What happens if a code that sometimes work and sometime does not? How do you fix it? :(
Thanks for you guys who helpped me with my downloading the code prolem. It turns out that I did know that you push down the black botton while downloading the information to the board. :-[ /;D
As above, posting code is the good thing.
Biggest failures, in no particular order -- not initializing a variable before using it; not having pull up (down) resistors on inputs; writing beyond string / array bounds; off-by-1 loops; writing huge masses of code, all untested (do write and test indvidual functions); input values from I/O or external code outside of safe / expected range; hmm shall I go on?