TriggerTrap App & Hardware

Ummm, there isn't a Triggertrap V2.  There is a V1 (based on the Arduino), and I've used it with both my E-5 and E-P2 (you do need to get appropriate cables including 2.5mm to 3.5mm adapters).  Then there are Android and IOS versions of TriggerTrap Mobile.  I can verify that TriggerTrap Mobile doesn't work with the original dongle on a Galaxy S II, and I need to get the new dongle.

I would suggest going to their support site and ask, giving exactly what versions of TriggerTrap you have, and what cables you are using.  The site is: https://getsatisfaction.com/triggertrap