hello friends, I found a problem when I was working on my project on the arduino nano, a project related to the i2c lcd or porteble scan tool, I created an arduino program up to a file size of 36kb then when I wanted to lock or lock my arduino bit so that it could not be cloned there was a problem on the lcd sometimes random characters appeared and sometimes damaged text appeared, how do I solve this? if not locked it is fine and there are no problems on the lcd such as random or damaged text.
The maximum program size on Arduino Nano is 32768 bytes/ What is your board?
Are you asking about the board and chip? If so, I'm using arduino nano with atmega328p chip.
So you can't upload 36kB firmware to it
About the issue - could you show what fuse values do you use with locked and unlocked state?
this is an example of a photo from the internet but what I changed was only the lock bit if I changed some other than the lock bit it actually made the performance of my code very slow
Please show an exact values that you used when uploading the firmware.
Please explain the procedure how did you do it.