ble-server/config.json

{
	"uuid":{
		"main": "930da73d-1b80-4d3e-a8b6-d9b4e7e771bd",
		"service":{
			"id":"dd535b71-8f05-4e30-beb0-6fa7ea3dfc3e",
			"func":{
				"data":"00000001-8f05-4e30-beb0-6fa7ea3dfc3e"
			}
		}
	},
	"printer": {
		"serial": "/dev/ttyUSB0",
		"cutFeed": 8
	}
}