I'm new to arduino and electronics so please bare with me.
I've been trying to enter AT mode with a HC-05 bluetooth module (http://www.ebay.ca/itm/180957186752?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
). This is what I did;
1. I used a USB to Serial adaptor (http://www.ebay.ca/itm/170910289160?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
2. Connected TX bluetooth to RX adaptor, RX bluetooth to TX adaptor (Via a voltage regulator http://www.instructables.com/id/Cheap-2-Way-Bluetooth-Connection-Between-Arduino-a/step3/Wiring-the-Arduino-Bluetooth-transceiver/
3. Connected power (3.3v) and ground (I used a voltage regulator to bring the 5v from the adaptor down to 3.3v).
4. Then I connected pin 34 bluetooth (PIO11) to 3.3v (To make the pin go high).
5. Opened PuTTY and set it to Serial mode. Used COM8 (the USB to Serial adaptor COM port) and 9600 baud rate. (When this didn't work I also tried 38400 baud rate).
6. In the terminal section of PuTTY set Local echo to Force on.
7. Entered "AT\r\n" in PuTTY.
I didn't get an OK as the result. Did I do something wrong? Any help please?
Instructions on how to enter AT command mode (http://elecfreaks.com/store/download/datasheet/Bluetooth/HC-0305%20serail%20module%20AT%20commamd%20set%20201104%20revised.pdf