The DFRobot RGB LCD Backlight Module (DFR0464) is a 16×2 character LCD with a fully programmable RGB backlight, connected via I2C for minimal wiring. Using just two wires (SDA + SCL), it displays text and numeric data while allowing you to set any backlight color for status indication — red for warnings, green for OK, blue for standby. Compatible with Arduino, Raspberry Pi, and any I2C-capable microcontroller. Specifications Model: DFR0464 Display Size: 16x2 character LCD Backlight: RGB programmable via I2C Interface: I2C (Gravity compatible) I2C Addresses: Default 0x60 (backlight) + 0x3E (LCD) Operating Voltage: 5V DC Backlight Colors: Full RGB (16.7 million colors) Character Set: English, Japanese, and custom characters (up to 8 glyphs) Compatibility: Arduino, Raspberry Pi, ESP32, micro:bit (with I2C) Key Features 16x2 character LCD with programmable RGB backlight — customize color for any project context I2C interface reduces wiring to just 4 wires (VCC, GND, SDA, SCL) Full 24-bit RGB backlight control — set any color to match UI or alert states Display text, numbers, sensor readings, and custom characters Compatible with DFRobot, Adafruit, and Arduino LCD I2C libraries Gravity connector for tool-free connection to DFRobot boards Software contrast adjustment — no potentiometer needed Supports custom user-defined characters (up to 8 custom glyphs) Applications STEM project UI display — sensor values, status text, menus Arduino and Raspberry Pi HMI displays Color-coded alert panels (green = OK, red = alarm) IoT device local status displays Robotics project live telemetry Weather station, clock, and environmental monitor displays Industrial control panel prototyping Battery status and system information dashboards Package Includes 1x DFRobot RGB LCD Backlight Module (DFR0464) Note: Gravity/I2C cable may be included — verify in shipment. Microcontroller sold separately. FAQ Q: Can I set the backlight to any color? A: Yes — 24-bit RGB (0–255 for R, G, B) gives 16.7 million colors. Q: Does it work with Raspberry Pi? A: Yes — use Python with smbus2 or DFRobot's Raspberry Pi library on GitHub. Q: Can multiple LCD modules share the same I2C bus? A: Only if they have different I2C addresses. Check DFRobot wiki for address configuration. Q: Is it compatible with standard LiquidCrystal_I2C library? A: Partially — DFRobot provides its own library for full RGB backlight control. Q: How do I create custom characters? A: Define a 5x8 pixel bitmap array and use createChar() in the DFRobot LCD library.
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