Electronics, 4

I am reading two pdfs to learn PCB workflow and circuit design.

Somewhere in here:
https://www.dropbox.com/sh/g7n0yebh9tt7xtz/AAC3xcKaJoDhmUIUYEyAjX5ka?dl=0

Also, a set of diodes arrived but they are humongous, so I am trying to donate them to my school.

Programming, 1

Test of sending MIDI data through a serial port, in this case USB. 

You set output of a MIDI program to the Hairless Midi-Serial program, which routes MIDI Data to a serial port.

Usually the MIDI output is set to your computer's synthesizer which plays the notes according to the output. The MIDI program does not play any sound.

The Arduino will read its serial port and know which note to play. 

Hardware, 3

All the mini-solenoids arrived! Wow so many!

Also a 9v power adapter and 5v wall wart came but not shown.

Todo:

<Hardware>
Design solenoid chassis
Test air supply
Test and create air valve
Glue fingertips to solenoids
<Electronics>
Design a PCB
- Solder everything to that PCB
Figure out current draw of extended solenoid
Maybe add bluetooth functionality and battery backup
<Programming>
Program a program to convert notes to fingerings

Electronics, 3

Switched power to board to wall wart AC Adapter

One control for a solenoid now fits on three rows of breadboard

Electronics, 2

MOSFET and Relay have arrived

Hardware, 2

3d printed fan, 0.5 scale

Fan running with good airflow; spins clockwise. (9v)

Timelapse of its design

Electronics, 1

Power supply for solenoids

Buying rest of solenoids

MOSFET for solenoid control

Relay for fan control (do i even need this?)

Air control solenoid valve diagram, concept

Hardware 1

Recorder, Preliminary testing

Arduino Recorder

This and subsequent posts will follow my pursuit of the goal of making a midi-powered recorder.

There are three parts: Electronics, engineering, and programming.

Electronics: Power supply, solenoids, motor, and their controls (PCB).

Engineering: Fan design, air valve, solenoid mounts, solenoid fingertips

Programming: MIDI file system, convert midi to pin out, read from serial port/

supplies are coming in from amazon
est cost: $300

est time, from start to finish: 5 months

est time actually working on it: 100 hours