Hi! Brand new to the forum, and fairly new to Arduino.
We're working though a simple hand model that uses flexinol wires to contract the fingers. Want to run it off the Arduino to write some code for it rather than using the kit controller. Anyway....when we feed power through the 3.3v or 5v connection, we get instant results. When we run it off a digital port, running, something simple like a blink sketch, we get nothing, or just a little bit of almost invisible twitching....any ideas about what might be going on much appreciated!