I am trying to use an arduino due to control the following http://www.vellemanprojects.eu/products/view/?id=354314 dc dimmer for an ac fan.
As far as I understand it the dimmer requires a dc input between 0v and 12v to control the ac fan with 0v stopping the fan and 12v for max speed.
I thought about using the DAC output and amplifying the dac output from the due.
Is this the right way to do it and how do I amplify the signal?
A quick search on Google makes me think that I need an op amp circuit to amplify the signal. Can somebody point me to a suitable circuit for this or suggest a better alternative?