If I wanted to start from scratch, I'd start with a 555 timer and a binary counter. Then you could use an AND gate to catch the 1 and 2 bits off the counter and use a latching IC with reset to handle the rest.
A bit over the top - the ISIS wiring system lets you program the behavior. I've been thinking of doing exactly that - flash twice rapidly and then solid on.
I'm just not too sure what DOT and local law says about it - turn signals, no problem, brakes? I do remember a kit in the day that flashed brake lights in direct relationship to deceleration. Seemed nobody complained about it, lack of interest put them out of business.
Stop and go traffic in Branson might annoy the driver behind you a bit, but I agree the edge for a small, low to the ground sportscar in traffic is needed. SUV's and F150's aren't getting any smaller, it's half the traffic here.
I think the issue will pivot on if the flashing is interpreted as signalling an emergency vehicle. I'd avoid any pattern that suggests it - and our interpretation isn't the one that matters. It's the officer who has the first say.
I'd be quite happy to get stopped for that one - means the Coupe was bought and finished . . .
I ordered the United Pacific model from Summit Racing today, $13.95 plus shipping. Hope it works on my FFR Roadster, as I have been rear ended in my daily driver twice in the last year. Both times while stopped at a stop light.
What can I say - teenage drivers paying attention to their phones instead of traffic.
I have a Motorcycle 3rd brake light that is programmable for solid or flash. I know that when I had it on flash and was stopped at a light AT NIGHT the people behind me hated it. I received many complaints. On steady was no problem.
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