1602 (16x2) LCD Display with I2C/IIC interface

Product Description The 1602 LCD with I2C Interface is a 16-character by 2-line alphanumeric display that significantly simplifies the wiring process for your microcontroller projects. By integrating a PCF8574 I2C adapter on the back, the display reduces the required connection pins from 16 down to just 4 (VCC, GND, SDA, and SCL). It features a vibrant blue backlight with high-contrast white text, making it perfect for displaying sensor data, system status, or user menus in robotics and automation systems.

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Key Features

• 4-Wire Connectivity: Uses the I2C serial bus to save valuable I/O pins on your Arduino or ESP32 for other sensors and actuators.

• Onboard Contrast Control: Includes a built-in blue potentiometer on the I2C backpack for quick and easy screen clarity adjustments.

• Software Controllable Backlight: The backlight can be toggled on or off via code to save power in battery-operated applications.

• Plug-and-Play Compatibility: Supported by the widely used LiquidCrystal_I2C library, allowing for quick setup and custom character support.

• Pre-Soldered Header: Comes with the I2C daughterboard already soldered to the LCD, eliminating the need for complex manual wiring.

Technical Details

• Display Technology: STN (Super-Twisted Nematic) Blue Negative Transflective LCD.

• Resolution: 16 columns and 2 rows, capable of displaying up to 32 characters simultaneously.

• I2C Adapter IC: PCF8574 allows for up to 8 similar displays on the same bus by changing the address jumpers (A0, A1, A2).

• Current Consumption: Typically 1.2mA without backlight and up to 40mA with the backlight fully powered.

• Character Matrix: Each character is formed by a 5x8 pixel dot matrix for clear alphanumeric rendering.

• Duty Cycle: 1/16 duty and 1/5 bias for optimal pixel response and contrast.

• Logic Compatibility: While designed for 5V, the I2C interface often works with 3.3V logic (ESP32/Raspberry Pi) as long as the VCC is 5V.

• Viewing Angle: Wide 6 o'clock viewing angle ensures visibility from various mounting positions.

• Operating Frequency: Internal oscillator frequency of 270kHz for rapid screen updates.

• Instruction Set: Fully compatible with the standard Hitachi HD44780 instruction set.

• Reliability: Rated for over 50,000 hours of backlight life under normal operating conditions.

• Mounting: Features four 3mm mounting holes at the corners for secure installation into enclosures.

• Communication Speed: Supports Standard Mode I2C (100 kbit/s) communication.

• Internal Buffer: Includes DDRAM (Display Data RAM) and CGROM (Character Generator ROM) for standard ASCII characters.

• User-Defined Characters: Allows for up to 8 custom-designed icons or symbols (CGRAM).