i hav made the pic lcf meter using 16f628A, but when i turned on the meter,only one line of rectangular boxes is appearing on lcd (i.e noting changed) & nothing happening.. i have checked all the connection which are alright..
i have a doubt abt my 3.2768 crystal, which was not available and i found it by chance. the value on the crystal is written as : ECS v 3.27 - 17 ,,, ..what do u think ???
hi,
I cannot identify the crystal from that number.
A common problem with LCD's....
is the R/W pin connected to 0V.?
do you have a contrast pot on the LCD.?