Hey everyone I'm looking for a cheap standalone bluetooth module, just something that when my phone get near it and connects the module should output a small HIGH signal so that I can activate a small transistor. I have no clue what kind of module I need for this so some help would really help.
I have found this module HC-05 bluetooth, it has a STATE pin that goes HIGH when BT is paired (usually for an LED light) but would this module work if I just connect power to it? Would I be able to connect my phone to it without having the TX and RX connected to anything?
I have found this module HC-05 bluetooth, it has a STATE pin that goes HIGH when BT is paired (usually for an LED light) but would this module work if I just connect power to it? Would I be able to connect my phone to it without having the TX and RX connected to anything?
![HC-05_FC-114__HC-06_FC-114_001_1600.jpg](/forums/proxy.php?image=http%3A%2F%2Fwww.martyncurrey.com%2Fwp-content%2Fuploads%2F2015%2F08%2FHC-05_FC-114__HC-06_FC-114_001_1600.jpg&hash=0f28aa7c2d2f9e5d6e5e727058d82ee5)