I recently got this blue tooth device http://www.amazon.com/Ventisonic%C2%AE-Wireless-Bluetooth-Transceiver-Arduino/dp/B00K3C3E7Q/ref=sr_1_1?ie=UTF8&qid=1408813439&sr=8-1&keywords=Ventisonic%C2%AE+Wireless+Bluetooth+RF+Transceiver+Module+serial+RS232+HC-06+for+Arduino+TTL to try to communicate with a Windows 8.1 computer via a blue tooth dongle.
The computer can see the blue tooth signal and connect to it but after a moment it says Not Connected! The light on the blue tooth device never changes from blinking a few times a second except at the very moment I send it an AT command.
I had the blue tooth device connected to the 5v pin on the Arduino Uno before I saw one of the reviews said it was a 3.3v device. How likely or unlikely is it that the 5v dameged the blue tooth? And how would I test if it was damaged or not?
I am also able to use AT commands through the arduino and get a reply back from the blue tooth.
My circuit is: Vcc to 3.3v Gnd to Gnd Tx to Rx Rx to Tx
using wire jumpers.
I have tried using a 9v battery to the Vin pin and (when sending AT commands) a USB cable without the 9v battery.