code: rc522

code/10.practice/common_modules/rc522/.gitignore

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+managed_components/

code/10.practice/common_modules/rc522/CMakeLists.txt

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+# The following lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.16)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(hello_world)

code/10.practice/common_modules/rc522/dependencies.lock

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+dependencies:
+  abobija/rc522:
+    component_hash: 0186675032931158602686994c975ec8937a328880d8fb3c44fbf5630195f201
+    dependencies:
+    - name: idf
+      require: private
+      version: ^5.0
+    source:
+      registry_url: https://components.espressif.com/
+      type: service
+    version: 3.3.2
+  idf:
+    source:
+      type: idf
+    version: 5.4.1
+direct_dependencies:
+- abobija/rc522
+- idf
+manifest_hash: f0cca0d4e3c8a6cf205b2e5319f6f85dee2685a51486835b8e35f292652c2fc3
+target: esp32
+version: 2.0.0

code/10.practice/common_modules/rc522/main/CMakeLists.txt

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+idf_component_register(SRCS "main.c"
+                    INCLUDE_DIRS "")

code/10.practice/common_modules/rc522/main/idf_component.yml

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+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=4.1.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+  abobija/rc522: ^3.3.2

code/10.practice/common_modules/rc522/main/main.c

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+#include <esp_log.h>
+#include "rc522.h"
+#include "driver/rc522_spi.h"
+#include "rc522_picc.h"
+
+static const char *TAG = "rc522-basic-example";
+
+#define RC522_SPI_BUS_GPIO_MISO    (25)
+#define RC522_SPI_BUS_GPIO_MOSI    (23)
+#define RC522_SPI_BUS_GPIO_SCLK    (19)
+#define RC522_SPI_SCANNER_GPIO_SDA (22)
+#define RC522_SCANNER_GPIO_RST     (-1) // soft-reset
+
+static rc522_spi_config_t driver_config = {
+    .host_id = SPI3_HOST,
+    .bus_config = &(spi_bus_config_t){
+        .miso_io_num = RC522_SPI_BUS_GPIO_MISO,
+        .mosi_io_num = RC522_SPI_BUS_GPIO_MOSI,
+        .sclk_io_num = RC522_SPI_BUS_GPIO_SCLK,
+    },
+    .dev_config = {
+        .spics_io_num = RC522_SPI_SCANNER_GPIO_SDA,
+    },
+    .rst_io_num = RC522_SCANNER_GPIO_RST,
+};
+
+static rc522_driver_handle_t driver;
+static rc522_handle_t scanner;
+
+static void on_picc_state_changed(void *arg, esp_event_base_t base, int32_t event_id, void *data)
+{
+    rc522_picc_state_changed_event_t *event = (rc522_picc_state_changed_event_t *)data;
+    rc522_picc_t *picc = event->picc;
+
+    if (picc->state == RC522_PICC_STATE_ACTIVE) {
+        rc522_picc_print(picc);
+    }
+    else if (picc->state == RC522_PICC_STATE_IDLE && event->old_state >= RC522_PICC_STATE_ACTIVE) {
+        ESP_LOGI(TAG, "Card has been removed");
+    }
+}
+
+void app_main()
+{
+    rc522_spi_create(&driver_config, &driver);
+    rc522_driver_install(driver);
+
+    rc522_config_t scanner_config = {
+        .driver = driver,
+    };
+
+    rc522_create(&scanner_config, &scanner);
+    rc522_register_events(scanner, RC522_EVENT_PICC_STATE_CHANGED, on_picc_state_changed, NULL);
+    rc522_start(scanner);
+}