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6 of 7 articles

Interfacing LCD

16x2 Character LCD 4-bit mode.

Mohith N
Updated: 19 March 2026
5 min read
#Embedded Systems

LCD Interfacing Quiz

Test your understanding of 16x2 character LCD interfacing in 4-bit mode.

Question 1 of 3

Q1.When interfacing a 16x2 LCD in 4-bit mode, how many GPIO pins of the microcontroller are minimally required to drive the LCD (excluding backlight)?

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