It's been a long time coming but I believe I've finally worked out a circuit to add flashing brake lights to
my LED Taillight project. It works by flashing the brake light between 1 and 10 times then turning the brake light on until you release the brakes. The number of flashes is user settable at this stage, but when finished will probably be hard wired in to about 4 or 5 flashes. It also incorporates a 'decay' so that the number of flashes is reduced when applying the brakes frequently eg: in heavy traffic.
If you're familiar with my project you'll know I currently have six high power LED's for the normal tail light/running light, and a further 12 high power LED's surrounding them for the brake light, as shown below.
Tail light/Running Light mode

Brakes + Tail light/Running light
Have your say in the poll below. Any other comments, thoughts, suggestions etc are welcome.