A seven segment font to display numeric data

TIMAI2 · May 4, 2020, 1:24pm

You could try using a webviewer, an "alarm clock" font, some javascript....
(I used a slider to emulate the revs)

HTML:

<!DOCTYPE html>
<html>
<meta name=“viewport” content=“width=device-width, initial-scale=1.0”>

<head>
	<title>Revs | Example</title>
	
	<style type="text/css">
		@font-face {
			font-family: 'alarm_clockregular';
			src: url('alarm_clock-webfont.woff2') format('woff2'), url('alarm_clock-webfont.woff') format('woff');
			font-weight: normal;
			font-style: normal;
		}
		
		body{
			font-family: 'alarm_clockregular';
			background-color:black;
		}
		h1 {
			color:lightgreen;
		}
	</style>
</head>

<body>
	<h1 id ="revs"></h1>
</body>

<script>
	var revs = window.AppInventor.getWebViewString();
	var myRevs = setInterval( myTimer , 10);
	
	function myTimer() {
	revs = window.AppInventor.getWebViewString();
	document.getElementById("revs").innerHTML = pad(revs,4);
	}
	
	function pad(num, size) {
    var s = "000000000" + num;
    return s.substr(s.length-size);
}
</script>

</html>