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STD Caswal's Ultimate Kitchen Timer

License: BSD

Mode: Editors' pick

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Update time： 2020-07-15 11:19:42
Creation time： 2020-07-10 06:45:50
Description
My first PCB design with the MCU integrated, rather than using an Arduino connected with headers. First attempt at Li-Ion Charge control and protection. First attempt at using a boost controller.
Design Drawing
schematic diagram
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PCB
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BOM
BOM download Purchase Parts
ID Name Designator Footprint Quantity BOM_Supplier BOM_Manufacturer BOM_Manufacturer Part BOM_Supplier Part
1 4.7K R11,R10,R19,R18,R14,R13,R12,R9,R16,R17 R0603 10 LCSC UniOhm 0603WAF4701T5E C23162
2 SKHWALA010 RST1 KEY-TH_4P-L6.0-W6.0-P4.50-LS6.5 1 LCSC ALPS Electric SKHWALA010 C139771
3 UART UART HDR-TH_4P-P2.54-V 1 LCSC Ckmtw 210S-1*4P L=11.6MMGold-plated black C124378
4 CR2032-BS-6-1 B1 BAT-TH_CR2032-BS-6-1 1 LCSC Q&J CR2032-BS-6-1 C70377
5 18 R39 R0603 1 LCSC YAGEO RC0603FR-0718RL C245924
6 100nF C23,C4 C0603 2 LCSC YAGEO CC0603KRX7R9BB104 C14663
7 AVR ISP 6-Pin P2 HDR-M-2.54_2X3 1 LCSC BOOMELE Header-Male-2.54_2x3 C65114
8 10uH L1 L0603 1 LCSC Sunlord SDFL1608S100KTF C1035
9 32.768KHz X2 OSC-SMD_L3.2-W1.5 1 LCSC EPSON FC-13532.768KHZ9PF20PPM C99010
10 1uF C22,C24 C0603 2 LCSC SAMSUNG CL10A105KB8NNNC C15849
11 10uF C20,C1,C3,C6 C0603 4 LCSC SAMSUNG CL10A106MA8NRNC C96446
12 BQ32000DR U1 SOP-8_L4.9-W3.9-P1.27-LS6.0-BL 1 LCSC TI BQ32000DR C52495
13 10K R40,R20,R4,R5,R6,R7,R8,R3,R21,R22,R23,R24,R25,R26,R27,R28,R29,R30,R31,R32,R33,R34,R35,R36,R37 R0603 25 LCSC UniOhm 0603WAF1002T5E C25804
14 HDC1080DMBR S1 PWSON_6-PIN 1 LCSC TI HDC1080DMBR C82227
15 8 SPKR FS-3013 1 LCSC FUET FS-3013 C482323
16 FS8205A Q2,Q4 TSSOP-8_L4.4-W3.5-P0.65-LS6.4-BL 2 LCSC FORTUNE FS8205A C16052
17 ATMEGA328P-AU U5 TQFP-32_L7.0-W7.0-P0.80-LS9.0-BL 1 LCSC MICROCHIP ATMEGA328P-AU C14877
18 PEC12R-4230F-S0024 SW1,SW2,SW3,SW4 SW-TH_PEC12R-4230F-S0024 4 LCSC BOURNS PEC12R-4230F-S0024 C143818
19 10nF C11,C8,C9,C2,C10,C12,C13,C14,C15,C16,C17,C18 C0603 12 LCSC FH 0603B103K500NT C57112
20 LMV321B-TR U7 SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR 1 LCSC 3PEAK LMV321B-TR C248567
21 100uF C5 CAP-SMD_L3.5-W2.8-R-RD 1 LCSC Xiangyee CA45-B010K107T C122644
22 4.7uF C7 C0603 1 LCSC SAMSUNG CL10A475KO8NNNC C19666
23 100K R41 R0603 1 LCSC UniOhm 0603WAF1003T5E C25803
24 DW01 Q1 SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR 1 LCSC Hottech DW01 C181096
25 100 R1 R0603 1 LCSC UniOhm 0603WAF1000T5E C22775
26 FDN340P Q3 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 1 LCSC FAIRCHILD FDN340P C75469
27 1K R15 R0603 1 LCSC UniOhm 0603WAF1001T5E C21190
28 MHT150UGCT LED1 LED1206-RD 1 LCSC MEIHUA MHT150UGCT C397048
29 22uH L2 IND-SMD_L4.5-W3.2_NL453232T 1 LCSC TDK NLC453232T-220K-PF C86821
30 2.8K R2 R0603 1 LCSC UniOhm 0603WAF2801T5E C22947
31 Micro USB 5P_c21377 USB1 MICRO-USB-SMD_5P-P0.65-H-M_MICRO-USB-5P 1 LCSC Boom Precision Elec - C21377
32 XT4054K421MR-G U4 SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL 1 LCSC NATLINEAR XT4054K421MR-G C141405
33 ME2188A50XG U3 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 1 LCSC Nanjing Micro One Elec ME2188A50XG C236769
34 Battery BATTERY HDR-TH_2P-P2.54-V 1 LCSC TE Connectivity 826629-2 C86471
35 330 R38 R0603 1 LCSC UniOhm 0603WAF3300T5E C23138
36 TCA9548APWR U2 TSSOP-24_L7.8-W4.4-P0.65-LS6.4-BL 1 LCSC TI TCA9548APWR C130026
37 OLED1 OLED1 HDR-TH_4P-P2.54-V_A2541HWV-4P 1 LCSC Changjiang Connectors A2541HWV-4P C225501
38 OLED2 OLED2 HDR-TH_4P-P2.54-V_A2541HWV-4P 1 LCSC Changjiang Connectors A2541HWV-4P C225501
39 OLED3 OLED3 HDR-TH_4P-P2.54-V_A2541HWV-4P 1 LCSC Changjiang Connectors A2541HWV-4P C225501
40 OLED4 OLED4 HDR-TH_4P-P2.54-V_A2541HWV-4P 1 LCSC Changjiang Connectors A2541HWV-4P C225501

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