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1  Using Arduino / General Electronics / How to power an mp3 player on: June 24, 2011, 04:28:29 am
Hi,

I've got this mp3 player (photo attached) and I want to find a way to keep it constantly powered and not using batteries. Is there a way of doing that ?

Thanks
2  Using Arduino / General Electronics / Re: Alternative solution to batteries for a wireless microphone on: June 17, 2011, 12:40:08 pm
I thought about using solar power but unfortunately the installation will take place in a space without too much light. Also, the object won't be moving enough to generate any power. I don't know what it is but I really like idea of a squelch circuit, I will investigate.

Thanks
3  Using Arduino / General Electronics / Re: Alternative solution to batteries for a wireless microphone on: June 17, 2011, 11:35:35 am
Thanks for your reply.

The transmitter will be powered for twelve hours per day. It has to be portable because it will be placed inside a moving object.

I will look for batteries with a higher amp-hour rating.



4  Using Arduino / General Electronics / Alternative solution to batteries for a wireless microphone on: June 17, 2011, 10:45:55 am
Hi,

I'm working on an installation where I have to leave a wireless microphone transmitter on for two or three days. The transmitter works with a 9V battery. I wanted to ask if anyone knows if there is a way of changing the battery system of the transmitter with something that can last longer so i don't have to change the batteries every day ?

Thank you for you time
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