[ericmcdaniel]

Introduces the redesign of the LumenLab PCB after review of the original design. The original PCB had a few electrical errors that prevented the LumenLab from achieving it's potential. All of the issues were evaluated and resolved, and new functionality such as storage space and modularity has been added.

Technical Details

• The original LumenLab (v1) had speakers that emitted a humming sound. The issue ended up a cap incorrectly placed in series, but this lead to replacing the amplifier with I2S digital audio.
• A MicroSD card reader has been added to store media files such as sound. The original v1 was originally going to generate sound, but with the SD card reader, audio files can be made instead of on-demand generation. This includes background game music as well as sound effects
• Sections of the system were broken into modules, allowing for the system to be modular. Potentiometers, displays, power supply, etc, no longer need to be mounted directly on the PCB. The PCB offers JST XH connectors so that the panel-mounted components can be plugged in and unplugged. This adds a lot of convenience for easier maintenance.
• The 0.96" OLED (128x64) was replaced with a 1.9" IPS TFT LCD Screen (320x170), which can have more sophisticated graphics saved on the MicroSD card.