<MainScreen>:
    on_pre_enter: root.reset()
    name: "main"
    MDFloatLayout:
        MDGridLayout:
            cols: 1
            pos_hint: {'x': 0, 'y': 0.4}
            MDLabel:
                text: "READOUT"
                font_size: 40
                halign: 'center'
                valign: 'center'
                pos_hint: {'center_x': 0, 'center_y': 0}
                bold: True

        MDGridLayout:
            cols:4
            size_hint: 0.8, 0.3
            pos_hint: {"x":0.1, "y":0.4}
            MDLabel:
                text: "Sensor 1: "
                font_size: 20
            MDLabel:
                id: sensor1
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
            MDLabel:
                text: "Sensor 2: "
                font_size: 20
            MDLabel:
                id: sensor2
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
            MDLabel:
                text: "Sensor 3: "
                font_size: 20
            MDLabel:
                id: sensor3
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
            MDLabel:
                text: "Sensor 4: "
                font_size: 20
            MDLabel:
                id: sensor4
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
        MDFillRoundFlatButton:
            text: "Connect"
            size_hint: 0.15, 0.09
            pos_hint: {"x": 0.03, "y": 0.05}
            on_release:
                root.start()

        MDFillRoundFlatButton:
            text: "Disconnect"
            size_hint: 0.15, 0.09
            pos_hint: {"x": 0.2, "y": 0.05}
            on_release:
                root.end()

        MDFillRoundFlatButton:
            text: "Back"
            size_hint: 0.15, 0.09
            pos_hint: {"right": 0.95, "y":0.05}
            md_bg_color: app.theme_cls.primary_dark
            on_release:
                root.end()
                app.root.current = "home"
                root.manager.transition.direction = "left"

        MDGridLayout:
            cols: 2
            size_hint: 0.15, 0.1
            pos_hint: {"x":0.1, "y":0.15}
            MDLabel:
                text: "Fast Mode"
                valign: "center"
            MDSwitch:
                id: mode_selector
                on_active: root.switch_mode()
                icon_active: "check"

        MDFillRoundFlatButton:
            text: "Configuration"
            size_hint: 0.1, 0.07
            pos_hint: {"x":0.45, "y":0.06}
            md_bg_color: app.theme_cls.accent_dark
            on_release:
                root.end()
                app.root.current = "program"
                root.manager.transition.direction = "down"

        MDGridLayout:
            size_hint: 0.2, None
            spacing: 0
            padding: 0
            cols: 1
            pos_hint: {'right': 0.95, 'top': 0.95}
            MDLabel:
                id: status
                text: "Status will appear here"
                font_size: 10
                halign: 'right'

        MDGridLayout:
            size_hint: None, None
            spacing: 0
            padding: 0
            cols: 1
            pos_hint: {'right': 0.95, 'top': 0.925}
            MDLabel:
                id: port
                text: "Port: Not connected"
                font_size: 10
                halign: 'right'