Join Date: May 2008
Location: Richmond, Tx
Vehicle: LHD Black SLK350, LHD Firemist SLK55
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John's 3rd Brake light Flasher, Gen 3
So - thought I'd throw this out there since I've got a load of brake light flashers going out.
A forum member who lives in a less restrictive environment than the US/UK asked if I could make a custom, continuous pattern flasher for him, and I said sure, since I'll have some quality time sitting in a hotel over the next month or so.
Got me thinking again about something I'd started and never finished, which was to integrate an accelerometer into the design - something that was stupidly complex and expensive a couple of years ago, but thanks to Steve Jobs and the iPhone, is now available in small, relatively inexpensive silicon with very good resolution.
So basically this would do exactly what the flasher today does - flash a preset pattern of your choosing - probably loads more actually - and additionally flash the third brake light when deceleration is greater than a user selected value.
Two modes would be possible - I could have it flash even if the brake are not applied, or only if the brakes are applied.
I'm hoping to be able to do this in the $100 range as a starting target. I'm about 80% confident I can do that in low run (<50), but will depend on the final design. Prototype code is pretty much done, just waiting on samples of a couple of different accelerometers to arrive.
The install would be more along the lines of SmartTop than what it is today. It would be mounted next to the rear SAM, and would be bolted to the rear electronics bay. Hopefully plug and play, but I suspect would be at least one connection that would be fiddly like the assembly of the SmartTop pins into the CAN connector.
Fully integrated with the SAM, and obviously no errors, along with a bypass mode.
Just thought I'd throw this out and see if there was any interest - R171 only at the moment due to the level of integration required - but wanted to give those who had asked for one of the current models a chance to change their minds....
Also ask for suggestions as to added functionality, comments, general sanity check! :-) Basically also the "is it worth the cost?" sorta thing as well..
Time frame is indeterminate - gotta fit this around my real job, but figure a couple of months best case to build a couple of prototypes, test 'em, and the get a low run of PCB's made.
EDITED : No, Louise was NOT happy sitting in the car with me stomping on the brakes taking baseline G readings! As a matter of fact, she may have even corrupted a couple of the data points! :P