Bill of Materials (BOM) SW1-SW6 (keyswitches), H1-H17 (just empty solder holes on the PCB), and H18-H21 (window mounting holes) are not included. Photo Reference Quantity Value Manufacturer Manufacturer Part No. DigiKey Link C1, C2 2 22pF Vishay BC Components K220J15C0GH53L2 https://www.digikey.com/product-detail/en/vishay-bc-components/K220J15C0GH53L2/BC5147-ND/2821627 C3 1 4.7u Panasonic Electronic Components ECE-A1HKA4R7 https://www.digikey.com/product-detail/en/panasonic-electronic-components/ECE-A1HKA4R7/P827-ND/6934 C4, C5 2 0.1u Vishay BC Components K104Z15Y5VF5TL2 https://www.digikey.com/product-detail/en/vishay-bc-components/K104Z15Y5VF5TL2/BC1160CT-ND/286782 D1-D4 4 1N4148 Vishay Semiconductor Diodes Division TZX3V6B-TR https://www.digikey.com/product-detail/en/vishay-semiconductor-diodes-division/TZX3V6B-TR/TZX3V6B-TRGICT-ND/9601328 D7, D8 2 3.6V Vishay Semiconductor Diodes Division 1N4148TR https://www.digikey.com/product-detail/en/vishay-semiconductor-diodes-division/1N4148TR/1N4148VSCT-ND/3104297 F1 1 100mA Bourns Inc. MF-R010 https://www.digikey.com/product-detail/en/bourns-inc/MF-R010/MF-R010-ND/259959 J1 1 AVR-ISP-6 METZ CONNECT USA Inc. PR20203VBDN https://www.digikey.com/product-detail/en/metz-connect-usa-inc/PR20203VBDN/1849-PR20203VBDN-ND/12342894 J2 1 SJ-43514 CUI Devices SJ-43514 https://www.digikey.com/product-detail/en/cui-inc/SJ-43514/CP-43514-ND/368146 P1 1 USB_C_Receptacle_USB2.0 GCT USB4085-GF-A https://www.digikey.com/product-detail/en/USB4085-GF-A/2073-USB4085-GF-ACT-ND/9859733 R1 1 10k Vishay BC Components SFR16S0001002JA500 https://www.digikey.com/product-detail/en/vishay-bc-components/SFR16S0001002JA500/BC4294CT-ND/7351724 R2, R3 2 5.1k Vishay BC Components MBA02040C5101FCT00 https://www.digikey.com/product-detail/en/vishay-bc-components/MBA02040C5101FCT00/BC3294CT-ND/6138797 R4 1 1.5k Vishay BC Components SFR16S0001501JA500 https://www.digikey.com/product-detail/en/vishay-bc-components/SFR16S0001501JA500/BC4304CT-ND/7351734 R5, R6 2 75R Vishay BC Components SFR16S0007509FR500 https://www.digikey.com/product-detail/en/vishay-bc-components/SFR16S0007509FR500/PPC75-0XCT-ND/594880 R7, R8 2 4.7k Vishay BC Components MBA02040C5101FCT00 https://www.digikey.com/product-detail/en/vishay-bc-components/MBA02040C4701FCT00/BC3275CT-ND/6138778 SW7 1 Reset TE Connectivity ALCOSWITCH Switches 1825910-3 https://www.digikey.com/product-detail/en/te-connectivity-alcoswitch-switches/1825910-3/450-3354-ND/2400476 SW8 1 Boot TE Connectivity ALCOSWITCH Switches 1825910-2 https://www.digikey.com/product-detail/en/te-connectivity-alcoswitch-switches/1825910-2/450-1649-ND/1632535 U1 1 ATmega328P-PU Microchip Technology ATMEGA328P-PU https://www.digikey.com/product-detail/en/microchip-technology/ATMEGA328P-PU/ATMEGA328P-PU-ND/1914589 U1 (socket) 1 DIP Socket Mill-Max Manufacturing Corp. 115-43-328-41-001000 https://www.digikey.com/product-detail/en/mill-max-manufacturing-corp/115-43-328-41-001000/ED90203-ND/1212100 Y1 1 16MHz Abracon LLC ABL-16.000MHZ-B2 https://www.digikey.com/product-detail/en/abracon-llc/ABL-16-000MHZ-B2/535-9041-ND/675236