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But really, is there actually any simple guide that tells you how to go about making some sort of charger where it switches off by itself when it finishes charging via USB?

bumping this topic. Can't I just wire from the +5v of the USB to the rechargable battery instead or is it just a disaster waiting to happen?

I'm now working on a second version of a NES MP3 player. My first version controlled the MP3 play/pause etc via tactile switches but I'm trying to go for a more authentic approach and use the original PCB that came with the NES controller. Unfortunately, I have absolutely no idea which area to cut ...

What is the recommended way of cutting out a square or rectangular hole in in plastic?

bgnome wrote:you could always get one of these:

I'm a bit worried that if I buy it, it won't fit into the Nes controller.

So I decided to try the whole, "MP3 player in a NES controller" mod I read ages ago. I bought a cheap MP3 player since it doesn't have an LCD and a cheap NES controller. The MP3 player is powered by a single AAA battery but I realised that if the battery runs out, I'm going to have to go throught ...

Well, I bought the MP3 player. Quite cheap from where I bought it. I gutted it and the innards are still working. Anyways, the buttons on the sides which operate the stuff like play, forward etc look like this:

http://img420.imageshack.us/img420/9409/dsc01177mt9.th.jpg

http://img306.imageshack ...

I know this isn't an original project and it was already done before but when I try and find instructions to make it, I seem to come up with nothing apart from the same thing over and over again. Even then I thought I'd still give it a go. I have an old NES controller and soon I'll be getting on ...