Time: each potentiometer controls a delay variable for the flashing LED. Brightness: each potentiometer controls the brightness level of the corresponding LED. LED: 4 LEDs used to display the brightness and timing of the corresponding internal LED. Switch: used to trigger 1 of 4 code loops or other definable code presets. Volume: each potentiometer controls the volume level for the corresponding optical theremin circuit. Tone: each potentiometer increases or decreases the pitch relative to the light input of the optical theremin circuit. Volume: one potentiometer to control the overall volume of the mixed audio output. On/off: switch to turn off power to optical theremin circuits, etc. Audio output: (4) 1/4" mono jack one for each of the optical theremin circuits. Output: (1) 1/4" mono jack for mixed audio output. Other input/output: USB for powering and altering Arduino code, reset button for Arduino, power jack?, and etc?.Simple mixer circuit for mixing audio output from each optical theremin circuit.
ePanorama.net: Simple two line output combiner
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