Light intensity distribution (LID) of a lamp can be measured by taking wall/ceiling beamshots with a digital camera. The scripts process jpgs images (that have to be processed from raw data) and visualize the LID nicely.

Driver: Linear, using AMC7135 and Atmel AVR ATtiny45, Li-Ion battery powered. The firmware provides convenient control - bikelight-specific.

Below are firmware features

Features

  • Multi-tasking: can do everything simultaneously: blink the info-LED, change brightness of the power LED, handle buttons presses
  • Convenient Far/Near modes changing (e.g., to not blind oncomers). For example, press three times on left button to turn Far+High lights off - useful when approaching kids, or when riding on bumps when the Far beam rocks wildly up and down. Press three times on right button - Far+High are back on
  • For a given Far and Near tilt angles (optimal for given speed/terrain), their (Far/Near) relative brightness difference can be adjusted, to make the illumination more uniform
  • Monitors voltage level: there are many levels at which headlight will blink to indicate voltage drop
  • Monitors temperature
  • Levels can be set by the user without re-programming
  • Strobe - makes a great signal
  • Smooth light up/down
  • Key lock mode (or anti-hijack): headlight requires a password

Project Samples

Project Activity

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Categories

Hobbies

License

BSD License

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Additional Project Details

Operating Systems

BSD, Linux

Programming Language

C

Related Categories

C Hobbies Software

Registered

2017-07-19