Hello all!
I have been working on an idea in which pedestals on a stage each contain a device which outputs continuous audio, i.e. an environmental sound machine or chant box plugged in to a small amp. The volume is controlled via an optocoupler (AKA vactrol - consisting of an LED/LDR pair). The LED brightness is controlled by a PWM pin on an embedded ATMEGA328 microcontroller. The desired effect is that as a dancer moves closer to the pedestal, the audio level increases. I have it working...
Range finder for dancers
I have been working on an idea in which pedestals on a stage each contain a device which outputs continuous audio, i.e. an environmental sound machine or chant box plugged in to a small amp. The volume is controlled via an optocoupler (AKA vactrol - consisting of an LED/LDR pair). The LED brightness is controlled by a PWM pin on an embedded ATMEGA328 microcontroller. The desired effect is that as a dancer moves closer to the pedestal, the audio level increases. I have it working...
Range finder for dancers