U1 ATxmega128A4U-A 32MHz, 128kB Flash, 8kB Boot, 8kB SRAM, 2kB EEPROM, JTAG, USB, TQFP-44 U2 AMS1117-3.3 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 U3 USBLC6-2SC6-SOT23 Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 U4 AP2112K-3.3 600mA low dropout linear regulator, with enable pin, 3.8V-6V input voltage range, 3.3V fixed positive output, SOT-23-5 C1-C4,C10 100nF Unpolarized capacitor C5,C6 15pF Unpolarized capacitor C7 4.7nF-10nF Unpolarized capacitor C8,C9 10uF Polarized capacitor D1-D4 LED Light emitting diode F1 500mA Resettable fuse, polymeric positive temperature coefficient J1 Conn_02x03_Odd_Even Generic connector, double row, 02x03, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) J2 USB_A_MALE USB Type A connector