References Qty Description C2, C1 2 C Small 22p Unpolarized capacitor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder C3 1 C Small 10n Unpolarized capacitor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder C5, C10, C4 3 C Polarized Small-Device 22u CP Elec 4x5.3 C7, C9, C6, C11 4 C Small 100n Unpolarized capacitor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder C8 1 C Small 220n Unpolarized capacitor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder C12 1 C Small 100n Unpolarized capacitor, small symbol 0603 1608Metric Pad1.08x0.95mm HandSolder C13 1 C Small 10u Unpolarized capacitor, small symbol 0603 1608Metric Pad1.08x0.95mm HandSolder C14, C15 2 C Small 10n Unpolarized capacitor, small symbol 0603 1608Metric Pad1.08x0.95mm HandSolder D1 1 LED Light emitting diode 0603 1608Metric Pad1.05x0.95mm HandSolder D2 1 LED PWRLED Light emitting diode 0603 1608Metric Pad1.05x0.95mm HandSolder D3 1 D Schottky Small diode, small symbol SMC J1 1 USB C Receptacle USB2.0-Connector USB2.0 Palconn UTC16-G J2 1 Conn 02x20 Odd Even RPI40 Generic connector, double row, 02x20, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) PinSocket 2x20 P2.54mm Vertical J3 1 Conn 01x04 TOUCH Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) TE 84953-4 1x04-1MP P1.0mm Horizontal J4 1 Conn 01x40-conn 01x40 Hirose FH12-40S-0.5SH 1x40-1MP P0.50mm Horizontal J5 1 Conn 01x03 Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) PinHeader 1x03 P2.54mm Vertical L1 1 L Small 22u Inductor, small symbol 6.3x6.3 H3 L2 1 L Small Inductor, small symbol 6.3x6.3 H3 Q1 1 Q NMOS GSD ATM7002KNSA N-MOSFET transistor, gate/source/drain SOT-23 Handsoldering R1 1 R Small 20k Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R2 1 R Small 180 Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R3 1 R Small NB Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R4 1 R Small 7k5 Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R5 1 R Small 1 Resistor, small symbol 1206 3216Metric Pad1.30x1.75mm HandSolder R6 1 R Small 1 Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R7 1 R Small 470k Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R8, R11 2 R Small 105k Resistor, small symbol 0603 1608Metric Pad1.05x0.95mm HandSolder R9 1 R Small 1k5 Resistor, small symbol 0603 1608Metric Pad0.98x0.95mm HandSolder R10 1 R Small 105k Resistor, small symbol 0603 1608Metric Pad0.98x0.95mm HandSolder RV1 1 R Potentiometer-Device 10 Potentiometer Bourns 3214J Horizontal SW1 1 SW SPDT Switch, single pole double throw PCM12 TP1 1 TestPoint 3V3 DISPLAY test point Keystone 5000-5004 Miniature TP2 1 TestPoint BG LEDS test point Keystone 5000-5004 Miniature U1 1 AR1100 SSOP-20 5.3x7.2mm P0.65mm U2 1 PT4103 SOT-23-6 Handsoldering U3 1 ME3102 SOT-23-5 HandSoldering Y1 1 Crystal GND24-device GND24 SMD 3225-4Pin 3.2x2.5mm