diff --git a/Power_Pico/BSP/BEEP/beep.c b/Power_Pico/BSP/BEEP/beep.c
new file mode 100644
index 0000000..8b647bd
--- /dev/null
+++ b/Power_Pico/BSP/BEEP/beep.c
@@ -0,0 +1,10 @@
+#include "beep.h"
+#include "tim.h"
+
+void beep_open(void) {
+    HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_4); // 启动PWM通道4用于蜂鸣器
+}
+
+void beep_close(void) {
+    HAL_TIM_PWM_Stop(&htim4, TIM_CHANNEL_4); // 停止PWM通道4
+}
diff --git a/Power_Pico/BSP/BEEP/beep.h b/Power_Pico/BSP/BEEP/beep.h
new file mode 100644
index 0000000..67a4a4e
--- /dev/null
+++ b/Power_Pico/BSP/BEEP/beep.h
@@ -0,0 +1,18 @@
+#ifndef __BEEP_H__
+#define __BEEP_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "main.h"
+
+void beep_open(void);
+void beep_close(void);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+