Project 34 · Sensor Catalog (Vol III)

16x2 Character LCD (parallel)

Master parallel communication by building a high-contrast 16-character digital dashboard.

Advanced 75 min 6 components
16x2 Character LCD (parallel) wiring diagram

What you'll learn

  • Understand the difference between Command and Data modes in parallel communication.
  • Implement 4-bit data bus wiring to minimize microcontroller pin usage.
  • Adjust analog voltage bias using a potentiometer to control display contrast.
  • Utilize the LiquidCrystal library to manage cursor positioning and string output.

What's in the kit

  • Arduino UNO R3
  • 16x2 Character LCD (HD44780 compatible)
  • 10k ohm Potentiometer
  • 220 ohm Resistor
  • Breadboard (Full size)
  • Jumper Wires (M-M) pack

Protocol: parallel