The holographic lamp is a wood-based lasercut acrylic lamp that can change the color based on the audio input. The major frequency of the audio is extract in real-time using Fast Fourier Tranform and gets mapped on the hue of HSB color of the LEDs. The lamp can also operates in RGB mode where the color of the lamp can be changed by the three knobs, or in Rainbow mode where color of lamp changes gradually in a rainbow pattern.
The base is made with 1/8'' wood sheet: lasercut into shape, sanded to mate the hexagon edges and painted. The micro controller used for controlling the LEDs as well as serial communication is a Teensy 3.2. The LEDs used in the design is a NeoPixel Stick from Adafruit. The software is developed in openFrameworks. The FFT implemented in this project is based on ofxFft library. Software implementation can be found here.