Speedometer Example

Internet speed meter, gauge meter

This tailwind example is contributed by Brandon D, on 09-Aug-2022. Component is made with Tailwind v3.4. It is responsive.

Widget

Author Brandon D

Tailwind v3.4 15.3k 8

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<div class="min-h-screen items-center flex justify-center p-6">
    <div class="bg-white mx-auto max-w-sm shadow-lg rounded-lg overflow-hidden border-r">
        <div class="block px-4 py-2 mb-6 leading-normal bg-grey-lighter flex flex-no-shrink">
            <h3 class="pl-2 text-left m-auto align-middle text-grey-darkest w-full">Internet Speedometer</h3>
            <button onClick="refreshSpeedOMeter();" class="bg-grey-light float-right hover:bg-grey text-grey-darkest font-bold py-3 px-3 rounded-full inline-flex items-center">
                <svg class="fill-current w-6 h-6 flex-no-shrink" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M14.66 15.66A8 8 0 1 1 17 10h-2a6 6 0 1 0-1.76 4.24l1.42 1.42zM12 10h8l-4 4-4-4z"/></svg>
            </button>
        </div>

<div id="counter" class="text-grey-darkest text-center text-base font-semibold pt-4 pb-0">0.0 Mbps</div>
            </div>
        </div>
        <div class="px-6 pt-0 pb-4 text-center">
            <span class="inline-block bg-grey-lighter rounded-full px-3 py-1 text-sm font-semibold text-grey-darker mr-2" id="effectiveType">-</span>
            <span class="inline-block bg-grey-lighter rounded-full px-3 py-1 text-sm font-semibold text-grey-darker mr-2" id="rtt">rtt</span>
        </div>
        <div class="py-4 px-8 text-sm font-medium text-grey-darker bg-grey-lighter leading-normal">
            <p>
                Internet speed is calculated by
                <b>Chrome Network Information API</b>. click
                <a href="https://developer.mozilla.org/en-US/docs/Web/API/Network_Information_API"
                    target="_black">here</a>
                to view the MDN docs. Note that this API is not supported by
                Firefox.
            </p>
        </div>
    </div>
</div>

const connection =
		navigator.connection ||
		navigator.mozConnection ||
		navigator.webkitConnection;

connection.addEventListener('change', updateConnectionStatus);

return connection;
}

function updateConnectionStatus() {
	
	var speed =
		connection.downlink +
		Math.floor(Math.random() * 10) / 15 -
		Math.floor(Math.random() * 10) / 15;

if((speed<0)||(connection.downlink==0)) speed = 0.0;

var type = connection.effectiveType;
	var rtt = connection.rtt;
	var angle = calcAngle(speed);

var connection = getConnection();
let timerId = setInterval(() => dummyRequest(), 1000 + Math.random() * 500 + Math.random() * 500 );

function refreshSpeedOMeter(){
	clearInterval(timerId);
	let speed = 0;
	let angle = calcAngle(speed);
	var type = "-";
	var rtt = connection.rtt;

timerId = setInterval(() => dummyRequest(), 1000 + Math.random() * 500 + Math.random() * 500 );
}

function dummyRequest() {
	// fetch("http://i66.tinypic.com/2s1unv6.jpg")
	// 	.then(response => response.blob())
	// 	.then(images => {
	// 		outside = URL.createObjectURL(images);
	// 		console.log(outside);
	// 	})
	// 	.catch(e => console.log(e));

updateConnectionStatus();
}

return Math.round(angle);
}
</script>

.speedometr .scale {
        position: absolute;
        border: 3px solid red;
        width: 65px;
        height: 15px;
        border-radius: 100% 100% 0 0;
        border-bottom: none;
    }

.speedometr .scale.low {
        top: 10px;
        left: -30px;
        border-color: #e74c3c;
        transform: rotate(-50deg);
        transform-origin: top right;
    }

.speedometr .scale.middle {
        left: calc(50% - 37px);
        border-color: #f1c40f;
    }

.speedometr .scale.hight {
        top: 10px;
        right: -30px;
        transform: rotate(50deg);
        transform-origin: top left;
        border-color: #2ecc71;
    }

.speedometr .arrow {
        position: absolute;
        bottom: 5px;
        left: 50%;
        margin-left: -1px;
        width: 1px;
        height: 66px;
        border: 1px solid;
        border-color: #2c3e50;
        border-radius: 100% 100% 0 0;
        background-color: black;
        transform: rotate(-75deg);
        transform-origin: bottom center;
        transition: transform 0.8s;
        transition-timing-function: cubic-bezier(0.65, 1.95, 0.03, 0.32);
    }

.speedometr .arrow:after {
        content: '';
        display: block;
        height: 14px;
        width: 14px;
        background-color: #2c3e50;
        border-radius: 100%;
        position: absolute;
        bottom: -1px;
        left: -6px;
    }
</style>

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