Serial Print Not Displaying

good morning.

i new using arduino. aim have programme display time on lcd , trigger events each second, minute , hour.

i have built working lcd clock using guide instructables , trying include trigger events. found code guide , have merged two.

the new programme compiles , loads correctly, not appear execute. display continues operate correctly, when open serial monitor, nothing shows in it. wish use monitor check time , monitor events try create them.

i have posted code in attachment: able suggest quite have gone wrong? serial print section @ end of code.

thank you.

james



 

where in program call trigger_led() function ?

code: [select]

digitalwrite(99, high);
how many digital pins arduino have ?

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