BlueTerm 2 v2.0 APK (Unlimited Money)

Bluetooth terminal emulator for communicating with any serial device using a bluetooth serial adapter. The RFCOMM/SPP protocol emulates serial communications over bluetooth.
You need a bluetooth serial adapter like the HC-05 or HC-06

You can use this to control your Arduino or Raspberry Pi, if you have connected a bluetooth serial adapter to its serial port.

This is an updated version to https://play.google.com/store/apps/details?id=es.pymasde.blueterm
In the original version it was impossible to use commands like 'ctrl-c' on newer devices with just a few buttons.
Both volume keys are set to be the special key for those commands now. Simply press one of them together with e.g. 'c' on your android keyboard and the output will be 'ctrl-c'.

This is an opensource application. You can get more info and the source code from:
http://pymasde.es/blueterm/
Thanks everybody for the feedback.