Which pin of the LCD is used for adjusting its contrast?
A. pin no 1
B. pin no 2
C. pin no 3
D. pin no 4
Answer:A
Which pin of the LCD is used for adjusting its contrast?
A. pin no 1 B. pin no 2 C. pin no 3 D. pin no 4
Explanation: Pin no 3 is used for controlling the contrast of the LCD.