LED not working

Using Arduino LEDs and Multiplexing
1

because i put it in power-Vin and GND a small shortsurcit happened with the led By misstake what can i do

2

Hi, @SaiMahajan
Welcome to the forum.

https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum

What model Arduino?
What LED?
-Vin and gnd, do you mean you connected these terminals up the wrong way?

What was your power supply?

Thanks... Tom.. :grinning: :+1: :coffee: :australia:

1 Like
3

By misstake i put led in vin and gnd and now i wont to turn on it again

4

Have you removed the LED?
What is the power supply?

You need a current limit resistor in series with a LED for it to work properly.

What won't turn on again?

Do you have a DMM? Digital MultiMeter.

Thanks.. Tom.. :grinning: :+1: :coffee: :australia:

1 Like
5

Yes i have removed LED
Power supply was ardino uno
No i dont have DMM

6

Hi,
So you had the UNO connected and powered by the USB plug?
And connected the LED across Vin and gnd?

Not sure what you did?

Thanks... Tom... :grinning: :+1: :coffee: :australia:

1 Like
7

yes, I had the UNO connected and powered by the USB plug
yes I connected the LED across Vin and gnd?

8

Does the board still work?

9

yes

10

Then what is the problem?

Tom.. :grinning: :+1: :coffee: :australia:

11

I guess take it as a learning experience and throw out the LED if that doesn't work....LEDs are replaceable and cheaper then a Arduino board.

BTW what happened to the current limiting resistor for the LED?

12

dont know???

13

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.