Barcode reader Problem ?

[iugmoh]

Hi iugmoh,
7805 is a 1 amp regulator, if you exceed 1 amp it gets hot and ... also is your 12v supply big enough to supply everything? Have you disabled brown out detect in your config fuses?

thanks Joe ,
Oky I solve this problem by adding a seperate volatage supply only for barcode reader and it's working fine.

but what do you mean by "Have you disabled brown out detect in your config fuses"