Quantity   Component name
1 × Teensy LC
1 × USB Host Mini USB host based on MAX3421
1 × HCPL-0700 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
1 × 74AC125DG125
1 × 74AHC1G00DBV
1 × BSS138 Discrete Semiconductors / Diode-Transistor Modules
1 × WS2812B 5050