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When I play Wii on my projector, setting up the sensor bar is a real pain, the cables aren't long enough and at the distance I play, the pointing is unreliable. I considered making a longer sensor bar and fixing it to the wall but aesthetically it put me off. I recently saw a really great...

I went to buy a couple of li-po cells from batteryspace, but they want to charge me $85 for economy shipping to the UK! (I know they're classed as hazardous materials etc. but that's WAY too pricey) So I need some kind soul from the USA to do me a big favour and forward a package to the UK, I...

I made a little prototype of my low-batt circuit today, and messy hand-soldering aside, it turned out pretty well. I've got enough parts on hand to make quite a few more, so I thought I might offer them for sale here on the forums. (excuse the poor mobile phone pics) dimensions: 17 x 15 x...

Here I'll detail what I did to build my low-battery circuit, hopefully some of this will also apply to more general circuit making. First, start with a schematic diagram; here is mine. This circuit will show a green led when the battery is ok, and switch it to show a red led when the battery...

Re: Low battery indicators Here is a small circuit for a low battery indicator. The green led(referred to later as led1) is the power indicator, it is on as long as the circuit is powered. The red led(led2) will come on when the battery voltage drops to a level set by the resistors. For my...