I have 2 quick questions if anyone has time.
Using the RN-42 by Roving Networks (RN42-XV Bluetooth Module - PCB Antenna - WRL-11601 - SparkFun Electronics) I would like to be able to read the signal strength of a connected device while using the HID profile.
Tons of examples exist on setting up the module and it has worked really great... but when I connect to another device, the serial line becomes transparent..
In order to view signal strength I would need to issue the L (link quality command) in command mode. When I send out the Command mode signal ($$$) it just passes through to the connected device. (question 1) Is it not possible to enter command mode while connected under the HID Profile?
I'm using Master Mode to connect to the device.
Also the main reason I am using the HID profile, is because it automatically forms a full connection to my android phone without having to open any apps. When a full connection is formed I can check the connection status on one of the pins (GPIO2 I think). (question 2) If you have suggestions for a better way to do this please let me know!