Nick_Pyner:
I'm not sure an HC-05 is such a good idea for a rc boat - unless you keep it on a small and shallow pond. It's range is about 10m, so you might easily wander off, and the next landfall is Takoradi Roads. I have strong doubts about using bluetooth at all but, if you must, and you have a BT4 phone, an HM-10 is a rather better choice.
Hi Nick_Pyne,
I ever made an RC car using HC-05 bluetooth and it's running quite well in my room so that the distance is not the big matter. But I can only connect to Android phone and not successfully with iPhone.
Is it possible to connect HC-05 to iPhone?
Thanks,