diff --git a/examples/vision/streaming/uvc_server.py b/examples/vision/streaming/uvc_server.py
new file mode 100644
index 00000000..42e24f55
--- /dev/null
+++ b/examples/vision/streaming/uvc_server.py
@@ -0,0 +1,21 @@
+from maix import camera, display, app, time, uvc
+import time
+import atexit
+
+cam = camera.Camera(640, 360, fps=60)   # Manually set resolution
+                                # | 手动设置分辨率
+# disp = display.Display()        # MaixCAM default is 522x368
+                                # | MaixCAM 默认是 522x368
+def fill_mjpg_img_cb(buf, size):
+    img = cam.read()
+    return uvc.helper_fill_mjpg_image(buf, size, img)
+
+uvcs = uvc.UvcServer(fill_mjpg_img_cb)
+
+uvcs.run()
+
+while not app.need_exit():
+   time.sleep(1)
+
+# fixme: actually can't reach here, :(
+# uvcs.stop()
diff --git a/examples/vision/streaming/uvc_stream.py b/examples/vision/streaming/uvc_stream.py
index b0c1d42b..16b6e0ca 100644
--- a/examples/vision/streaming/uvc_stream.py
+++ b/examples/vision/streaming/uvc_stream.py
@@ -1,13 +1,11 @@
 from maix import camera, display, app, time, uvc
 
-cam = camera.Camera(640, 360)   # Manually set resolution
+cam = camera.Camera(640, 360, fps=60)   # Manually set resolution
                                 # | 手动设置分辨率
 # disp = display.Display()        # MaixCAM default is 522x368
                                 # | MaixCAM 默认是 522x368
 
-uvcs = uvc.UvcStreamer(0)
-# uvcs.use_mjpg(1) for mjpg or yuyv default without it
-# uvcs.use_mjpg(1) 是为了刷 mjpg 通道，不添加这一行默认是 yuyv 通道
+uvcs = uvc.UvcStreamer()
 uvcs.use_mjpg(1)
 
 while not app.need_exit():