Trading strategy entry signal brainstorm

Ok Friends so i am building a professional EA.I need you guys to provide me some ideas of entry signals, or give me tested and working techniques with good entry signals.I do not need the exit since i`ll base those on my advanced money management strategy.

I have just 3 requirements:
The entry signals should be based on indicators only It should be a section of an already established techniques (preferably hybrid or mechanic), not some no-name,unknown and amateur one The technique should be based on timeframes less than 1 hour (5 min , 10min ,15 min and 30 min max)