# RefDes Value Pattern Quantity 1 B1 CR1220 1 2 C1 - C8, C12, C14 0.1uF CAP_0805 10 3 C9 4.7uF CAP_0805 1 4 C10, C11 10uF TC_0805 2 5 C13 10uF CAP_0805 1 6 C15, C16 47pF CAP_0805 2 7 D1 1N4148 CAP_0805 1 8 D2 BAT42 MINIMELF 1 9 J1 – J6 connectors 1 15 LS1 Piezo 1 16 Q1 AP2309GN SOT23 1 17 Q2 BC807 SOT23 1 18 R1, R2, R3, R5, R6, R7 22k RES_0805 6 19 R4, R11, R12, R15, R16 10k RES_0805 5 20 R8 100R RES_0805 1 21 R9 470k RES_0805 1 22 R10 100k RES_0805 1 23 R13, R14 27R RES_0805 2 24 U1 ATmega328 QFP-32/9x9x0.8 1 25 U2 DS1302Z SOIC-8/150mil 1 26 U3 LTC4412ES6 SOT23-6 1 27 U4 FT321X QSOP-20 1 28 U5 LP2985-33 SOT23-5 1 29 Y1 16.0 CSTCE16M0V53-R0 1 30 Y2 0.032768 1