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Topic: Help on which Arduino to purchase (Read 377 times) previous topic - next topic

esimard

Hi all, I wish to create a system which will control 5 channels of PWM led strips. (12 volt strips), and 1 channel 120 volt incandescent lights (this could be dropped if not feasible to mix the two voltages).  This display of leds would need to be started by depressing an input sensor (push button switch would be fine) and then bring up the various channels of leds, slowly changing color to simulate a sunrise over a period of around 10 mins.

The question is which Ardino would be most appropriate for this application?  The led strips already have power amplifiers so I don't think a large output current is necessary.

Thanks, any guidance would be appreciated.
_Ernie

HazardsMind

#1
Feb 23, 2013, 08:42 pm Last Edit: Feb 23, 2013, 09:19 pm by HazardsMind Reason: 1
Well, every arduino has atleast 6 PWM pins. in order to control your lights, your going to need some optic-isolators or relays. Your choice.

EDIT
My GitHub:
https://github.com/AndrewMascolo?tab=repositories

esimard

Hi, thanks for the info.  Since the display would require a slow fade I don't think relays would work but perhaps opto idolaters.  If I understand  you correctly the PWM output from the Arduino could not feed directly into the amplifier powering the 16 foot led strips?

_E

HazardsMind

No, they can't. That's why I suggested the opto-isos. You could probably get away with regular transistors, if you know how to.
My GitHub:
https://github.com/AndrewMascolo?tab=repositories

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