PCB v2.0 Feature List

[dgorbunov]

• Separate, low profile, extension board connected to SmartLED Shield via ribbon cable

• Extension board sits atop backside lip of LED Matrix, spans entire height of one matrix

• Adhesive/glue to LED Matrix, holes to interface with threads on edge of LED Matrix

• Potential separate header board for cable attached to SmartLED Shield

• All I/O moved to side of the board for accessibility with I/O shield

• Buttons, pots are SMD and side-facing

• 3D Printed enclosure with holes for matrix extensions and I/O shield

• Use all SMD Components:

• SOIC-8 package for ICs (MSGEQ7, Amps)

• SMD resistors/capacitors

• MAX9814 Chip for Mic Amp w/ AGC

• AGC chip for line input

• Dual RCA + 3.5mm input/output

• Cheaper component sourcing; black pcb

• Potentially remove input switch, detect if line input circuit is closed to use mic

• Maximize component compatibility during chip shortage - MSGEQ7, LM358, Teensy4.0 out of stock

[dgorbunov]

Known issues with v1.0 design:

• Voltage test headers (if soldered) interfere with the USB port.
• TP1/TP2 need to be placed at input
• Poor mechanical stability without adhering the board
• Button and potentiometer are on backside of board
• Potentiometer part very large
• Switches are two different parts, very expensive.