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1  Topics / E-Textiles and Craft / Re: EL wire: separate controllable strands, single inverter, battery powered? on: March 04, 2012, 03:58:37 am
So, you don't think there is any chance that the (relatively) high voltage from the inverter could zap the arduino?
2  Topics / E-Textiles and Craft / EL wire: separate controllable strands, single inverter, battery powered? on: March 01, 2012, 10:12:13 pm
I'm making a light display that will respond to music! I want to use only one inverter for a number of EL wire strands (possibly 12 of them) but have them separately controllable using the Arduino. I've seen a number of ways to do this but I had a few questions.

This seems to be the best option:
http://www.instructables.com/id/Programmable-LilyPad-EL-Wire-Dress/?ALLSTEPS
For my project, adding another optocoupler/triac pair for each separate channel would be necessary.


Could I use solid state relays instead? What would be the pros/cons?
The NTE3044 optocoupler is difficult to find. At Mouser it says that the part is not recommended for new designs. What does that mean and how could I find a equivalent part?
I have read that inverters can be damaged if they are turned on while not connected to anything. Why is this?


Also to be considered:
At any point in time while using my device, only 3 of the EL strands would need to be lit at once.


Thanks for helping me out!
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