Smooth LED fading via PWM

[HankMcSpank]

Just to give you a flavour, this is a duty setting of 1...



Now LED3 & LED6 happen to be faulty (I can't be bothered to swap them out right now - they're way duller than others and clearly have an issue), but I reckon with a duty cycle value of 1 the led brightness should actually be more their level!

Now LEDS are notoriously difficult to photograph...the LEDS don't actually as bright as they do in the photo 'in the flesh', and these being high brightness have a lens that accutely magnifies any LED light but nevertheless I think they're too bright for a duty value of 1!