L.A.M.P. Multipurpose LED Panel

L.A.M.P. Is a multipurpose LED Panel that features:

• Adjustable light output
  • Dimmable color (RGB)
  • Dimmable white light of 3 temperatures (2700K, 4000K, 6000K)
• Chainable panels, each individually addressable
• Wide input voltage range (10V - 30V)
• High Efficiency switch mode LED drivers
• USB connectivity for PC control and scripting

This project was designed with three applications in mind:

• Photography lighting
• Smart Desktop lighting
• Grow lighting for plants

L.A.M.P. Construction:

L.A.M.P. is constructed from 3 PCBs: the front panel PCB, controller PCB, and the LED panel PCB.

The front PCB serves as a legend for the controls on the controller PCB. It uses copper pours and solder mask to create a backlit effect.

The controller PCB (below) has knobs and buttons for controlling the device. The state of these inputs is read by a microcontroller (Atmega32u4) which updates the color values to the LED panel/panels. This board also has USB connectivity for programming and communication.

The LED panel (below) receives signals from the controller to determine the brightness of each LED. It uses a buck type LED driver for each white LED color channel. For the RGB LEDs, WS2012 LEDs are used. These run on 5V so an additional buck converter is used to regulate the input supply to this voltage. Multiple of these panels can be chained together to make an array of individually addressable light sources.

3D Printing:

To complete the assembly spacers and a diffuser were designed and 3D printed