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Sanguino case fan connection

Posted by MPower

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MPower

Sanguino case fan connection
March 08, 2013 05:39PM

Registered: 11 years ago
Posts: 195

Are there any pins on the Sanguino board that can be used for a fan to cool the Sanguino board itself?

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logical_fallacy

Re: Sanguino case fan connection
March 09, 2013 07:26AM

Registered: 11 years ago
Posts: 4

There are 3 12V / ground pin pairs on the top of the board between the stepper motor pins.

800px-Sanguinololu-photo-top.jpg

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MPower

Re: Sanguino case fan connection
March 09, 2013 11:23AM

Registered: 11 years ago
Posts: 195

My bad, forgot to specify that I want the pins to be powered during printing only, so that I don't get yet-another-fan-whim constantly. For constant 12V source I went straight for the PSU connector and split there.

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logical_fallacy

Re: Sanguino case fan connection
March 09, 2013 11:45AM

Registered: 11 years ago
Posts: 4

Then I would use one of the bottom right extension header pins to drive a transistor and configure the firmware (and gcode) accordingly.
sanguinololu-fan-hack

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MPower

Re: Sanguino case fan connection
March 09, 2013 11:56AM

Registered: 11 years ago
Posts: 195

I thought about the firmware addon route, adding an extra thermistor inside the case and running the fan for a specific temperature readout. Has this been done yet?