LED torch version 3.0 made!

Today I made the 3rd verison of my LED torch... Now it does not have a slide switch to turn on the white LEDs as in the previous versions (1 & 2). The LEDs used are five 5mm superbright LEDs. I put a micro switch which turns on/off the LEDs successively as you press it. It's quite comfortable to work with as compared to a slide switch (you have to remember which side to slide it towards :P) For this circuit I used a CMOS JK Flip-Flop CD4027 for storing the 1 bit value. And ofcourse there's a light sensor just like previous ones to help not keep bumping your head in the dark :). The battery was Panasonic make & it is the one used in cordless handsets: 3.6V, 300mA. Checkout the complete schematic & technical details on my website, I'll be shortly putting it. Here are some pics:

The panasonic battery, enough to power it till ~5 hrs!




"Motherboard" :D


One jumper connector is for charging & the other for battery terminal

The back-side

That's how they connect


Action!