I am using an HC_05 Bluetooth module and an Arduino Uno to try and set up a simple bluetooth connection with my Windows Phone (HTC 8X). I am following the online tutorial here.
When I go into settings, my phone sees the "HC_05" bluetooth signal. I click on it, and it connects right away. It stays connected for 5-10 seconds, then suddenly disconnects.
I am thinking that my phone is not receiving any data from the bluetooth module, and thus deciding that the signal is worthless, and dropping it. But even if that, why? When I call
btSerial.read() from the linked code, isn't that talking to the device?
I'm have tried directing RX/TX directly into 0/1 on the UNO, with a voltage divider, into ports 10/11, redirecting the power to 3.3V, all show the same problem of not holding a bluetooth connection with either my phone or computer.