26 July/August 2018
■ FIGURE 2. Circuit diagram of the MIDI lyre.
DESCRIPTION QTY
Electronics
1/2 size solderless breadboard 1
Arduino Uno 1
Perspex carrier plate for Uno and breadboard (optional) 1
Adafruit 12-key capacitive touch sensor breakout - MPR121 (PRODUCT ID: 1982) 1
Tactile button (E Switch TL1100F160Q or similar) to fit breadboard 2
(SparkFun tactile button assortment 10302 is perfect)
Tactile button key caps (optional; included in SparkFun tactile button assortment) 2
220R resistor 2
DIN 41524, 5/180º mini-DIN connector, right angle, PCB mounting, 1
(e.g,. CUI, Inc.; SDS-50J or SparkFun PRT-09536)
Dupont jumper wire connected 6 inch (approx) male to male (e.g., SparkFun PRT-12795) 1
Strings
2 mm diameter x 1 m length extruded carbon fiber rod 4
15A 12-way terminal barrier block (with screw fixings to take carbon fiber rod) 8 mm pitch 2
PARTS
LIST
