Escuta
Member
Hello,
I'm using miniature 12V, 1-1.5W spotlights inside a diorama. They're dimmable and I'm controlling them with the GPIO pins of a Raspberry Pi computer and simple circuitry. I believe that the response of the LEDs is linear and the intensity is adjusted with values ranging from 0 to 255. My issue is that I'm only using a range of 0 to 10 to illuminate the scenery, perhaps I'll go a little higher. I have no experience with lighting but I imagine that some kind of neutral density filter in front of the spots might help me use the full dynamic range of the intensity control.
Could someone please suggest what kind of filters I might use; ones that won't affect the tight focus of the beams? Cheap solutions most welcome!
If anyone's interested - the lights I'm using are these: tinyurl.com/yey53wmv and the circuitry and software to control them is the same as for these 5050 LED strips: https://dordnung.de/raspberrypi-ledstrip
I'm also using a new open source OSC-based show-control software called OSSIA Score. See: https://ossia.io/score/about.html
I talk about getting the RGB LED strips working in the later posts in the following forum thread: https://forum.ossia.io/t/controlling-led-strips-with-score-and-a-raspberry-pi/212
Thanks!
I'm using miniature 12V, 1-1.5W spotlights inside a diorama. They're dimmable and I'm controlling them with the GPIO pins of a Raspberry Pi computer and simple circuitry. I believe that the response of the LEDs is linear and the intensity is adjusted with values ranging from 0 to 255. My issue is that I'm only using a range of 0 to 10 to illuminate the scenery, perhaps I'll go a little higher. I have no experience with lighting but I imagine that some kind of neutral density filter in front of the spots might help me use the full dynamic range of the intensity control.
Could someone please suggest what kind of filters I might use; ones that won't affect the tight focus of the beams? Cheap solutions most welcome!
If anyone's interested - the lights I'm using are these: tinyurl.com/yey53wmv and the circuitry and software to control them is the same as for these 5050 LED strips: https://dordnung.de/raspberrypi-ledstrip
I'm also using a new open source OSC-based show-control software called OSSIA Score. See: https://ossia.io/score/about.html
I talk about getting the RGB LED strips working in the later posts in the following forum thread: https://forum.ossia.io/t/controlling-led-strips-with-score-and-a-raspberry-pi/212
Thanks!