Cooling LED screen [SOLVED]

[Jose Joaquin]

Good Fernando , first thank you for your great work I really admire is like a person has bothered to share such an expensive work in all aspects ... I wanted to ask you a question because I 'm riding my ferduino and 'm riding circuit assembly according RECOMMEND :

because my fans are 12 V and doubts I have are ;

* I will put 3 , connect them in parallel with the other, or goes in the F2 ULN2003A ? ... And third in the F3 ventiador ?.

* and all pins are spliced ​​1 to 7 and pin 1 ULN2003A ? ... I do not understand to do where you put pin1 disable that I have to do ?

Good is that there are several questions and I would be very grateful to you for help .

Regards.

[Fernando Garcia]

Hi!

Welcome Jose!

* I will put 3 , connect them in parallel with the other, or goes in the F2 ULN2003A ? ... And third in the F3 ventiador ?.

Use a pin to each fan.

* and all pins are spliced ​​1 to 7 and pin 1 ULN2003A ? ... I do not understand to do where you put pin1 disable that I have to do ?

Yes, all pins of control are in parallel.

The pin 1 is used to turn ON or OFF the fans. See the code here.

Best regards.

[Jose Joaquin]

Fernado ... thank you very much for your quick response and dsiculpa my bad English.

F1 will do so because the fan 1
F2 2
F3 3

and the other part of the integrated 1 to 7 together and to pin 1 .


Thanks again.

[Jose Joaquin]

fernado good again , I forgot to comment you the question I asked how Ivan ...
I stay connected fans ask is done with PWM cable laying pin13 , thank you very much again.

Regards.

[Fernando Garcia]

Hi!

Yes, as you can see on schematic.

Best regards.

[Jose Joaquin]

Fernando Garcia » Yesterday 9:21 pm wrote:

Hi!

Yes, as you can see on schematic.

Best regards.

Hello Fernando apology you ask again ... then connect my fans as they will have 3 12 v cables (red, black, yellow). Thank you

[Jose Joaquin]

Hello Fernando, as I connect my 3 fans you have. 3 red, black, yellow) cable ??

Thank you.

[Fernando Garcia]

Search before ask please.

viewtopic.php?f=25&t=278&p=2070&hilit=3+wire+fan#p2070

viewtopic.php?f=24&t=128&p=798&hilit=3+wire+fan#p796

[Jose Joaquin]

Fernando Garcia » Today 1:36 pm wrote:

Search before ask please.

viewtopic.php?f=25&t=278&p=2070&hilit=3+wire+fan#p2070

viewtopic.php?f=24&t=128&p=798&hilit=3+wire+fan#p796

gracias