added default values for `lat` and `lon`
added default values for `lat` and `lon`

MichMich/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,MichMich/MagicMirror