KM-64 ROYGBIV — Premium, Seamlessly Tileable 8x8 RGB LED Matrix

Bring your retro-computing projects, custom displays, and hardware prototypes to life with the KM-64 ROYGBIV (Rev. 1.0). Proudly Designed in Italy, this high-density 8x8 RGB LED matrix module effortlessly combines robust industrial engineering with a clean, striking aesthetic.

Whether you are building a standalone visual indicator, replicating classic hardware layouts, or tiling multiple units together to form a massive custom LED wall, the KM-64 ROYGBIV delivers flawless performance and perfect alignment without the "pixel bleeding" typical of cheap, monoblock alternatives.

Key Technical & Design Features

• Seamlessly Tileable Architecture: Engineered with a compact, square form factor (approx. 5x5 cm / 1900 mil) and edge-to-edge spacing. You can perfectly align multiple modules side-by-side or stack them vertically to create scalable, gapless retro-displays or scrolling message boards.
• 64-LED High-Intensity Array: Features 64 precision-spaced, 5mm diffused cylindrical RGB LEDs that guarantee smooth color blending, excellent contrast, and wide viewing angles.
• Common Cathode Matrix Design: Organized into an efficient multiplexed grid utilizing 8 dedicated cathode lines (K1–K8) mapped across Red (R1–R8), Green (G1–G8), and Blue (B1–B8) anode channels for absolute pixel control.
• Integrated Protective Backing Frame: The bottom assembly features a precision-fitted, custom black frame designed to shield the delicate solder joints and internal routing from mechanical stress and accidental electrical shorts.
• Solid Brass Interface Pins: Equipped with heavy-duty, custom-pinned brass interface contacts on the reverse side, ensuring rock-solid electrical conductivity, low contact resistance, and long-term durability.
• Clear Silkscreen Pin Mapping: The back of the PCB features crisp, detailed labeling for every single pin, making manual wiring, debugging, and microcontroller integration incredibly straightforward.

Optoelectronic & Electrical Specifications

Every single RGB LED in the 8x8 array is engineered for consistent brightness and color purity under multiplexed drive conditions:

• Architecture: Common Cathode matrix configuration.
• Maximum Operating Current: 20mA maximum per color channel under PWM (Pulse Width Modulation) control.
• Red (R) Channel: Wavelength: 620 – 625 nm | Forward Voltage (VF): 1.8 – 2.0 V
• Green (G) Channel: Wavelength: 515 – 525 nm | Forward Voltage (VF): 3.2 – 3.4 V
• Blue (B) Channel: Wavelength: 464 – 475 nm | Forward Voltage (VF): 3.2 – 3.4 V

Available Options

• Full DIY Kit: Includes the high-quality KM-64 PCB, 64 diffused 5mm RGB LEDs, 32 solid brass pins, and the custom protective backing frame. Perfect for makers who want the full assembly experience.
• Fully Assembled & Tested : Ready out of the box. Every single component is hand-soldered with geometric precision, fully cleaned, and rigorously tested to meet industrial standards before shipping.

Shipping via courier could not be possible in some very rare cases and therefore it will be replaced with other shipping method unconditionally (usually via registered mail).