It also offers the ability to support a chip-on-flex configuration, in which the chip is directly mounted and electronically connected to a flexible circuit, eliminating the need for a controller.
To compensate for this movement of ions, electrons have to move in the opposite direction and if the electrodes are connected by a conducting wire running through a useful circuit, that is the route they will take.
The idea uses tiny, widely spaced tiny circuit elements embedded within a stretchy polymer and connected with wires that "popped up" as the polymer was stretched.
On your breadboard connect the MIDI circuit as follows: The collector is connected to a 220 ohm resistor which is connected to the second pin from the left on the back of the female midi connector (labelled pin 5).