SBK BarDriveMAX 28

MAX7219 Backpack Driver for BL28-3005Sx04Y Bar Meter Displays

The SBK BarDriveMAX 28 is a compact LED bar meter driver board designed to power the BL28-3005SA04Y (common-anode) or BL28-3005SK04Y (common-cathode) 28-segment matrix bar displays using the reliable MAX7219 LED driver IC.

✅ This driver is designed to pair with the SBK BarMeter SA28/SK28 display board, sold separately.

📦 Also available as pre-soldered bundles : SBK BarDriveMAX 28 + SBK BarMeter Sx28 – With MAX7219 SPI driver

💡 Features

• 🧠 Powered by MAX7219 – industry-standard 8x8 LED matrix driver with SPI interface
• 🧱 Backpack format mounts directly to BL28-3005Sx04Y matrix bargraph modules
• 🧩 Ideal for linear LED bar indicators, signal meters, animations, and more
• ⚡ SPI-compatible serial interface – just 3 wires to control up to 64 LEDs
• 🔄 Daisy-chainable for longer bar meters or complex multi-module displays
• 🌟 Adjustable brightness via digital control or RSET resistor
• 🔌 Include a 27KOhms Iset resistor for current control
• 💤 Low-power shutdown mode

🛠️ Specifications

• 📦 Form Factor: Backpack for 28-segment BL28-3005Sx04Y displays
• 🔌 Power: 5V DC supply
• 🎮 Interface: SPI (DIN, CLK, LOAD/CS)
• ⚙️ Driver IC: MAX7219
• ⚠️ Compatible with both display types: SA = Common Anode, SK = Common Cathode

📚 Resources

• Compatible with the SBK_BarDrive Arduino library for easy animations and control.
• Full schematic and 3D model available for DIY and customization.

🧰 Ideal For:

• DIY electronics projects
• Audio level meters
• Scientific or industrial panel meters
• Retro-futuristic prop displays
• Embedded systems with visual feedback

📦 What’s Included

• 1× SBK BarMeterMAX 28 V1 PCB (assembled)
• (Optional) Pin headers (unsoldered or soldered)
• (Optional) 5 pins JST-XH terminals (unsoldered or soldered)

🛒 Notes

• SBK BarMeter SA28/SK28 board and bar meter display are not included
• Designed for hobbyists, engineers, and makers looking to simplify LED bargraph control
• Fully compatible with 5V Arduino boards (e.g., Uno, Nano)

💬 Questions or suggestions? We’re makers too — feel free to reach out!

🔗 Visit Smart Builds & Kits for documentation, firmware examples, and more!