bird-lamp/app/ControllerPage.qml

import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Controls.Material 2.15

Page {
    id: root

    anchors.fill: parent

    property int lampState: 0

    onLampStateChanged: {
        console.log(lampState.toString(16))
        sendBufferTimer.start()
    }

    Timer {
        id: sendBufferTimer
        interval: 500
        running: false
        repeat: false
        onTriggered: {
            ble.sendData("s:" + lampState.toString(16))
        }
    }

    Column {
        anchors.centerIn: parent
        Switch {
            checked: app.remoteState >> 24 === 1
            onCheckedChanged: {
                let newState = lampState & 16777215
                lampState = newState | ((checked ? 1:0) << 24)
            }
        }

        Slider {
            id: red
            Material.accent: Material.Red
            from: 0
            to: 255
            value: app.remoteState >> 16 & 255
            onValueChanged: {
                let newColor = lampState & 16842751
                lampState = newColor | (value << 16)
            }
        }

        Slider {
            id: green
            Material.accent: Material.Green
            from: 0
            to: 255
            value: app.remoteState >> 8 & 255
            onValueChanged: {
                let newColor = lampState & 33489151
                lampState = newColor | (value << 8)
            }
        }

        Slider {
            id: blue
            Material.accent: Material.Blue
            from: 0
            to: 255
            value: app.remoteState & 255
            onValueChanged: {
                let newColor = lampState & 33554176
                lampState = newColor | (value)
            }
        }
    }
}