I have performed all the steps shown and had also tried the troubleshooting methods to glow the LED but it didn’t glow.I have tried by changing pins 0 to 4 and altering code accordingly but still LED is not Glowing.
First, check that you have properly connected the required components or not, check the polarity, the code, bolt wifi module both lights are glowing or not. Doing all these steps and still, the LED does not glow then there might be some fault in the LED Or Bolt module.
i have checked everything , there’s no fault in led. The LDR project is working , i m recieving output . But in LED controlling project my module is not responding to the inputs i m giving via my laptop or mobile app.
My led was also not glowing having made all the proper connections, then I rewrote the code and saved the code after that it started glowing. Please check and rewrite the code properly.There should not be any error with the code you have written.
Everything was right , i recieved an email regarding my API has been blocked , that’s why LED was not glowing
Even I had the same problem, but I could resolve the problem by repeating the procedures repeated and finally led glowed when ON button is clicked.
But when I altered the program a bit to add BLINK button. Except the blink button the remaining two buttons ON and OFF are working.
Here is the altered program, can I know what’s wrong with this?
NOTE: I couldn’t show the whole program directly,so I have placed some single quotes in the tags and please consider them.
<html’>
<head’>
<‘title>Bolt IoT Platform</title’>
<‘script type=“text/javascript” src=“https://cloud.boltiot.com/static/js/boltCommands.js”></script’>
<script’>
setKey(’{{ApiKey}}’,’{{Name}}’);
</script’>
</head’>
<body’>
<center’>
<‘button onclick=“digitalWrite(0, ‘HIGH’);”>ON
<‘button onclick=“digitalWrite(0, ‘LOW’);”>OFF
<‘button onclick=“led_blink()”>BLINK
</center’>
<script’>
function led_blink(){
var c=0;
while(c<5){
setTimeout(function(){digitalWrite(0, ‘HIGH’);},1000);
setTimeout(function(){digitalWrite(0, ‘LOW’);},1000);
}
}
</script’>
</body’>
</html">
First of all check your bolt iot module is connected to your wifi ,as green light is glowing or not ,then check the code you write and don’t forget to save the code and check your connection is proper or not as i had a same issue ,then check whether the resister you use is not of very high ohm as it decreases the intensity of light ,use a small ohm resistor, after doing this still you facing the same problem then change the led it might be not working properly
Check connections of led positive terminal connected to one terminal of resistor and negative connected to ground.other terminal of resistor connect to 0 pin.Once check your code.
Check connections of LED positive terminal connected to one terminal of resistor and negative connected to ground. Other terminal of resistor connect to 0 pin. once check your code
I faced the same problem of LED not glowing. I connected 330ohm’s register and Led’s cathode, anode connection properly but led did not glow. I wrote the entire code, not copied and pasted it. I just copied the “links”. When I run the code it shows the “on” and “off” buttons, but when I press the button the LED doesn’t glow. Many times I checked the code, also logged out the connection and logged in but nothing happened. But when I read the whole code, I noticed that I wrote “Setkey” instead of “setKey”. And when I corrected this code and ran the program again; led is glowing. So, check all the keywords if you have written the entire code, not pasted it.
Troubleshooting steps you can follow to identify and resolve the problem are as follow :-
1.Check connections
2.Verify power supply
3.Verify the LED
4.Analog input reading
5.Software issue
to begin with test your bolt iot module is connected for your wifi ,as inexperienced light is glowing or not ,then take a look at the code you write and don’t forget about to shop the code and take a look at your connection is right or now not as i had a identical problem ,then check whether the resister you operate isn’t always of very excessive ohm as it decreases the depth of mild ,use a small ohm resistor, after doing this still you going through the identical problem then alternate the led it might be now not operating nicely