Initial STM32 project upload

Hardware/esp8266.c

@@ -506,8 +506,6 @@ uint8_t ESP8266_HttpGet(const char* path, char* response_buffer, uint16_t buffer
     return ESP8266_FAIL;
 }
 
-// ========== 兼容旧版本的函数 ==========
-
 /**
  * @brief 查询学生在指定时段是否已签到（服务器端查重）
  * @param student_id 学号
@@ -624,34 +622,3 @@ uint8_t ESP8266_DownloadTodayRecords(const char* slot_start, const char* slot_en
     DEBUG_PRINT("[ESP8266] Downloaded %d records: %s\r\n", count, student_ids);
     return count;
 }
-
-uint8_t ESP8266_ConnectTCPServer(const char* ip, const char* port)
-{
-    // 重定向到HTTP版本
-    return ESP8266_ConnectHTTPServer(ip, port);
-}
-
-uint8_t ESP8266_SendData(char* Data)
-{
-    char cmd_buffer[32];
-    uint16_t data_len = strlen(Data);
-
-    DEBUG_PRINT("[ESP8266] Sending %d bytes (legacy mode)\r\n", data_len);
-
-    sprintf(cmd_buffer, "AT+CIPSEND=%d", data_len);
-    ESP8266_SendCmd(cmd_buffer);
-
-    uint32_t start_time = Get_Time_ms();
-    Serial_ClearRxBuffer();
-
-    while(Get_Time_ms() - start_time < 1000) {
-        if (strstr(Serial_GetRxBuffer(), ">") != NULL) {
-            Serial_SendString(Data);
-            Delay_ms(50);
-            return ESP8266_SUCCESS;
-        }
-        Delay_ms(10);
-    }
-
-    return ESP8266_FAIL;
-}