Overview

Called the "type writer" as it resembles the shape of an old type writer. It's function is that of a base station to be used with actuators.

Operation

A range of actuators (switches, pressure pads, joysticks, push buttons etc,) are plugged into the sockets on the rear panel). The buttons on the base station are primarily used for testing.) On the lower front can be found the amplifier control (level and tone). The left hand rotary switch changes the percussion instruments. The rotary switch changes the instruments used by the chords.

Code

The device is powered by an Arduino micro-controller. Code :-Arduino listing in PDF form

The Setup

Here there are a couple of base stations set up for use by the general public. Actuators are connected by 1/4 in jack audio cables. In the photo graph are Large Buttons, Floor Pressure Pads, a Joystick and Finger Drums

Front Panel

LHS: Four percussion sounds can be operated polyphonically. Instruments available: Taiko, melo Tom, Synth Drum, Timpani, Wood Block, Agago.

RHS: Up to 6 chords can be operated polyphonically. Currently programmed for A, E, D, G, A7 and C. These can be changed to any chord of choice in the software. Instruments available: Acoustic Grand Piano, Piccolo, Electric Guitar, Cello, Choir Aahs.

Rear Panel

The rear panel mirrors the front panel in layout. Actuators are plugged into the relevant sockets. The small round connector is a 5 pin DIN. This allows a single cable to connect to a switch with multiple outputs e.g. a joystick but just using a single cable. It is proposed on future base stations 2021 onwards to use XLR connectors as these will not accidentally pull out.

Micro controller setup

LHS The Arduino is on the acting as a MIDI controller. Connections from the sockets and switches go to the "screw shield" in the middle. On top is a Sparkfun Music Shield acting as a MIDI synthesiser. It audio out put is fed to an amplifier

RHS: MIDI output, USB connectors and 12v PSU input.