I have been staying in Tarntawan until a few days ago.
Lots of ATM machines in the neighbourhood. They all charge 200 baht for the transaction.
ATM suggests you to book the transaction in euro (my currency) but I decline that.
What I always do when travelling abroad : I go to TravelEx in my home airport, buy 200 euro foreign currency with a buyback guarantee after returning home. This costs me 5 euro. Rate is crappy, but I always give the cash back at the end, so it costs me 5 euro but i never have to look for cash immediately upon arrival.