Jun 272014

Started working on a small project to learn more about manufacturing pcb’s and SMPC’s (switch mode power converters)

Its a driver for LED’s in toy cars. It drives 2 white LED’s @ +5Volts from a coin cell battery down to 2.5 volts.

The code will auto detect what type of led is connected and drive it with around 1 mA witch sound like nothing but its perfectly visible. it can drive red LEDs with real low Forward voltage to but then it bypasses the SMPC and uses a simple Resistor to drop the voltage .

Front two white LED’s and rear 2 red LED’s

A button allows the LED intensity to be changed

DSC_0004 DSC_0005


brd ch




  One Response to “Car Light”

  1. Hello,

    This is Blue from Precision Lightings company in China.
    We want to have a chance to sell you our LED/HID auto lamps & LED work lamps. E-catalog are available.

    http://www.precision-lightings.com skype: precisionlightings

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