What sensor I shall use so that what I am telling can be seen in display?

I want to show or display what I am telling like "Hello World".I want to display it in lcd module.I am using Arduino Mega 2560.

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iceng1 month ago

Ok, so you must break all 8 bit data into two 4 bit codes by shifting a word=8 bits four times to the right and strobe each when lined up...

You still need to send the initialize codes a 4 bit command code and a clear screen code before you send H=48 hex=> strobe in 1000 bin then shift right four times or swap nibbles and strobe 0100 bin now ready E=45h=> strobe in 0101 bin swap nibbles and strobe in 0100 bin etc etc L, L, O, space=20 hex .... You get the idea ??

DIPUK1 (author) 1 month ago

a 4 bit input

Are you talking about text or voice recognition?
The later won't work on simple 8 bit processors.

DIPUK1 (author)  Downunder35m1 month ago

voice recognition.

iceng1 month ago

What LCD are you using ?

A serial input ?

An 8 bit input ?

Or a 4 bit input ?