Originally Posted by west' post='1074970' date='Dec 16 2009, 09:10 PM

For those like myself who already have their ebay lights and are interested in DIY-type approaches, a probe hooked up to the LCM during lunch verifies that it manages the intensity of the 7506's with a PWM. My co-workers and I didn't have a scope handy, so I bread-boarded a small circuit to test whether the voltage from the LCM was repeatedly jumping from 0-12VDC- and it was, in both "running light" and "brake light" operation with varied duty cycles. "Brake light" operation is not a constant 12VDC on my 2007 550i (unsure on other platforms). Instead, it just had a longer on-time than the "running light" signal. I guess the easy/cheapest route to getting this to work is to get a clock running at the same duty cycle as the LCM along with a comparator comparing the clock to the actual signal sent to the lights by the LCM when in "running light" mode, to effectively remove the "running light", but I don't have my own scope to calibrate this sort of thing. I'm going to go a bit overkill and use an Atmel uC (roughly $7 with external oscillator/regulator parts) to sample the LCM signal (by measuring the on-time for the "running light" and "brake light" signals), then have the Atmel uC switch power to the 7506's as brake lights if the on-time exceeds that of the "running light" time.

Originally Posted by bimmer530iguy' post='1070020' date='Dec 8 2009, 02:53 PM

+1 Wish they looked more like the OEM LCI

Originally Posted by west' post='1074970' date='Dec 16 2009, 06:10 PM

For those like myself who already have their ebay lights and are interested in DIY-type approaches, a probe hooked up to the LCM during lunch verifies that it manages the intensity of the 7506's with a PWM. My co-workers and I didn't have a scope handy, so I bread-boarded a small circuit to test whether the voltage from the LCM was repeatedly jumping from 0-12VDC- and it was, in both "running light" and "brake light" operation with varied duty cycles. "Brake light" operation is not a constant 12VDC on my 2007 550i (unsure on other platforms). Instead, it just had a longer on-time than the "running light" signal. I guess the easy/cheapest route to getting this to work is to get a clock running at the same duty cycle as the LCM along with a comparator comparing the clock to the actual signal sent to the lights by the LCM when in "running light" mode, to effectively remove the "running light", but I don't have my own scope to calibrate this sort of thing. I'm going to go a bit overkill and use an Atmel uC (roughly $7 with external oscillator/regulator parts) to sample the LCM signal (by measuring the on-time for the "running light" and "brake light" signals), then have the Atmel uC switch power to the 7506's as brake lights if the on-time exceeds that of the "running light" time.

Originally Posted by LBimmer' post='1077903' date='Dec 21 2009, 06:48 PM

So went to fedex today to ship the lights to Bruce. And it's $300. Sorry guys but I'd rather sell these and go OEM than pay $300 to ship to Bruce. I'm sad...I know he would have made them even better but I can't justify the $300 shipping. Hopefully someone can figure out how to get those lights in the back off!

Originally Posted by redEYEjedi' post='1078016' date='Dec 21 2009, 09:44 PM

I have to admit.. but I have a similar problem as LBimmer. The shipping cost is just WAY too high..

Hopefully some of our stateside gurus can work some magic.

Originally Posted by LBimmer' post='1077903' date='Dec 22 2009, 02:48 AM

So went to fedex today to ship the lights to Bruce. And it's $300. Sorry guys but I'd rather sell these and go OEM than pay $300 to ship to Bruce. I'm sad...I know he would have made them even better but I can't justify the $300 shipping. Hopefully someone can figure out how to get those lights in the back off!

Originally Posted by pjinca' post='1078022' date='Dec 21 2009, 09:55 PM

Hope so, I am still waiting for Project5 to give me a call and let me know when they have more in stock (SoCalBimmer got the last set of smoke, I'll never forgive you Steven!!!!! )