Solenoid MIDI

MIDI Arduino projects that whack on objects to produce  a sound (bells, found objects, surfaces, actual instruments (drums, etc.) might use a component called a "solenoid" as an actuator.
A solenoid is an electromagnet -- a coil of wire and a magnetically-conductive rod that moves when a voltage is applied to the coil.

ATLAS and MIDI Solenoids

In 2015, Jiffer Harriman (CU ATLAS PhD), developed custom hardware and software to enable controlling motors and solenoids using the MIDI standard. Here's his SoundNoise installation and performance which:
".. is a robotic music ensemble that explores new techniques to make music by triggering a variety of motors to produce sound by physically striking, shaking, tapping or blowing on different physical objects, including the architecture of the space itself."

Let's take a look: https://www.jifferharriman.com/solidnoise

Demo:

We have a single solenoid example to demonstrate at the workshop.
A small modification to the servo sketch adds a solenoid on MIDI channel 10. (Channel 10 is often used for drums/percussion.)
MIDI_ON pulls in the solenoid, and MIDI_OFF releases it.
The solenoid controller is connected to output pin 5 and ground. 

Here's the sketch:
MIDI_pot_note_servo_solenoid_ProMicro.ino

Your ideas?

• Want to experiment with the solenoid demo? OK!

• Do you have other ideas  for MIDI user interfaces or actuators that can be interfaced to  the Arduino kit? Let's discuss.