Description

The Kappa3750Rasp is an evaluation board for the IS3750 Addressable LED Controller chip. It allows engineers to easily evaluate *the IS3750 without needing to solder or develop a custom prototype, offering a convenient, ready-to-use solution. The board includes *36 WS2813 RGB LEDs.

Designed as a shield using the Raspberry Pi form factor, the Kappa3750Rasp takes advantage of its wide adoption, ensuring compatibility with various SBC boards (SBC is not included in this product).

The IS3750 is an ideal solution for meeting addressable LED protocol timing constraints. It reduces CPU load and eliminates the need for dedicated GPIOs by operating over the I2C interface.

How It Works

The core of the shield is the IS3750 Addressable LED Controller Chip. Its I2C pins are routed directly to the Raspberry Pi's I2C interface. So, by simply plugging the shield into your SBC, it connects seamlessly to its I2C serial interface.

The board includes I2C pull-up resistors, so you don’t need to add them externally. Also, a jumper lets you select the appropriate I2C speed.

The *LED output pin *of the IS3750 is connected to a voltage level shifter to ensure a proper 5V signal level, since the chip itself operates at 3.3V.

Controlling the LEDs is super easy. The IS3750 uses an internal memory map:

• Registers 0x001, 0x002, and 0x003 *control the RGB values of the *first LED.

• Registers 0x004, 0x005, and 0x006 *control the *second LED, and so on.

Think of it like writing to EEPROM—except instead of storing data, you’re writing colors!

Examples and Documentation

This Evaluation Board (Kappa3750Rasp)

• 📄 User Manual
• 🧩 Module Schematic

Addressable LED Controller Chip (IS3750) used in this Evaluation Board

• 📄 Datasheet
• 📘 Online Wiki
  

Firmware Example Projects

• 👉 IS3750 Code Example for Raspberry Pi

Questions?

💬 Contact us anytime for support.

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This company and the products provided herein are developed independently and are not affiliated with, endorsed by, or associated with any official protocol or standardization entity. All trademarks, names, and references to specific protocols remain the property of their respective owners.

We ship all products from Barcelona via Correos within 1 to 3 business days, with a tracking number.

Delivery usually takes a few days to a week within Europe, and around one week for the rest of the world.