更新C5的wifi配网错误提示

boards/default_src/micropython/origin/build/lib/mixiot.py

@@ -11,8 +11,10 @@ WILL_TOPIC = '9d634e1a156dc0c1611eb4c3cff57276'
 def wlan_connect(ssid='MYSSID', password='MYPASS', timeout=10):
     import network
     wlan = network.WLAN(network.STA_IF)
-    if not wlan.active() or not wlan.isconnected():
+    if not wlan.active():
         wlan.active(True)
+        time.sleep(0.5)
+    if not wlan.isconnected():
         print('connecting to:', ssid, end ="")
         try:
             wlan.connect(ssid, password)
@@ -26,7 +28,11 @@ def wlan_connect(ssid='MYSSID', password='MYPASS', timeout=10):
             if _num > timeout:
                 wlan.active(False)
                 print('')
-                raise RuntimeError("WiFi connection timeout, Please check only 2.4G supported name and password") 
+                import os
+                if 'c5' in  os.uname().machine.lower():
+                    raise RuntimeError("WiFi connection timeout. Please check the SSID and password") 
+                else:
+                    raise RuntimeError("WiFi connection timeout, Please check the SSID and password (only 2.4GHz networks are supported)") 
     print('\nnetwork config:', wlan.ifconfig())
     return wlan