Technology
HOW TO – Build a simple Luxeon LED bike headlight

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Ian writes – “This is a simple bike light which can be contructed with a minimum of tools. It is bright enough to be useful as a headlight, is fairly robust, and cheap to construct. It’s perfect for commuting and does a surprisingly good job for mountain biking too. The whole thing, including rechargeable batteries, weighs about 200g and will run for over two hours. “Link.

Related:
Other bicycle light projects – Link.

9 thoughts on “HOW TO – Build a simple Luxeon LED bike headlight

  1. looks like the whole point with this project is to be able to measure and control via a pc. can’t understand the point with PIC, a couple of DACs/ADCs should be sufficient to both measure and controll, while the rest of the functions could have been implemented by simply programming the pc.

  2. “can’t understand the point with PIC, a couple of DACs/ADCs should be sufficient to both measure and control”

    the point/goal is simplicity/evolutivity/price:
    The less components, the quicker/easiest it is to make. For ~ 3$ an Atmel AVR atmega8 give you plenty of IO, 6 ADC, internal oscillators, UART, etc. AVR are also quick enough for ADC(one instruction per cycle while Microchip PICs need 4 cycles)and obviously the firmware can always evolve to fit new needs.
    Concerning Liberlab it also work well with a “USB to Serial cable”.

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