diff --git a/3-5  GPIO_光敏传感器/Hardware/LED.h b/3-5  GPIO_光敏传感器/Hardware/LED.h
new file mode 100644
index 0000000..2d90448
--- /dev/null
+++ b/3-5  GPIO_光敏传感器/Hardware/LED.h	
@@ -0,0 +1,14 @@
+#ifndef __LED_H
+#define __LED_H
+
+enum V_opt{
+	high,
+	low
+};
+
+void LED_Init(void);//初始化
+void GPIOA_LED(uint16_t GPIO_Pin_x,enum V_opt opt);//点灯
+
+void GPIOA_LED_Turn(uint16_t GPIO_Pin_x);//实现翻转电平
+
+#endif
diff --git a/3-5  GPIO_光敏传感器/Hardware/Lightsensor.c b/3-5  GPIO_光敏传感器/Hardware/Lightsensor.c
new file mode 100644
index 0000000..262fef6
--- /dev/null
+++ b/3-5  GPIO_光敏传感器/Hardware/Lightsensor.c	
@@ -0,0 +1,34 @@
+#include "stm32f10x.h"                  // Device header
+#include "stdio.h"
+
+void LightSensor_Init(void)
+{
+	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
+	
+	GPIO_InitTypeDef GPIO_InitStruct;  //初始化GPIO，定义GPIO结构体，以下设置其参数
+	GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;//上拉输入模式；GPIO_Mode_Out_OD 开漏模式，低电平驱动，高电平时为高阻态;GPIO_Mode_Out_PP 推挽模式，高低电平都有驱动
+	GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13;
+	GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
+	GPIO_Init(GPIOB,&GPIO_InitStruct);
+	
+	GPIO_SetBits(GPIOB,GPIO_Pin_13);//初始化LightSensor
+
+}
+
+
+/*!< Pin x selected ON  or OFF
+	parameter opt is high or low;表示高低电平
+*/
+
+enum V_opt{//高低电压
+	high,
+	low
+};
+
+/* 光敏传感器  返回函数 */
+uint8_t GPIOB_LightSensor_Get(uint16_t GPIO_Pin_x)
+{
+	return GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_x);
+}
+
+
diff --git a/3-5  GPIO_光敏传感器/Hardware/Lightsensor.h b/3-5  GPIO_光敏传感器/Hardware/Lightsensor.h
new file mode 100644
index 0000000..bcb1e1a
--- /dev/null
+++ b/3-5  GPIO_光敏传感器/Hardware/Lightsensor.h	
@@ -0,0 +1,15 @@
+#ifndef __LIGHTSENSOR_R
+#define __LIGHTSENSOR_R
+
+
+
+void LightSensor_Init(void);
+
+/*!< Pin x selected ON  or OFF
+	parameter opt is high or low;表示高低电平
+*/
+
+/* 光敏传感器  返回函数 */
+uint8_t GPIOB_LightSensor_Get(uint16_t GPIO_Pin_x);
+
+#endif