It is possible if all you need to do is vary the analog signal, however, the arduino outputs 0-5V not 0-10V, SO you will need a amplifying circuit. Actually a simple 0-10V OP amp should work, or if you want to control multiple ones in the future, then a H-bridge will work too.If it is really cold there, then you may want to get a insulated box to put all this in, if you haven't already.
Is this your first time using arduino? If so, then yes, check out the get starting guide and try some of the basic arduino examples. Their are plenty there.
Looks like it might work very nicely, in deed. It seems I could easily add an infrared receiver and use a very simple remote for the manual dimming function... that should be so foolproof I don't need any manual overrides for the dimming, just a main on/off switch in the controller box and everything else is controlled using the the IR remote (plus additonally ethernet/wifi connection from my computer).
Yea, that is basically it.How far away will this be from you or your computer?
Ok so I need an op amp that I could hook up to the same power supply as the Arduino board, get the 0-5 out of the board and amp it up to 0-10.
QuoteOk so I need an op amp that I could hook up to the same power supply as the Arduino board, get the 0-5 out of the board and amp it up to 0-10.In case you don't know this, you'll need a slightly more than 10V powering the op-amp. Then, you just need an op-amp circuit with a gain of 2 (an op-amp and two resistors).The Arduino doesn't have a true DAC. It has PWM which can be filtered (with a resistor & capacitor) to get a variable DC voltage.
Well, actually I need both 12 V and 5 V... like an ATX power supply, but with a lot less power output. Maybe I could just drop down the voltage from 12 to 5 with a resistor because the currents are so small? I don't have much experience with low current electronics... don't worry, I know how to handle mains power.
Maybe I could just drop down the voltage from 12 to 5 with a resistor because the currents are so small?
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