\u7ba1\u7406\u591a\u7d44 I2C BUS \u7684\u521d\u59cb\u5316\u548c\u5be6\u4f8b\u5316\u3002<\/li>\n\n\n\n<li><strong>Observer \u89c0\u5bdf\u8005\u8a2d\u8a08\u6a21\u5f0f<\/strong>\uff1a\u5141\u8a31 I2C BUS \u4e0a\u7684\u88dd\u7f6e\u4f5c\u70ba\u89c0\u5bdf\u8005\uff0c\u5728\u6578\u64da\u8b8a\u52d5\u6642\u63a5\u6536\u901a\u77e5\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u7a0b\u5f0f\u8a2d\u8a08\">\u7a0b\u5f0f\u8a2d\u8a08\u65b9\u5f0f<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u6b65\u9a5f\u5c07\u8a73\u7d30\u8aaa\u660e\u5982\u4f55\u4f7f\u7528 ESP32 \u7684 ESP-IDF \u548c C++ \u8a2d\u8a08\u6a21\u5f0f (Design Patterns) \u4f86\u67b6\u8a2d\u591a\u7d44 I2C BUS\uff0c\u4e26\u9032\u884c\u88dd\u7f6e\u7ba1\u7406\u3002\u4e26\u4ee5 esp_log \u65e5\u8a8c\u7ba1\u7406\u4f86\u8a18\u9304 I2C \u64cd\u4f5c\u8207\u932f\u8aa4\u72c0\u614b\u548c\u89c0\u5bdf\u8a2d\u8a08\u6a21\u5f0f (Design Patterns)\uff0c\u4fbf\u65bc\u958b\u767c\u8005\u8ffd\u8e64\u548c\u9664\u932f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5b9a\u7fa9\u55ae\u4e00-i-2-c-\u7e3d\u7dda\u7684\u7ba1\u7406\u985e\u5225-i-2-c-bus-manager\">\u5b9a\u7fa9 I2C BUS \u7684\u7ba1\u7406\u985e\u5225 <code>I2CBusManager<\/code><\/h2>\n\n\n\n<p><code>I2CBusManager<\/code> \u662f\u4e00\u500b\u5c08\u9580\u7528\u4f86\u7ba1\u7406\u55ae\u4e00 I2C BUS \u7684\u985e\u5225\uff0c\u8ca0\u8cac\u8a72 BUS \u7684\u521d\u59cb\u5316\u3001\u6578\u64da\u8b80\u5beb\u3001\u88dd\u7f6e\u6383\u63cf\u4ee5\u53ca\u901a\u77e5\u6240\u6709\u8a3b\u518a\u7684\u89c0\u5bdf\u8005\uff08\u5373\u5728\u8a72 BUS \u4e0a\u7684\u88dd\u7f6e\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">#include \"driver\/i2c.h\"\n#include \"esp_log.h\"\n#include &lt;vector&gt;\n\nclass I2CDeviceObserver {\npublic:\n    virtual void onDataReceived(uint8_t* data, size_t length) = 0;\n};\n\nclass I2CBusManager {\nprivate:\n    i2c_port_t i2c_port;\n    int sda_pin;\n    int scl_pin;\n    std::vector&lt;I2CDeviceObserver*&gt; observers;\n\npublic:\n    I2CBusManager(i2c_port_t port, int sda, int scl, uint32_t clk_speed) \n        : i2c_port(port), sda_pin(sda), scl_pin(scl) {\n        i2c_config_t config;\n        config.mode = I2C_MODE_MASTER;\n        config.sda_io_num = sda_pin;\n        config.scl_io_num = scl_pin;\n        config.sda_pullup_en = GPIO_PULLUP_ENABLE;\n        config.scl_pullup_en = GPIO_PULLUP_ENABLE;\n        config.master.clk_speed = clk_speed;\n\n        ESP_ERROR_CHECK(i2c_param_config(i2c_port, &amp;config));\n        ESP_ERROR_CHECK(i2c_driver_install(i2c_port, config.mode, 0, 0, 0));\n        ESP_LOGI(\"I2CBusManager\", \"I2C bus initialized on I2C_NUM_%d with SDA:%d, SCL:%d\", i2c_port, sda_pin, scl_pin);\n    }\n\n    void scanBus() {\n        ESP_LOGI(\"I2CBusManager\", \"Starting I2C bus scan on I2C_NUM_%d...\", i2c_port);\n        for (uint8_t address = 0x03; address &lt; 0x78; ++address) {\n            i2c_cmd_handle_t cmd = i2c_cmd_link_create();\n            i2c_master_start(cmd);\n            i2c_master_write_byte(cmd, (address &lt;&lt; 1) | I2C_MASTER_WRITE, true);\n            i2c_master_stop(cmd);\n            esp_err_t ret = i2c_master_cmd_begin(i2c_port, cmd, 10 \/ portTICK_PERIOD_MS);\n            i2c_cmd_link_delete(cmd);\n\n            if (ret == ESP_OK) {\n                ESP_LOGI(\"I2CBusManager\", \"Device found at address 0x%X on I2C_NUM_%d\", address, i2c_port);\n            }\n        }\n        ESP_LOGI(\"I2CBusManager\", \"I2C bus scan completed on I2C_NUM_%d\", i2c_port);\n    }\n\n    void addObserver(I2CDeviceObserver* observer) {\n        observers.push_back(observer);\n    }\n\n    void notifyObservers(uint8_t* data, size_t length) {\n        for (auto observer : observers) {\n            observer-&gt;onDataReceived(data, length);\n        }\n    }\n\n    void writeToDevice(uint8_t address, uint8_t* data, size_t length) {\n        i2c_cmd_handle_t cmd = i2c_cmd_link_create();\n        i2c_master_start(cmd);\n        i2c_master_write_byte(cmd, (address &lt;&lt; 1) | I2C_MASTER_WRITE, true);\n        i2c_master_write(cmd, data, length, true);\n        i2c_master_stop(cmd);\n        esp_err_t ret = i2c_master_cmd_begin(i2c_port, cmd, 1000 \/ portTICK_PERIOD_MS);\n        i2c_cmd_link_delete(cmd);\n\n        if (ret == ESP_OK) {\n            ESP_LOGI(\"I2CBusManager\", \"Data written to device at 0x%X on I2C_NUM_%d\", address, i2c_port);\n        } else {\n            ESP_LOGE(\"I2CBusManager\", \"Failed to write to device at 0x%X on I2C_NUM_%d\", address, i2c_port);\n        }\n    }\n\n    void readFromDevice(uint8_t address, uint8_t* data, size_t length) {\n        i2c_cmd_handle_t cmd = i2c_cmd_link_create();\n        i2c_master_start(cmd);\n        i2c_master_write_byte(cmd, (address &lt;&lt; 1) | I2C_MASTER_READ, true);\n        i2c_master_read(cmd, data, length, I2C_MASTER_LAST_NACK);\n        i2c_master_stop(cmd);\n        esp_err_t ret = i2c_master_cmd_begin(i2c_port, cmd, 1000 \/ portTICK_PERIOD_MS);\n        i2c_cmd_link_delete(cmd);\n\n        if (ret == ESP_OK) {\n            ESP_LOGI(\"I2CBusManager\", \"Data read from device at 0x%X on I2C_NUM_%d\", address, i2c_port);\n            notifyObservers(data, length);\n        } else {\n            ESP_LOGE(\"I2CBusManager\", \"Failed to read from device at 0x%X on I2C_NUM_%d\", address, i2c_port);\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4f7f\u7528-i-2-c-manager-factory-\u52d5\u614b\u7ba1\u7406\u591a\u7d44-i-2-c-bus\">\u4f7f\u7528 <code>I2CManagerFactory<\/code> \u52d5\u614b\u7ba1\u7406\u591a\u7d44 I2C BUS<\/h2>\n\n\n\n<p><code>I2CManagerFactory<\/code> \u4f7f\u7528\u5de5\u5ee0\u6a21\u5f0f\u7ba1\u7406 I2C BUS \u7684\u521d\u59cb\u5316\u548c\u5be6\u4f8b\u5316\uff0c\u78ba\u4fdd\u6bcf\u7d44 BUS \u53ea\u88ab\u521d\u59cb\u5316\u4e00\u6b21\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">#include &lt;map&gt;\n\nclass I2CManagerFactory {\nprivate:\n    std::map&lt;i2c_port_t, I2CBusManager*&gt; i2c_buses;\n\npublic:\n    I2CBusManager* getI2CBusManager(i2c_port_t port, int sda, int scl, uint32_t clk_speed = 100000) {\n        if (i2c_buses.find(port) == i2c_buses.end()) {\n            i2c_buses[port] = new I2CBusManager(port, sda, scl, clk_speed);\n            ESP_LOGI(\"I2CManagerFactory\", \"Created new I2CBusManager for I2C_NUM_%d\", port);\n        } else {\n            ESP_LOGW(\"I2CManagerFactory\", \"I2C_NUM_%d already initialized\", port);\n        }\n        return i2c_buses[port];\n    }\n\n    ~I2CManagerFactory() {\n        for (auto&amp; pair : i2c_buses) {\n            delete pair.second;\n        }\n    }\n};<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5b9a\u7fa9\u88dd\u7f6e\u89c0\u5bdf\u8005-i-2-c-device-observer\">\u5b9a\u7fa9\u88dd\u7f6e\u89c0\u5bdf\u8005 <code>I2CDeviceObserver<\/code><\/h2>\n\n\n\n<p>\u9019\u500b\u89c0\u5bdf\u8005\u6a21\u5f0f\u5141\u8a31\u7279\u5b9a\u7684 I2C \u88dd\u7f6e\u5728\u6578\u64da\u66f4\u65b0\u6642\u63a5\u6536\u901a\u77e5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">class SensorDevice : public I2CDeviceObserver {\npublic:\n    void onDataReceived(uint8_t* data, size_t length) override {\n        \/\/ Handle the received data\n        ESP_LOGI(\"SensorDevice\", \"Received data of length %d\", length);\n    }\n};<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4e3b\u7a0b\u5f0f\u7bc4\u4f8b\">\u4e3b\u7a0b\u5f0f\u7bc4\u4f8b<\/h2>\n\n\n\n<p>\u6700\u5f8c\uff0c\u5c07\u9019\u4e9b\u7d44\u4ef6\u653e\u5728\u4e3b\u7a0b\u5f0f\u4e2d\u9032\u884c\u6574\u5408\uff0c\u4e26\u6383\u63cf\u6bcf\u7d44 I2C BUS \u4ee5\u78ba\u8a8d\u9023\u63a5\u7684\u88dd\u7f6e\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">extern \"C\" void app_main() {\n    I2CManagerFactory factory;\n\n    \/\/ Initialize two I2C buses\n    I2CBusManager* bus0 = factory.getI2CBusManager(I2C_NUM_0, GPIO_NUM_21, GPIO_NUM_22);\n    I2CBusManager* bus1 = factory.getI2CBusManager(I2C_NUM_1, GPIO_NUM_18, GPIO_NUM_19);\n\n    \/\/ Perform scanning\n    bus0-&gt;scanBus();\n    bus1-&gt;scanBus();\n\n    \/\/ Create and register a device observer\n    SensorDevice sensor;\n    bus0-&gt;addObserver(&amp;sensor);\n\n    \/\/ Example of writing and reading data\n    uint8_t data_to_write[2] = {0x01, 0x02};\n    bus0-&gt;writeToDevice(0x48, data_to_write, 2);\n\n    uint8_t data_to_read[2];\n    bus0-&gt;readFromDevice(0x48, data_to_read, 2);\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u8f38\u51fa\">\u8f38\u51fa<\/h2>\n\n\n\n<p>\u5728 main.cpp \u6587\u4ef6\u4e2d\u57f7\u884c\u6b64\u7a0b\u5f0f\u78bc\u4e26\u6210\u529f\u4e0a\u50b3\u81f3 ESP32 \u958b\u767c\u677f\u5f8c\uff0c\u60a8\u53ef\u4ee5\u900f\u904e ESP-IDF \u63d2\u4ef6\u5de5\u5177\u4f86\u6aa2\u8996\u65e5\u8a8c\u8f38\u51fa\u3002\u4ee5\u4e0b\u662f\u9810\u671f\u7684\u65e5\u8a8c\u8f38\u51fa\u7bc4\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">I (100) I2CBusManager: I2C bus initialized on I2C_NUM_0 with SDA:21, SCL:22\nI (110) I2CBusManager: I2C bus initialized on I2C_NUM_1 with SDA:18, SCL:19\nI (120) I2CBusManager: Starting I2C bus scan on I2C_NUM_0...\nI (150) I2CBusManager: Device found at address 0x48 on I2C_NUM_0\nI (160) I2CBusManager: I2C bus scan completed on I2C_NUM_0\nI (170) I2CBusManager: Starting I2C bus scan on I2C_NUM_1...\nI (200) I2CBusManager: I2C bus scan completed on I2C_NUM_1\nW (210) I2CManagerFactory: I2C_NUM_0 already initialized\nI (220) I2CBusManager: Data written to device at 0x48 on I2C_NUM_0\nI (230) I2CBusManager: Data read from device at 0x48 on I2C_NUM_0\nI (240) SensorDevice: Received data of length 2<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u89e3\u8aaa\">\u89e3\u8aaa<\/h2>\n\n\n\n<p><strong>I2C BUS \u521d\u59cb\u5316<\/strong>\uff1a\u9019\u986f\u793a I2C BUS <code>I2C_NUM_0<\/code> \u548c <code>I2C_NUM_1<\/code> \u5df2\u5206\u5225\u4f7f\u7528 SDA \u548c SCL \u5f15\u8173\u521d\u59cb\u5316\u3002<\/p>\n\n\n\n<p><strong>I2C BUS \u6383\u63cf<\/strong>\uff1a\u5728\u6383\u63cf <code>I2C_NUM_0<\/code> BUS \u6642\uff0c\u5075\u6e2c\u5230\u4f4d\u65bc <code>0x48<\/code> \u7684 I2C \u88dd\u7f6e\u3002<\/p>\n\n\n\n<p><strong>\u8cc7\u6599\u5beb\u5165\u8207\u8b80\u53d6<\/strong>\uff1a\u5df2\u6210\u529f\u5beb\u5165\u8cc7\u6599\u81f3 <code>I2C_NUM_0<\/code> \u4e0a\u7684 <code>0x48<\/code> \u88dd\u7f6e\u4e26\u6210\u529f\u5f9e\u88dd\u7f6e\u8b80\u53d6\u6578\u64da\u3002<\/p>\n\n\n\n<p><strong>\u89c0\u5bdf\u8005\u63a5\u6536\u8cc7\u6599<\/strong>\uff1a\u7576\u8b80\u53d6\u8cc7\u6599\u6210\u529f\u5f8c\u4e26\u901a\u77e5\u4e86 <code>SensorDevice<\/code> \u88dd\u7f6e\u548c\u986f\u793a\u63a5\u6536\u5230\u6578\u64da\u3002<\/p>\n\n\n\n<p>\u9019\u4e9b\u65e5\u8a8c\u8a0a\u606f\u53ef\u4ee5\u6e05\u695a\u4e86\u89e3\u6211\u5011\u4ee5 C++ \u8a2d\u8a08\u6a21\u5f0f (Design Patterns) \u4f86\u5be6\u73fe I2C BUS \u7684\u521d\u59cb\u5316\u904e\u7a0b\u3001\u6383\u63cf\u7d50\u679c\u3001\u8cc7\u6599\u8b80\u53d6\u8207\u5beb\u5165\u7b49\u64cd\u4f5c\u662f\u5426\u6210\u529f\uff0c\u4e26\u89c0\u5bdf\u88dd\u7f6e\u6578\u64da\u8b8a\u5316\u7684\u901a\u77e5\u60c5\u6cc1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u7e3d\u7d50\">\u7e3d\u7d50<\/h2>\n\n\n\n<p>\u5728 ESP32 \u4e0a\u4f7f\u7528 C++ \u8a2d\u8a08\u6a21\u5f0f (Design Patterns) \u5efa\u7acb\u591a\u7d44 I2C BUS \u7ba1\u7406\u7684\u67b6\u69cb\uff0c\u4e26\u900f\u904e <code>esp_log<\/code> \u5be6\u73fe\u5b8c\u5584\u7684\u65e5\u8a8c\u8a18\u9304\u3002\u901a\u904e\u5c07 <code>I2CBusManager<\/code>\u3001<code>I2CManagerFactory<\/code> \u548c\u89c0\u5bdf\u8005\u6a21\u5f0f\u76f8\u7d50\u5408\uff0c\u53ef\u4ee5\u8f15\u9b06\u7ba1\u7406\u591a\u7d44 I2C BUS \u53ca\u5176\u4e0a\u591a\u500b I2C \u88dd\u7f6e\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u4e26\u52d5\u614b\u8655\u7406\u6578\u64da\u8b8a\u5316\u901a\u77e5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator alignwide has-text-color has-palette-color-1-color has-alpha-channel-opacity has-palette-color-1-background-color has-background is-style-wide\"\/>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 ESP32 \u4e0a\u4f7f\u7528 ESP-IDF\uff0c\u914d\u5408 C++ \u8a2d\u8a08\u6a21\u5f0f (Design Patterns [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2858,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,53,83],"tags":[61,27,63,20,60,10,64,11,62],"class_list":["post-2845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-module","category-esp32","category-featured","tag-bluetooth","tag-c","tag-firmware","tag-hardware","tag-iot","tag-mcu","tag-module","tag-tutorial","tag-wifi"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts\/2845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/comments?post=2845"}],"version-history":[{"count":19,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts\/2845\/revisions"}],"predecessor-version":[{"id":2958,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts\/2845\/revisions\/2958"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/media\/2858"}],"wp:attachment":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/media?parent=2845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/categories?post=2845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/tags?post=2845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}