Hi Nick,
My HC-06 module is very latest and it behaves very differently from its predecessors. For example, in AT command mode (when not connected) it buffers all AT commands I send, instead of processing them and getting back to me with correct replies like "OK". As a result, once I connected (open the respective COM Port from Tera Term PC side) I am immediately getting all those buffered AT commands in PC side Tera Term window.
Next, when I close the COM port (i.e disconnect) the module sends a Message "+DISC:SUCCESS" which means successfully disconnected. But module should not send such message unless I specifically ask such status with respective AT command.
Finally my module flashes the Red LED twice every 2 seconds or so while it is connected. This is very strange as early HC-06 modules have there Red LEDs remains solid on as long as connected. So something is not right this latest HC-06 modules. Any idea what goes wrong here?