Project: MIDI-TC pro
MIDI Tablet controller
Description:
This device receives MIDI commands from a MIDI-to-USB adapter. Then the device can control a tablet by mimicking a virtual mouse. 
Demo
Features:
Accepts MIDI commands and uses those commands to perform automated tasks on a tablet or smart phone.
PC Compatibility via OTG adapter
Bluetooth Connectivity
I2C Expansion Port (Used for Bluetooth)
Bill Of Materials:
Teensy LC
MIDI Shield Breakout Board
Adafruit Bluefruit NRF52
Silicon Hook-up Wire (26 awg)
4 pin JST connector both male and female (Optional between the Bluefruit and Teensy)
Wiring Diagram:
Case Opened