I am intending on using muscle wire and driving t from grove and arduino. https://core-electronics.com.au/muscle-wire-0-005-diameter-1-foot.html However, the grove is not going to have enough current drive to run this, so we will need a driver to increase current to drive wire, probably with a separate battery. Do you have anything like that that plugs directly to grove?
You will likely need to use a relay to power the wire. Grove has a relay that connects directly:
You could use an external power supply of any sort really, you would put your power to the wire through the relay. Be careful to only trigger for short bursts, I’m not sure what type of power supply would be safest. Probably stay small.
I hope that helps!