sudo systemctl stop bluetoothhtml
sudo systemctl start bluetoothlinux
sudo rfkill unblock bluetoothubuntu
sudo systemctl status bluetoothwordpress
sudo bluetoothctlui
scan onorm
connect MAChtm
info MACblog
https://docs.ubuntu.com/core/en/stacks/bluetooth/bluez/docs/reference/gatt-servicesio
http://www.cnblogs.com/dearsj001/p/AzureIoTEdge4WindowsIoTCore.htmlform
https://sandervandevelde.wordpress.com/2017/07/19/introduction-to-the-iot-edge-sdk/
http://www.cnblogs.com/dearsj001/p/AzureIoTEdge4RaspberryPi.html
https://docs.microsoft.com/en-us/azure/iot-edge/quickstart-linux
https://azure.microsoft.com/en-us/resources/samples/iot-hub-c-intel-nuc-gateway-customized-module/