添加了串口透传

.vscode/settings.json

@@ -6,6 +6,9 @@
         "stdio.h": "c",
         "ble_spp_client_demo.h": "c",
         "esp_gatt_common_api.h": "c",
-        "gpio.h": "c"
+        "gpio.h": "c",
+        "array": "c",
+        "string": "c",
+        "string_view": "c"
     }
 }

main/main.c

@@ -14,9 +14,41 @@
 
 #include "ble_spp_client_demo.h"
 #include "key.h"
+#include "driver/uart.h"
+
+#define buffer_size 1024
+static uint8_t rx_data_buffer[256];
+int length = 0;
 
 void motor_drive_hex_to_str(char *hex, int hex_len, char *str);
 
+void ble_uart_init(uart_port_t uart_num, int tx_io_num, int rx_io_num)
+{
+    uart_config_t uart_config = {
+        .baud_rate = 115200,
+        .data_bits = UART_DATA_8_BITS,
+        .parity = UART_PARITY_DISABLE,
+        .stop_bits = UART_STOP_BITS_1,
+        .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
+        .source_clk = UART_SCLK_APB,
+    };
+    ESP_ERROR_CHECK(uart_driver_install(uart_num, buffer_size * 2, 0, 0, NULL, 0));
+
+    ESP_ERROR_CHECK(uart_param_config(uart_num, &uart_config));
+
+    ESP_ERROR_CHECK(uart_set_pin(uart_num, tx_io_num, rx_io_num, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE));
+}
+
+void ble_receive(uart_port_t uart_num)
+{
+    ESP_ERROR_CHECK(uart_get_buffered_data_len(uart_num, (size_t *)&length));
+    if (length != 0)
+    {
+        length = uart_read_bytes(uart_num, rx_data_buffer, length, 100);
+        uart_write_bytes(UART_NUM_2, rx_data_buffer, length);
+    }
+}
+
 void app_main(void)
 {
     ble_init();
@@ -24,9 +56,12 @@ void app_main(void)
     key_init();
     key_ble_send_cmd_reg(ble_key_cb);
 
+    ble_uart_init(UART_NUM_2, 18, 23);
+
     while (true)
     {
         key_schedule();
+        ble_receive(UART_NUM_2);
     }
 }