The Nokia 5110 LCD Module is an 8448 pixel monochrome graphic display highly popular among hobbyists for its low cost, extreme power efficiency, and ease of use with microcontrollers like Arduino. Originally used in classic Nokia 5110 mobile phones, these surplus screens are now commonly mounted on breakout PCBs with integrated backlights.Technical Specifications

• Resolution: 84 48 pixels (can display up to 4 lines of text).
• Driver Chip: Philips PCD8544 CMOS LCD controller.
• Interface: Serial SPI-like protocol.
• Operating Voltage: 2.7V to 3.3V for both logic and power. (Note: Connecting 5V logic directly from an Arduino Uno can damage the driver over time without logic level shifters or current-limiting resistors).
• Current Draw: Less than 200A during active use (without backlight), making it exceptional for battery-powered projects.
• Backlight: Typically 4 built-in blue or white LEDs.

Pinout ConfigurationMost breakout modules break out 8 interface pins:

• RST: Reset pin.
• CE / SCE: Chip Enable (Active LOW).
• DC: Data / Command selection.
• DIN / MOSI: Serial data input.
• CLK: Serial clock line.
• VCC: Power supply (2.7V – 3.3V).
• LIGHT / LED: Backlight control (ground or power depending on the specific module version).
• GND: Ground connection.

Software & ImplementationTo get started using Arduino, you can easily control the display using widely supported libraries:

• Adafruit PCD8544 Nokia 5110 LCD library: Excellent for drawing shapes, lines, and custom text.