There are two diffrent hex.files in project -
1) ir.hex : it is for proteus simulation it will not work proper
in 16*1 lcd if u use 16*2 or more then it is ok
2) 2051.hex : this is a real hex file that u has to burn in 2051
microcontroller with lcd 16*1 if u want to use other then it also work.
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