var options1 = {
    type: 'doughnut',
    data: {
        datasets: [
            {
                label: 'speedTCP',
                data: [50,50],
                backgroundColor: [
                    'rgba(30, 139, 195, 1)',
                    'rgba(191, 191, 191, 1)'
                ],
                borderColor: [
                    'rgba(255, 255, 255 ,1)',
                    'rgba(255, 255, 255 ,1)'
                ],
                borderWidth: 2
            },
            {
                label: 'speedSERIAl',
                data: [50, 50],
                backgroundColor: [
                    'rgba(214, 69, 65, 1)',
                    'rgba(191, 191, 191, 1)'
                ],
                borderColor: [
                    'rgba(255, 255, 255 ,1)',
                    'rgba(255, 255, 255 ,1)'
                ],
                borderWidth: 2
            }
        ]
    },
    options: {
        rotation: 1 * Math.PI,
        circumference: 1 * Math.PI,
        legend: {
            display: false,
            enabled: false
        },
        tooltips: {
            enabled: false,
            display: false
        },
        cutoutPercentage: 50
    }
}

var ctx1 = document.getElementById('speedometer').getContext('2d');
var mySpeedometer = new Chart(ctx1, options1);

function addSpeedSerial(speedSERIAL){
    var speedSERIALkmh = (speedSERIAL * 3.6)
    var speedSERIALpercent = (speedSERIALkmh/250)*100
    console.log("SERIAL speed ms", speedSERIAL)
    console.log("SERIAL speed kmh", speedSERIALkmh)
    console.log("SERIAL speed percent", speedSERIALpercent)
    mySpeedometer.data.datasets[1].data = [speedSERIALpercent, 100-speedSERIALpercent];
    document.getElementById("speedSERIAL").innerHTML = "Speed Ublox (km/h): " + speedSERIALkmh.toFixed(1)
    mySpeedometer.update();
}

function addSpeedTcp(speedTCP){
    var speedTCPkmh = (speedTCP * 3.6)
    var speedTCPpercent = (speedTCPkmh/250)*100;
    console.log("TCP speed ms", speedSERIAL)
    console.log("TCP speed kmh", serialSpeedKmh)
    console.log("TCP speed percent", speedSERIALpercent)
    mySpeedometer.data.datasets[0].data = [speedTCPpercent, 100-speedTCPpercent];
    document.getElementById("speedTCP").innerHTML = "Speed Smartphone (km/h): " + speedTCPkmh.toFixed(1)
    mySpeedometer.update();
}