My pc can't recognize arduino "copy" after smoke come from it.

Other Hardware 3rd Party Boards
1

I am very very new to this, but I want to learn using Arduino, and I had a Chinese Arduino at home, so I tried to use it. Everything went good, I could use the "speaker", and I could use the Built-In LED on the board, but when I tried to use the not Built-In LED it went wrong. At first(pic1,2,3)

1
11920×2560 379 KB

2
21920×2560 286 KB

3
31920×2560 263 KB

when I uploaded my program to the board it worked kinda..,the speaker worked and the LED worked, but not the way I liked it. This LED has 6 LED in it, the 6th LED worked the way I programmed it, but somehow the 1st and the 2nd LED lighted up, but I only programmed the 6th to light up. I thought thats beacuse it's to close to the board so I moved the board a little bit further back.(pic,4,5,6).
4
41920×2560 410 KB

5
51920×2560 306 KB

6
61920×2560 250 KB

It went wrong when I plugged it in a little bit of smoke come from it, so I immediately unpluged it. Now I stripped all of it and I tried to use just the board, but my PC can't recognize it. I tried to use different cables, but nothing, the power LED is glowing just a little bit. I know it's my fault, but I am trying to understand what did I did wrong. I think I can't use this board anymore. I will buy another board someday, because I liked doing it, but I will read more about it so this will never happen again. So can somebody tell me what did I did wrong(I did everything wrong), so it can never happen again.

The whole thing is on a Robot, which I got from my friend(He does not need it), but I tried to strip down the whole thing from the Robot, but the Breadboard(or IDK what is it called) is glued to the plastic.

Thank you in advance, and sorry for my bad english and my incompetence in this topic.

2

Hello, welcome.

Your English is fine, and this is a beginner's and learner's forum so there's no such thing as incompetence here, we all have to start at the beginning.

Well done for the posting clear photos but unfortunately they don't help much. A schematic, which can be hand drawn and photographed, is more likely to help. Also your code in code tags </> as per the forum instructions How to get the best out of this forum would be more use.

I don't know what most of the parts in your photos are, in particular the thing at the top of your first photo with 2 red and 2 black wires coming out of it.

Can you identify which component went up in smoke?

Having a part go up in smoke is frustrating, if you can find out why then you have at least learnt from your mistake.

3

likely a L9110S based H bridge

image
image1126×1106 153 KB

4

Well, it wouldn’t matter after you saw the smoke, it is toast now, learn from it, get another one

1 Like
5
3 Likes
6

Thank you for the fast answear, I am not at home at the monent so I can’t draw a schematic right now, and my code is from my memory.

#define buzz 11
#define led 9

void setup(){
      pinMode(buzz, OUTPUT);
      pinMode(led, OUTPUT);
}

void loop(){
    tone(buzz,500,1000);
    digitalWrite(led, HIGH);
    delay(1000);
    digitalWrite(led, LOW);
    delaz(1000);
}

I don’t know that either, but it’s not connected to the board.

I don’t know that I think I was in shock, but if I remember correctly it come from the USB mini socket.

Yeah, I will do that.

7

You have discovered why most of use never buy just one of a part, always good to have spares, because everyone makes mistakes.

It would be unusual, but does the arduino have long enough pins on the bottom to actually plug into the breadboard (usually the pins are only long enough on one side of the board, but your board may have "stacking" headers with long pins on both sides). If so, then you are connecting pins of the arduino together with those jumpers.

8

What @david_2018 said. Could be that the board is just resting on the breadboard.

Being curious, what is the purpose of the white jumper?

9

My Arduino looks like this:

1920×2560 305 KB

and my jumper is a Male to Male jumper and because my ground was taken by the speakers jumper, I tried to ground my led as well so I sticked my male to male jumper in front of the ground. As I said I am very beginner in this topic.

10

you probably drew to much power from it and fried the voltage regulator under the board.

Can you shear a picture of the under side of the board?

11

DeadParrot
Perhaps it's only resting.

2 Likes
12

The wiring around the "speaker" is likely a problem.

In case you don't understand how the breadboard works, each row of 5 holes is wired together, so when you insert the arduino, the pin connections extend outward to the edge of the breadboard throughout each row. As an example, in the pictures your yellow wire is connecting GND to the REF pin as well as the speaker ground.

13

kép
kép1920×2560 495 KB

I can’t take a good photo of it, but nothing looks burned or fried.

Oh, thank you, I didn’t knew that!

14

sorry can you take one of the top

15

kép
kép1920×2560 507 KB

16

try to connect it to your pc again because nothing is fried at all

17

make sure you select nano in tools menu, the correct com port and boot loader

18

Not the reason for the smoke but a coding fault. Must be delay(1000).

19

how did it compile with that fault

20

Nothing, and now the power led doesn't light up either.

Yeah that's a typo, but in the actual code it was delay, I wrote this code on the bus :smiley: