ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Paste Type 1 51R "R26,R27,R28" R0603 3 2 1K "R4,R5,R6,R13,R15,R16,R18,R19,R20,R21,R22" R0603 11 3 2K2 "R9,R23" R0603 2 4 2K4 R14 R0603 1 5 3K3 R10 R0603 1 6 4K7 R12 R0603 1 7 10K "R2,R3" R0603 2 8 100K "R1,R7,R8,R11,R17,R24,R25" R0603 7 LCSC C100048 0.0017 9 10pF C21 C0603 1 10 15pF "C4,C6" C0603 2 11 22pF "C24,C25,C26" C0603 3 12 33pF "C1,C3,C20" C0603 3 13 10nF "C5,C9,C11,C19" C0603 4 14 100nF "C7,C8,C10,C12,C14,C15,C18,C23" C0603 8 15 10uF "C2,C17,C22" C0603 3 16 LL4148-GS08 "D1,D2" SOD-80_L3.5-W1.5-RD 2 LL4148-GS08 VISHAY LCSC C68883 0.0147 17 "BC817-25,215" "Q1,Q2" SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 2 "BC817-25,215" Nexperia LCSC C39828 0.023 Yes 18 4.7uF C13 CAP-SMD_L3.2-W1.6-R-RD 1 TAJA475K016RNJ AVX LCSC C7187 0.1619 Yes 19 100uF C16 CAP-SMD_L3.2-W1.6 1 TLJA107M006R0800 AVX LCSC C27279 0.2944 Yes 20 100nH L1 L0603 1 CS0603-R10J-S Chilisin LCSC C142168 0.0601 21 MCP1700T-3002E/TT U8 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 1 MCP1700T-3002E/TT MICROCHIP LCSC C62244 0.5879 Yes 22 32.768KHz X1 OSC-SMD_2P-L3.2-W1.5 1 CM315D32768DZFT CITIZEN LCSC C182057 0.2022 23 ESDA6V1-5W6_C87908 D3 SOT323-6L_L2.0-W1.3-LS2.1-BL 1 ESDA6V1-5W6 STMicroelectronics LCSC C87908 0.1479 24 DS1307ZN+ U1 SOP-8_L4.9-W3.9-P1.27-LS6.0-BL 1 DS1307ZN+ MAXIM LCSC C26858 2.0937 Yes 25 24LC512T-I/SN "U7,U9" SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL 2 24LC512T-I/SN MICROCHIP LCSC C52088 1.2067 Yes 26 MC14066BDR2G U5 SOP-14_L8.6-W3.9-P1.27-LS6.0-BL 1 MC14066BDR2G ON LCSC C52828 0.2232 Yes 27 CH340G U4 SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL 1 CH340G WCH LCSC C14267 0.5014 Yes 28 PIC18F25K22-I/SO U2 SOIC-28_L17.9-W7.5-P1.27-LS10.3-BL 1 PIC18F25K22-I/SO MICROCHIP LCSC C32668 3.7112 29 SIM800C 24Mbit U10 SIM800C 1 SIM800C 24Mbit SIMCOM LCSC C69119 6.3945 dnf AHT10 U6 AHT10 1 AHT10 LCSC C368909 1.3616 30 KH-IPEX-K501-29 RF1 ANT-SMD_KH-IPEX-K501-29 1 KH-IPEX-K501-29 Shenzhen Kinghelm Elec LCSC C411563 0.075 31 nano1.4_c77877 CN2 SIM-SMD_C77877 1 - Boom Precision Elec LCSC C77877 0.5212 32 11.0592MHz X2 HC-49S_L11.4-W4.8 1 X49SM110592MSD2SC YXC LCSC C2245 0.1002 33 12MHz X3 HC-49S_L11.4-W4.8 1 C12000J177 ZheJiang East Crystal Elec LCSC C259045 0.1032 34 MKA-10110 U3 MKA10110 8-22 1 MKA-10110 Ryazan Metal Ceramics Instrumentation Plant JSC LCSC C92643 0.3856 35 AF 13.7 180degree Bend foot Have side iron PBT White plastic USB1 USB-A-TH_4P-L14.3-W6.7-V-F_AF13.7 1 AF 13.7 180degree Bend foot Have side iron PBT White plastic ValuePro LCSC C39456 0.0692 36 Header-Male-2.54_1x6 H2 HDR-TH_6P-P2.54-V 1 Header-Male-2.54_1x6 BOOMELE LCSC C37208 0.0257 37 22-23-2041 CN1 CONN-TH_4P-P2.54_22-23-2041 1 2510S-4P Shenzhen Cankemeng LCSC C140769 0.0226 38 2510S-4P CN3 CONN-TH_4P-P2.54_A2510S-4P 1 2510S-4P Shenzhen Cankemeng LCSC C140769 0.0226 Yes expand 39 BS-2-1 B1 BATTERY_SOLDER_PAD 2MM 1 BS-2-1 Q&J LCSC C70376 0.0743 40 PZ200V-11-04P H3 HDR-TH_4P-P2.00-V-M 1 PZ200V-11-04P XFCN LCSC C541858 0.0187 41 PZ200V-11-02P H4 HDR-TH_2P-P2.00-V-M 1 PZ200V-11-02P XFCN LCSC C541856 0.0102