diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index 6d77c9a..7f77223 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -31,10 +31,12 @@ list(APPEND srcs "utils/sb_aes.c")
 list(APPEND srcs "drivers/sertrf/sertrf.c")
 list(APPEND srcs "drivers/sertrf/device.c")
 list(APPEND srcs "drivers/sertrf/key.c")
+list(APPEND srcs "drivers/sertrf/ota_u.c")
 list(APPEND srcs "drivers/sertrf/protocol/MSP.c")
 list(APPEND srcs "drivers/sertrf/protocol/p_protocol.c")
 list(APPEND srcs "drivers/sertrf/protocol/mavlink_control.c")
 
+
 list(APPEND srcs "drivers/led_strip/led_strip.c")
 list(APPEND srcs "drivers/led_strip/led_strip_encoder.c")
 
diff --git a/app/drivers/sertrf/ota_u.c b/app/drivers/sertrf/ota_u.c
new file mode 100644
index 0000000..4d76b26
--- /dev/null
+++ b/app/drivers/sertrf/ota_u.c
@@ -0,0 +1,79 @@
+#include "ota_u.h"
+
+void switch_to_ota(const char *target_label)
+{
+    // 通过标签获取分区
+    const esp_partition_t *target_partition =
+        esp_partition_find_first(ESP_PARTITION_TYPE_APP,
+                                 ESP_PARTITION_SUBTYPE_ANY,
+                                 target_label);
+    if (!target_partition) {
+        SYS_LOG_ERR("Partition '%s' not found!", target_label);
+        return;
+    }
+
+    SYS_LOG_INF("Switching to %s at 0x%x", target_partition->label, target_partition->address);
+
+    // 设置下次启动分区
+    esp_err_t err = esp_ota_set_boot_partition(target_partition);
+    if (err != ESP_OK) {
+        SYS_LOG_ERR("Failed to set boot partition: %s", esp_err_to_name(err));
+        return;
+    }
+
+    SYS_LOG_INF( "Switch successful, rebooting...");
+    esp_restart();
+}
+// 获取ota信息
+void get_partition_status(ota_u_t* otau)
+{
+    // 获取当前运行分区
+    otau->running = esp_ota_get_running_partition();
+    if (!otau->running) {
+        SYS_LOG_ERR("Failed to get running partition");
+        return;
+    }
+    //赋值ota分区
+    if(strcmp(otau->running->label, OTA_TAG_0) == 0){
+        otau->update = esp_partition_find_first(ESP_PARTITION_TYPE_APP,
+                        ESP_PARTITION_SUBTYPE_ANY, OTA_TAG_1);
+    }else{
+        otau->update = esp_partition_find_first(ESP_PARTITION_TYPE_APP,
+                        ESP_PARTITION_SUBTYPE_ANY, OTA_TAG_0);
+    }
+    SYS_LOG_INF("Running partition: %s at 0x%x", otau->running->label, otau->running->address);
+}
+void otau_init(ota_u_t* otau)
+{
+    
+    if (esp_ota_begin(otau->update, OTA_SIZE_UNKNOWN, &otau->ota_handle) != ESP_OK) {
+        SYS_LOG_ERR("esp_ota_begin failed!");
+        return;
+    }
+    SYS_LOG_INF("Starting OTA update...");
+}
+uint8_t otau_write(ota_u_t* otau, void* data, uint32_t size)
+{
+    esp_err_t err = esp_ota_write(otau->ota_handle, data, size);
+    if (err != ESP_OK) {
+        SYS_LOG_ERR( "esp_ota_write failed! (%s)", esp_err_to_name(err));
+        esp_ota_abort(otau->ota_handle);
+        return 1;
+    }
+    otau->total_size += size;
+    SYS_LOG_INF( "Received: %d bytes, Total: %d bytes", size, otau->total_size);
+    return 0;
+}
+uint8_t otau_end(ota_u_t* otau)
+{
+    if (esp_ota_end(otau->ota_handle) != ESP_OK) {
+        SYS_LOG_ERR("esp_ota_end failed!");
+        return 1;
+    }
+    if (esp_ota_set_boot_partition(otau->update) != ESP_OK) {
+        SYS_LOG_ERR("esp_ota_set_boot_partition failed!");
+        return 1;
+    }
+    SYS_LOG_INF("OTA update successful! Rebooting...");
+    return 0;
+}
\ No newline at end of file
diff --git a/app/drivers/sertrf/ota_u.h b/app/drivers/sertrf/ota_u.h
new file mode 100644
index 0000000..9c9cfd6
--- /dev/null
+++ b/app/drivers/sertrf/ota_u.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include "esp_ota_ops.h"
+#include "esp_system.h"
+#include "esp_log.h"
+#include "sys_log.h"
+
+#define OTA_TAG_0 "ota_0"
+#define OTA_TAG_1 "ota_1"
+
+typedef struct 
+{
+    const esp_partition_t *running;
+    const esp_partition_t *update;
+    esp_ota_handle_t ota_handle;
+    int total_size;
+}ota_u_t;
+
+/**
+ * @brief OTA初始化
+ * 
+ * @param otau
+ */
+void otau_init(ota_u_t* otau);
+/**
+ * @brief OTA写入
+ * 
+ * @param otau 
+ * @param data 
+ * @param size 
+ * @return uint8_t
+ */
+uint8_t otau_write(ota_u_t* otau, void* data, uint32_t size);
+/**
+ * @brief OTA结束
+ * 
+ * @param otau 
+ * @return uint8_t
+ */
+uint8_t otau_end(ota_u_t* otau);
diff --git a/app/drivers/sertrf/sertrf.h b/app/drivers/sertrf/sertrf.h
index 6c2d71f..7266881 100644
--- a/app/drivers/sertrf/sertrf.h
+++ b/app/drivers/sertrf/sertrf.h
@@ -5,12 +5,15 @@
 #include "key.h"
 #include "protocol/p_protocol.h"
 #include "protocol/kuyi_protl.h"
+#include "ota_u.h"
 typedef struct 
 {
     device_t device;
     os_thread_t embedded_thread;
     os_thread_t pc_thread;
     os_thread_t task_thread;
+    
+    ota_u_t otau;
 }sertrf_t;
 
 /**
@@ -37,6 +40,11 @@ void sertrf_status(void);
  * @brief embedded thread
 */
 void embedded_thread(void* arg);
+
+/**
+ * @brief pc thread
+*/
+void pc_thread(void* arg);
 /**
  * @brief task thread
  */