Software developer from Germany with interests in programming, electronics, flashlights, calculators, writing instruments and various outdoor activities.

Visit my website for more info and updates.

See also: /u/[email protected]

  • 17 Posts
  • 19 Comments
Joined 1 year ago
cake
Cake day: June 18th, 2023

help-circle


















  • Can this actually do a sustained 800lm for 6 hours per the manufacturer spec?

    I don’t think so. If you ignore the stepdowns in my runtime measurement and assume that it can maintain high level all the time, I’d say the total runtime at 800 lm will be more like 3 hours. Which is more or less what you get from the flood channel after the initial stepdown. Turn it on at turbo, wait 30 seconds for the stepdown and then you’ll get almost 3 hours at roughly 750 lm.

    runtime





  • Yes, you could (theoretically) use an emulator for the microcontroller. I tried it a few times. And it isn’t fun. It takes a lot of effort to simulate all inputs, outputs are hard to interpret and all kind of effects of the real light aren’t reproduced.

    In reality we flash the build onto a flashlight and try it. Sometimes it’s only a prototype, disassembled. And rarely it’s an actual devboard which has all relevant parts of the flashlight nicely accessible (basically the microcontroller with required electronics, regulated power supply, low power LED to see the output, several LEDs for aux and button and the switch itself).