Recent content by Dr.Jones

  1. Dr.Jones

    DriverVN & DriverVNX - Programmable Circuits

    Maybe I should answer those... Yes. Yes, 0.3s. Yes. Internally the double-click mode is just a mode behind the last mode. A single click then turns off, a hold advances to the next mode, which is the 1st mode (wrap around), and a double-click gets to double-click mode again. From off, the...
  2. Dr.Jones

    Is It Possible to Mod/Hack "software" of light?

    Yes, several people at BLF do so, and it's my hobby, too. Popular drivers for firmware mods are the NANJG105C and NANJG101-AK1, they have a programmable ATtiny13A MCU. Many, if not most, other budget drivers however have MCUs that are not reprogrammable.
  3. Dr.Jones

    Fun with PWM: Flashlight plays music

    It's a custom board for that flashlight with a momentary switch on board and 2 status leds, and with an ATtiny85 :)
  4. Dr.Jones

    Fun with PWM: Flashlight plays music

    It's an 8* AMC7135 based linear driver, electrically pretty much like a NANJG105C, but with a bigger MCU (and a momentary switch).
  5. Dr.Jones

    Fun with PWM: Flashlight plays music

    The air itself actually... Light heats fabric, fabric heats nearby air (a very thin layer), air expands, all very quickly. There's a more detailed explanation in the video description.
  6. Dr.Jones

    Musical flashlight from hell... now with fire!

    Re: Musical flashlight from hell Several of my LED flashlights play the Imperial Theme from Starwars (inspired by floppy music): Fun with PWM
  7. Dr.Jones

    lux, candela - proper terminology

    I don't see one on your side... Some of those values are fine: twice the distance, a fourth of the illuminance (with some % error), but with some of those lights the values seem odd. However the resolution is quite bad in those measurements, so at the longer distances there are quite some bigger...
  8. Dr.Jones

    RGBW XML Driver mod.

    If remember correctly, this MCU is a noname without any imprint, probably not even reprogrammable at all like quite a lot of those. For electronic switches I have a suitable driver with arbitrary color mixing, see here
  9. Dr.Jones

    Color of pure photon

    The key word is superposition: The photon is in a superposition state of having multiple wavelengths, actually a whole range of them. A wavelength measurement (like detection with our eyes) lets that superposition collapse, the measurement changes the quantum properties, maybe giving blue as...
  10. Dr.Jones

    Color of pure photon

    Actually even single photons have a frequency uncertainty and thus a range of wavelengths (corresponding to their energy uncertainty, and to their coherence length), thus a single photon can be white (and many are).
  11. Dr.Jones

    Driver that always turns on in strobe

    A programmable driver can help, e.g. lucidrv (google). PM me if you want one.
  12. Dr.Jones

    Dedomed LED in an optic?

    Yes, dedoming increases throw with reflectors, TIRs, recoil reflectors and aspherics.
  13. Dr.Jones

    Sold/Expired Tri-EDC Light Engine Upgrade with Programmable Driver

    Do you mean flashing a better firmware into a NANJG105C or similar? I can do that (e.g. lucidrv).
  14. Dr.Jones

    Z41 Smart Switch

    Isn't the AW driver supposed to do RMS voltage regulation? That would imply a voltage drop.
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