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The LCD Display 16x2 Character Module (HD44780) displays two lines of sixteen alphanumeric characters. Under a 5V supply, the 5x8 dot matrix renders text for embedded projects. With a 1mA draw, this module fits battery-powered systems without exhausting the power source.
Key Features
- Dual Interface Modes: Supports 4-bit and 8-bit parallel data transfer. Using 4-bit mode saves four GPIO pins for other components.
- Manual Contrast Control: Pin 3 on the 16x2 LCD pinout accepts potentiometer input. Adjusts character visibility against the green backlight for high-glare environments.
- Thermal Tolerance: Operational range spans -20°C to 70°C. Screen clarity remains stable despite high humidity during long-term operations.
- Low Current Consumption: Draws 1mA under typical operating conditions. Preserves battery life in portable 16x2 LCD display projects.
Frequently Asked Questions
Can I use 16x2 LCD with Arduino Uno?
Yes, the LiquidCrystal library manages the six-pin parallel connection. This 1602 LCD module Arduino setup mounts to standard breadboards for rapid circuit prototyping.
What is the I2C address for 16x2 LCD?
This parallel version has no I2C address. Adding a PCF8574 backpack provides two-wire I2C communication.
