The goal is to be able to use the Akai MPK mini 25 as a set of inputs for doing sound design with a Teensy 3.2 Arduino device and an Audio Shield. There are some limitations that I have not been able to sort out to get the midi interface to work properly – e.g. to detect MIDI inputs over USB. I have tried three different Teensy setups (2 x 3.2 and 1 x 3.6), and three different computers (Intel NUC, an ASUS motherboard – Z17, and a MacBook Air) running Arduino 1.8.1 or 1.8.2 and the Teensyduino software 1.37 & 1.38. I just can not get the board to detect MIDI events (both using the serial port and simply blinking a LED).
However, I can get working the function of the Teensy to send MIDI. Using the Button Example and Reaper DAW software, I can get the Teensy 3.2 w/the audio shield to communicate with Reaper and send messages to play notes. All this is mystifying to me, but I know eventually I will get this sorted. I have swapped cables as well, and nothing works to get Teensy to receive MIDI messages.
I will post the problem to the forum and see what responses I can get… and search the web for problems with Teensy in the receive mode. This is important because I want to use the 8 pots and 8 pads to configure the functionality of the Teensy – for creating more interactive feedback from changes in state say from knobs and button pushes.
To be continued!