digitalRead with various span ids

Development
1

I have multi span ids like output1 , output2 , output3 but the following code is not working.

digitalRead(id,‘output’+index);

where index can have value 1,2 or 3.

2

Hi @ankit.negi1525 ,
Please send us your full code snippet. Also, see if there is any error or warning message in console.

I think you are executing digitalRead inside for loop. Put some delay on each iteration.

you can refer this code snippet.

// (1) define the variable for the array index
var index = 0;

// (2) define the delayed loop function
function delayedLoop() {

    span_id = "ouput" + index;
    //digitalRead(0,span_id);
    alert(span_id)
    // (4) if the end of the array has been reached, stop
    if (++index == 5) {
        return;
    }

    // (5) recursively call the delayed loop function with a delay
    window.setTimeout(delayedLoop, 3000);
}

delayedLoop(); // (6) start the loop
3

Hi ‘output’+index where index is a int cannot be used , the entire variable must be a string example

'digitalRead(id,("output"+String(index)))';
4

<!doctype html>

<html>

<head>

<title>BOLT</title>

<script type=“text/javascript” src="/serveFile?filename=bolt.js"> setDebug(true); </script>

</head>

<body bgcolor="#01FFFF" >

<center>

<h3> Sensor data </h3>

<span id=“output” style=“display:none;position:absolute;bottom:-30px”> Pin Val=1 </span>



<script>

digitalRead(4,“output”);

var c=document.getElementById(‘output’).innerHTML;

document.write©;

</script>

</body>

</html>

still not working @datta.naik

5 
<html> 

<head> 

<title>BOLT</title> 

<script type="text/javascript" src="/serveFile?filename=bolt.js"> setDebug(true); </script> 

</head> 

<body bgcolor="#01FFFF" > 

<center> 

<h3> Sensor data </h3> 

<span id="output"> Pin Val=1 </span>

<script>
digitalRead(4,"output");
</script>

</body> 

</html>

@ankit.negi1525 please try the above code , I have tested it, your style statement in span id was creating an issue

6

Also if you still face issues try this solution, and if you still face issues please send a screenshot of the console screen, when you open the page in google chrome -> right click -> inspect element -> click console tab.

1 Like
7

yeah its working now. thank you