diff --git a/network-comm/nic/ethernet/CH395/example_network_eth_lan_ch395.py b/network-comm/nic/ethernet/CH395/example_network_eth_lan_ch395.py
new file mode 100644
index 0000000..27c25e7
--- /dev/null
+++ b/network-comm/nic/ethernet/CH395/example_network_eth_lan_ch395.py
@@ -0,0 +1,55 @@
+# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
+#  
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#  
+#     http://www.apache.org/licenses/LICENSE-2.0
+#  
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import dataCall
+import ethernet
+
+nic = None
+
+def netStatusCallback(args):
+    pdp = args[0]
+    datacallState = args[1]
+    if datacallState == 0:
+        print('modem network {} disconnected.'.format(pdp))
+    elif datacallState == 1:
+        print('modem network {} connected.'.format(pdp))
+        if nic != None:
+            lte=dataCall.getInfo(1, 0)
+            print(lte)
+            nic.set_default_NIC(lte[2][2])
+
+def eth_init():
+    lte=dataCall.getInfo(1, 0)
+    print('modem net config: {}'.format(lte))
+    workMode=1
+    global nic
+    print('eth init start')
+    nic = ethernet.CH395(b'\x12\x34\x56\x78\x9a\xbc','192.168.1.1','','',-1,-1,-1,-1, workMode)
+    if lte != -1 and lte[2][0] == 1:
+        print('eth set default nic {}'.format(lte[2][2]))
+        nic.set_default_NIC(lte[2][2])
+    nic.set_dns('8.8.8.8', '114.114.114.114')
+    print('eth net config: {}'.format(nic.ipconfig()))
+    nic.set_up()
+    print('eth startup success')
+
+dataCall.setCallback(netStatusCallback)
+eth_init()
+
+
+
+
+    
+
+
diff --git a/network-comm/nic/ethernet/CH395/example_network_eth_wan_ch395.py b/network-comm/nic/ethernet/CH395/example_network_eth_wan_ch395.py
new file mode 100644
index 0000000..76082cd
--- /dev/null
+++ b/network-comm/nic/ethernet/CH395/example_network_eth_wan_ch395.py
@@ -0,0 +1,45 @@
+# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
+#  
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#  
+#     http://www.apache.org/licenses/LICENSE-2.0
+#  
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import ethernet
+
+nic = None
+
+def eth_init():
+    print('eth init start')
+    nic = ethernet.CH395(b'\x12\x34\x56\x78\x9a\xbc','','','',-1,-1,-1,-1)
+    nic_info = nic.ipconfig()
+    print('nic net config before: {}'.format(nic_info))
+    # dhcp ip config
+    nic.dhcp()
+    # static ip config 
+    nic.set_addr('192.168.1.99', '255.255.255.0','192.168.1.1')
+    nic.set_dns('8.8.8.8', '114.114.114.114')
+    nic_info = nic.ipconfig()
+    print('nic net config after: {}'.format(nic_info))
+    nic.set_default_NIC(nic_info[1][1])
+    nic.set_up()
+    print('eth startup success')
+
+eth_init()
+
+# now, you can connect server by ethernet interface
+
+
+
+
+
+    
+
+
diff --git a/network-comm/nic/ethernet/DM9051/example_network_eth_lan_dm9051.py b/network-comm/nic/ethernet/DM9051/example_network_eth_lan_dm9051.py
new file mode 100644
index 0000000..bcf193a
--- /dev/null
+++ b/network-comm/nic/ethernet/DM9051/example_network_eth_lan_dm9051.py
@@ -0,0 +1,55 @@
+# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
+#  
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#  
+#     http://www.apache.org/licenses/LICENSE-2.0
+#  
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import dataCall
+import ethernet
+
+nic = None
+
+def netStatusCallback(args):
+    pdp = args[0]
+    datacallState = args[1]
+    if datacallState == 0:
+        print('modem network {} disconnected.'.format(pdp))
+    elif datacallState == 1:
+        print('modem network {} connected.'.format(pdp))
+        if nic != None:
+            lte=dataCall.getInfo(1, 0)
+            print(lte)
+            nic.set_default_NIC(lte[2][2])
+
+def eth_init():
+    lte=dataCall.getInfo(1, 0)
+    print('modem net config: {}'.format(lte))
+    workMode=1
+    global nic
+    print('eth init start')
+    nic = ethernet.DM9051(b'\x12\x34\x56\x78\x9a\xbc','192.168.1.1','','',-1,-1,-1,-1, workMode)
+    if lte != -1 and lte[2][0] == 1:
+        print('eth set default nic {}'.format(lte[2][2]))
+        nic.set_default_NIC(lte[2][2])
+    nic.set_dns('8.8.8.8', '114.114.114.114')
+    print('eth net config: {}'.format(nic.ipconfig()))
+    nic.set_up()
+    print('eth startup success')
+
+dataCall.setCallback(netStatusCallback)
+eth_init()
+
+
+
+
+    
+
+
diff --git a/network-comm/nic/ethernet/DM9051/example_network_eth_wan_dm9051.py b/network-comm/nic/ethernet/DM9051/example_network_eth_wan_dm9051.py
new file mode 100644
index 0000000..5e44d29
--- /dev/null
+++ b/network-comm/nic/ethernet/DM9051/example_network_eth_wan_dm9051.py
@@ -0,0 +1,45 @@
+# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
+#  
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#  
+#     http://www.apache.org/licenses/LICENSE-2.0
+#  
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import ethernet
+
+nic = None
+
+def eth_init():
+    print('eth init start')
+    nic = ethernet.DM9051(b'\x12\x34\x56\x78\x9a\xbc','','','',-1,-1,-1,-1)
+    nic_info = nic.ipconfig()
+    print('nic net config before: {}'.format(nic_info))
+    # dhcp ip config
+    nic.dhcp()
+    # static ip config 
+    nic.set_addr('192.168.1.99', '255.255.255.0','192.168.1.1')
+    nic.set_dns('8.8.8.8', '114.114.114.114')
+    nic_info = nic.ipconfig()
+    print('nic net config after: {}'.format(nic_info))
+    nic.set_default_NIC(nic_info[1][1])
+    nic.set_up()
+    print('eth startup success')
+
+eth_init()
+
+# now, you can connect server by ethernet interface
+
+
+
+
+
+    
+
+
diff --git a/network-comm/nic/ethernet/example_network_eth_lan.py b/network-comm/nic/ethernet/W5500/example_network_eth_lan_w5500.py
similarity index 100%
rename from network-comm/nic/ethernet/example_network_eth_lan.py
rename to network-comm/nic/ethernet/W5500/example_network_eth_lan_w5500.py
diff --git a/network-comm/nic/ethernet/example_network_eth_wan.py b/network-comm/nic/ethernet/W5500/example_network_eth_wan_w5500.py
similarity index 100%
rename from network-comm/nic/ethernet/example_network_eth_wan.py
rename to network-comm/nic/ethernet/W5500/example_network_eth_wan_w5500.py
diff --git a/network-comm/nic/ethernet/YT8512/example_network_eth_lan_yt8512h.py b/network-comm/nic/ethernet/YT8512/example_network_eth_lan_yt8512h.py
new file mode 100644
index 0000000..aba6a9b
--- /dev/null
+++ b/network-comm/nic/ethernet/YT8512/example_network_eth_lan_yt8512h.py
@@ -0,0 +1,54 @@
+# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
+#  
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#  
+#     http://www.apache.org/licenses/LICENSE-2.0
+#  
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import dataCall
+import ethernet
+
+nic = None
+
+def netStatusCallback(args):
+    pdp = args[0]
+    datacallState = args[1]
+    if datacallState == 0:
+        print('modem network {} disconnected.'.format(pdp))
+    elif datacallState == 1:
+        print('modem network {} connected.'.format(pdp))
+        if nic != None:
+            lte=dataCall.getInfo(1, 0)
+            print(lte)
+            nic.set_default_NIC(lte[2][2])
+
+def eth_init():
+    lte=dataCall.getInfo(1, 0)
+    print('modem net config: {}'.format(lte))
+    global nic
+    print('eth init start')
+    nic = ethernet.YT8512H(b'\x12\x34\x56\x78\x9a\xbc','192.168.1.1','','')
+    if lte != -1 and lte[2][0] == 1:
+        print('eth set default nic {}'.format(lte[2][2]))
+        nic.set_default_NIC(lte[2][2])
+    nic.set_dns('8.8.8.8', '114.114.114.114')
+    print('eth net config: {}'.format(nic.ipconfig()))
+    nic.set_up()
+    print('eth startup success')
+
+dataCall.setCallback(netStatusCallback)
+eth_init()
+
+
+
+
+    
+
+
diff --git a/network-comm/nic/ethernet/YT8512/example_network_eth_wan_yt8512h.py b/network-comm/nic/ethernet/YT8512/example_network_eth_wan_yt8512h.py
new file mode 100644
index 0000000..8a70b7a
--- /dev/null
+++ b/network-comm/nic/ethernet/YT8512/example_network_eth_wan_yt8512h.py
@@ -0,0 +1,45 @@
+# Copyright (c) Quectel Wireless Solution, Co., Ltd.All Rights Reserved.
+#  
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#  
+#     http://www.apache.org/licenses/LICENSE-2.0
+#  
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import ethernet
+
+nic = None
+
+def eth_init():
+    print('eth init start')
+    nic = ethernet.YT8512H(b'\x12\x34\x56\x78\x9a\xbc','','','')
+    nic_info = nic.ipconfig()
+    print('nic net config before: {}'.format(nic_info))
+    # dhcp ip config
+    nic.dhcp()
+    # static ip config 
+    nic.set_addr('192.168.1.99', '255.255.255.0','192.168.1.1')
+    nic.set_dns('8.8.8.8', '114.114.114.114')
+    nic_info = nic.ipconfig()
+    print('nic net config after: {}'.format(nic_info))
+    nic.set_default_NIC(nic_info[1][1])
+    nic.set_up()
+    print('eth startup success')
+
+eth_init()
+
+# now, you can connect server by ethernet interface
+
+
+
+
+
+    
+
+
diff --git a/network-comm/nic/usbnet/example_network_usbnet_android.py b/network-comm/nic/usbnet/example_network_usbnet_android.py
new file mode 100644
index 0000000..b6b2e51
--- /dev/null
+++ b/network-comm/nic/usbnet/example_network_usbnet_android.py
@@ -0,0 +1,18 @@
+from misc import USBNET,Power
+import utime
+import dataCall
+
+
+if USBNET.get_worktype() != USBNET.Type_ECM:
+    USBNET.set_worktype(USBNET.Type_ECM)
+    Power.powerRestart()
+while True:
+    info = dataCall.getInfo(1, 0)
+    if info[2][2] != '0.0.0.0':
+        print('data:',info)
+        break
+    print('Wait for data calling')
+    utime.sleep(2)
+
+USBNET.open()
+print('USBNET open successed.')
diff --git a/network-comm/nic/usbnet/example_network_usbnet_ios.py b/network-comm/nic/usbnet/example_network_usbnet_ios.py
new file mode 100644
index 0000000..b6b2e51
--- /dev/null
+++ b/network-comm/nic/usbnet/example_network_usbnet_ios.py
@@ -0,0 +1,18 @@
+from misc import USBNET,Power
+import utime
+import dataCall
+
+
+if USBNET.get_worktype() != USBNET.Type_ECM:
+    USBNET.set_worktype(USBNET.Type_ECM)
+    Power.powerRestart()
+while True:
+    info = dataCall.getInfo(1, 0)
+    if info[2][2] != '0.0.0.0':
+        print('data:',info)
+        break
+    print('Wait for data calling')
+    utime.sleep(2)
+
+USBNET.open()
+print('USBNET open successed.')
diff --git a/network-comm/nic/usbnet/example_network_usbnet_linux.py b/network-comm/nic/usbnet/example_network_usbnet_linux.py
new file mode 100644
index 0000000..b6b2e51
--- /dev/null
+++ b/network-comm/nic/usbnet/example_network_usbnet_linux.py
@@ -0,0 +1,18 @@
+from misc import USBNET,Power
+import utime
+import dataCall
+
+
+if USBNET.get_worktype() != USBNET.Type_ECM:
+    USBNET.set_worktype(USBNET.Type_ECM)
+    Power.powerRestart()
+while True:
+    info = dataCall.getInfo(1, 0)
+    if info[2][2] != '0.0.0.0':
+        print('data:',info)
+        break
+    print('Wait for data calling')
+    utime.sleep(2)
+
+USBNET.open()
+print('USBNET open successed.')
diff --git a/network-comm/nic/usbnet/example_network_usbnet_pc.py b/network-comm/nic/usbnet/example_network_usbnet_pc.py
new file mode 100644
index 0000000..b8373af
--- /dev/null
+++ b/network-comm/nic/usbnet/example_network_usbnet_pc.py
@@ -0,0 +1,18 @@
+from misc import USBNET,Power
+import utime
+import dataCall
+
+
+if USBNET.get_worktype() != USBNET.Type_RNDIS:
+    USBNET.set_worktype(USBNET.Type_RNDIS)
+    Power.powerRestart()
+while True:
+    info = dataCall.getInfo(1, 0)
+    if info[2][2] != '0.0.0.0':
+        print('data:',info)
+        break
+    print('Wait for data calling')
+    utime.sleep(2)
+
+USBNET.open()
+print('USBNET open successed.')