I’ve taken apart the sensor bar and found it to be full of useful things I would never have thought of getting had I got the components separately. For example, I would not have thought of putting a small blue light to show when the IR Leds were on (as they are invisible to the naked eye!).

However a small problem has arisen – my complete lack of electronic knowledge! I thought that although the bar required 6 X 1.5 volt batteries to run, it only really needed 2 AAs and everything would be fine (and it would fit better to the glasses).

But I was wrong... so time to learn about electric circuits!

Al