57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
#include <esp_log.h>
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#include "rc522.h"
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#include "driver/rc522_i2c.h"
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#include "rc522_picc.h"
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static const char *TAG = "rc522-basic-i2c-example";
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#define RC522_I2C_ADDRESS (0x28)
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#define RC522_I2C_GPIO_SDA (18)
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#define RC522_I2C_GPIO_SCL (21)
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#define RC522_SCANNER_GPIO_RST (-1) // soft-reset
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static rc522_i2c_config_t driver_config = {
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.bus_config = &(i2c_master_bus_config_t){
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.i2c_port = I2C_NUM_0,
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.sda_io_num = RC522_I2C_GPIO_SDA,
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.scl_io_num = RC522_I2C_GPIO_SCL,
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.glitch_ignore_cnt = 7,
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.flags.enable_internal_pullup = true,
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.clk_source = I2C_CLK_SRC_DEFAULT,
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},
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.dev_config = {
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.dev_addr_length = I2C_ADDR_BIT_LEN_7,
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.device_address = RC522_I2C_ADDRESS,
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.scl_speed_hz = 100000,
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},
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.rst_io_num = RC522_SCANNER_GPIO_RST,
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};
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static rc522_driver_handle_t driver;
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static rc522_handle_t scanner;
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static void on_picc_state_changed(void *arg, esp_event_base_t base, int32_t event_id, void *data)
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{
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rc522_picc_state_changed_event_t *event = (rc522_picc_state_changed_event_t *)data;
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if (event->picc->state != RC522_PICC_STATE_ACTIVE) {
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return;
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}
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rc522_picc_print(event->picc);
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}
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void app_main()
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{
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rc522_i2c_create(&driver_config, &driver);
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rc522_driver_install(driver);
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rc522_config_t scanner_config = {
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.driver = driver,
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};
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rc522_create(&scanner_config, &scanner);
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rc522_register_events(scanner, RC522_EVENT_PICC_STATE_CHANGED, on_picc_state_changed, NULL);
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rc522_start(scanner);
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}
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