+RN-42:
+http://www.microchip.com/wwwproducts/Devices.aspx?product=RN42
+
+
+Capabitlities:
+- USB keyboard functions
+ completely equivarent to USB controller including mouse keys and NKRO.
+- Switching between USB and Bluetooth
+ You can switch the two connections with BT switch or key combination.
+- RN-42 config mode
+ You can change power/connection configuration of the module if needed.
+- Low battery alert
+ Red LED turns on when low voltage.
+- RN-42 status indicator
+ LED indicates status of Bluetooth connection.
+- Pairing
+ The module stores up to 8 connections.
+- Auto connect
+ The module connects the last connected device automatically.
+- iOS support
+ works as keyboard with iPhone5. No tested completely.
+- Android support
+ works as keyboard and mouse with Nexus5. No tested completely.
+- Mouse keys over BT
+ Note that iOS doesn't accept mouse device.
+
+