Use https:// instead of git:// for submodules

.gitmodules

 [submodule "apps/ArduinoBridge"]
 	path = apps/ArduinoBridge
-	url = git://github.com/mangOH/ArduinoBridge
+	url = https://github.com/mangOH/ArduinoBridge
 [submodule "apps/DataRouter"]
 	path = apps/DataRouter
-	url = git://github.com/mangOH/DataRouter
+	url = https://github.com/mangOH/DataRouter
 [submodule "apps/MqttClient"]
 	path = apps/MqttClient
-	url = git://github.com/mangOH/MqttClient
+	url = https://github.com/mangOH/MqttClient
 [submodule "apps/GpioExpander"]
 	path = apps/GpioExpander
-	url = git://github.com/mangOH/GpioExpander
+	url = https://github.com/mangOH/GpioExpander
 [submodule "apps/MuxControl"]
 	path = apps/MuxControl
-	url = git://github.com/mangOH/MuxControl
+	url = https://github.com/mangOH/MuxControl
 [submodule "apps/SocialService"]
 	path = apps/SocialService
-	url = git://github.com/mangOH/SocialService
+	url = https://github.com/mangOH/SocialService
 [submodule "samples/TemperatureMonitor"]
 	path = samples/TemperatureMonitor
-	url = git://github.com/mangOH/TemperatureMonitor
+	url = https://github.com/mangOH/TemperatureMonitor
 [submodule "samples/RelayControl"]
 	path = samples/RelayControl
-	url = git://github.com/mangOH/RelayControl
+	url = https://github.com/mangOH/RelayControl
 [submodule "samples/Demos"]
 	path = samples/Demos
-	url = git://github.com/mangOH/Demos
+	url = https://github.com/mangOH/Demos