diff --git a/applications/sensor.c b/applications/sensor.c
index c14c5e5..6cbfd88 100644
--- a/applications/sensor.c
+++ b/applications/sensor.c
@@ -123,7 +123,7 @@ static void sensor_thread(void *parameter)
     while (1)
     {
         ADC_air = ADC_Read();              // 空气质量传感器数值    0-4095    表示从差到优秀
-        // ADC_PM25 = Get_PM25_Average_Data(); // PM2.5传感器数值0-500  表示从优秀到查差
+        ADC_PM25 = Get_PM25_Average_Data(); // PM2.5传感器数值0-500  表示从优秀到查差
         ADC_pressure = ADC2_Read();             // 压力传感器数值     0-4095    表示从差到优秀
         LOG5("ADC_air:%f,ADC_PM25:%f,ADC_pressure:%f", ADC_air, ADC_PM25, ADC_pressure);
         rt_thread_mdelay(1000);