light mixing kit wanted

DMX controllers are available for stage lighting which do just that. Using a
3 color lamp, the spectrum can be changed with a single control, and there
are usually others for overall intensity, effects etc.

MrT.

"Rick Measham"



** Likely employed bags of high intensity  R G & B  LEDs  and lots of  PWM
technology to drive them.

 Cost a bomb to make.

  Kits ?

  LOL




......   Phil

Rick,
     Depending on weather you want just the light out or if you want to
drive 240V lamps, please let us know.

I you just want the light that can be controlled then an LED solution
would be simplest, a small PIC chip or similar microcontroller and the
knob would be a rotary encoder. Like a pot that turns forever, but with
2 digital outputs.

The LED's can be PWM controlled directly or by transistors depending on
how much light is required, the whole lot can be powered from a nice
safe 5V power supply.

If you want to drive 240V lamps then the microcontroller would need to
drive TRIAC devices to switch the mains with phase angle dimming
control. A more complex solution and with mains wiring involved.

So I guess the question is, how much light do you want to control?

Regards,
        Brenden Ede


Rick Measham wrote:

could be done using a small microcontroller (+associated hardware) three LEDS
(or an RGB LED) and a rotation encoder (eg one axis from an old ball-mouse,
or the wheel from a more recent model)

I don't know of any kits, the program wouldn't be way hard.

this sort of thing is real easy on a computer screen.

Bye.
   Jasen