Components

SparkFun

Logic Level Converter Bi-Directional (BOB-12009)

Cool Components

Electronic Parts Kit

Generic / OEM

Momentary Push Button Switch - 12mm Square

SparkFun

Rotary Encoder - Illuminated (RGB) (COM-10982)

Cool Components

Big Dome Push Button - Green

Adafruit

TCA9548A I2C Multiplexer (ID: 2717)

SparkFun

DC Barrel Jack Adapter - Female (PRT-10288)

Generic / OEM

Switch - Mini SPDT Power

Generic / OEM

Voltage Regulator - 5V

Generic / OEM

Diode 1N4001

Generic / OEM

Thumb Joystick

Generic / OEM

Tactile Button Assortment

Generic / OEM

Mini Microswitch - SPDT (Offset Lever, 2-Pack)

Adafruit

8-channel Bi-directional Logic Level Converter - TXB0108 (ID: 395)

Generic / OEM

LED - Red 3mm

Cool Components

Big Dome Push Button - Green with Clear Case Rim

SparkFun

Opto-isolator Breakout (BOB-09118)

Adafruit

Potentiometer with Built In Knob - 10K ohm (ID:4133)

Generic / OEM

Audio Jack 3.5mm

Generic / OEM

Tactile Switch Buttons (6mm slim) x 5 pack

Adafruit

SoftPot Membrane Potentiometer - 100mm (ID: 178)

Generic / OEM

Transistor NPN BC547B

Cool Components

Big Dome Push Button - Blue with Clear Case Rim

SparkFun

DC Barrel Jack Adapter - Male (PRT-10287)