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When the LCD operates in the 4 bit mode, then what more commands are added to it?

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+1 vote
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in Microcontroller by (14.6k points)
When the LCD operates in the 4 bit mode, then what more commands are added to it?

(a) 33

(b) 32

(c) 28

(d) all of the mentioned

The question was posed to me in exam.

This intriguing question originated from LCD  Interfacing in division AVR Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Right option is (d) all of the mentioned

The best explanation: When an LCD operates in the 4 bit mode than 33, 32, 28 in hex are sent to it. They represent 3, 3, 3, 2 nibbles which tell the LCD to do into the 4 bit mode for saving the i/o pins of the port.

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