[SOLVED]simple problem?

Projects General Guidance
1

Hello,
I have new Arduino uno r3. I would like to do the "Blink" project, but it doesn't work on my board.

  • All wires and parts connected as a picture (include director/way of connenting)
  • Port and board were choosen good
  • Green LED still on, orange led near 13 blinking
    What sould i do to repair/solve this?

photo:

PS: my english is not well, so it will be pleasure to read simple help :wink:

2

(deleted)

3

please post your code ..

How did you connect the led ?

pin 10 -- resistor -- led --- pin13 ??

4

rewired, but still not working ;/

5

Hey I think it is! The led blinking near 13 is the proper result, since its attached to that pin
If you want pin 10 to blink, change the digitalWrite(13,high) to digitalWrite(10,high), as well as where it says digitalwrite(13,low)

6

no, it isn't solve. It doesn't work. 8-13 doesn't matter.
to be sure: this blinking orange led is pernament on board. Not mine.

my code: (avaiable in all helpdesks (F1/Help))

void setup() {                
  // initialize the digital pin as an output.
  // Pin 13 has an LED connected on most Arduino boards:
  pinMode(10, OUTPUT);     
}

void loop() {
  digitalWrite(10, HIGH);   // set the LED on
  delay(1000);              // wait for a second
  digitalWrite(10, LOW);    // set the LED off
  delay(1000);              // wait for a second
}

edit: this orange led doesn't blinking. Now it's constantly light.
edit#2: maybe its cosed by resistor? I'm using 90k

7

Check the LED polarity. A flat side is cathode. It is going toward GND. I see limiting resistor, I hope the value is between 220 to 470.

8

You probably connected your LED to aref instead of the GND. The GND is the 4th pin from top left:

9

I pluged 300k, polarity is good (i've tried both ways).

void setup() {                
  // initialize the digital pin as an output.
  // Pin 13 has an LED connected on most Arduino boards:
  pinMode(10, OUTPUT);     
}

void loop() {
  digitalWrite(10, HIGH);   // set the LED on
  delay(1000);              // wait for a second
  digitalWrite(10, LOW);    // set the LED off
  delay(1000);              // wait for a second
}
10

Black wire go to GND pin.

A 300 K ? Orange-Orange - black - Orange ? That what you have ?

hum... I got bad new... IT not going to work.

Why ?

Resistor is WAY TOO high.

Get a resistor from 220 ohm to 470 ohm. Check the color code of the resistor to make sure.

And check the LED polarity if you put a proper resistor.

11

OK so you fixed your GND problem or was this a different picture with the jumper in the correct pin? :wink:

You need to use 300 ohms, not 330 K ohms. If you had better white balance on your picture, I would be able to read its color code but now that you told us, it's 1000 times too big.

12

@liudr

I see a brown band. The OP got a 1 % type resistor. My guess...

13

Ok, problem has been solved. The reason was i used resistor 300k (yes kiloohm), when i should use no more than 470 (ohm) as you told me. Now it looks great!
Thanks for all, esspesialy for Techone who saw the problem first.

BONUS: how it works? :

14

Thanks for all, esspesialy for Techone who saw the problem first.

Your welcome...