Quantity   Component name
1 × TSOP58238 Opto and Fiber Optic Semiconductors and ICs / Opto Emitters, Transmitters, Receivers and Transceivers: https://www.digikey.com/en/products/detail/vishay-semiconductor-opto-division/TSOP58238/4695679
1 × TSAL6102UL IR LED: https://www.digikey.com/en/products/detail/vishay-semiconductor-opto-division/TSAL6102UL/20379899
1 × 0.1 uF Capacitor Capacitor: https://www.digikey.com/en/products/detail/kemet/C320C104K5R5TA7303/3726160
2 × ~100 Ohm Resistor Resistor: https://www.digikey.com/en/products/detail/yageo/MFR-25FBF52-97R6/12793
2 × ~10K Ohm Resistor Resistor: https://www.digikey.com/en/products/detail/yageo/MFR-25FRF52-10K/14626
2 × Tactile Switch Switches: https://www.digikey.com/en/products/detail/same-sky-formerly-cui-devices/TS02-66-50-BK-260-LCR-D/15634249
1 × Male 2x3 2.54mm (0.1") Pin Pitch Shield header Connector: https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/61200621621/4846913
1 × ATTINY85-20 Microprocessor: https://www.digikey.com/en/products/detail/microchip-technology/ATTINY85-20PU/735469