A classic 16×2 character LCD running at 3.3V, with a yellow LED backlight and black characters on a green background. Uses the industry-standard ST7066/HD44780 parallel interface — library support is available for virtually every microcontroller platform, making it straightforward to integrate into 3.3V projects.

Requires approximately 11 general I/O pins for the parallel interface.

Specifications

• Display – 16 characters × 2 lines
• Operating Voltage – 3.3V
• Backlight – Yellow LED
• Character Format – 5×8 dot matrix
• Controller – ST7066 (HD44780 compatible)
• Interface – Parallel (requires ~11 I/O pins)
• Duty Cycle – 1/16
• Dimensions – 80 × 36 × 8.6mm (3.2 × 1.4 × 0.34")

Ideal For

• 3.3V microcontroller projects needing a text display
• Displaying sensor readings, status messages, and menus
• Raspberry Pi, mbed, and other 3.3V platform builds

Resources

• LCD Datasheet (PDF)
• ST7066 Controller Datasheet (PDF)
• mbed Example Code
• Character Generator (ZIP)