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Analouge Clock

1 month ago 34
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Description

A simple 12 hr analouge clock using a 555 timer and 6 CD4017 decade counters. A switch was added to turn on another two 555 timers, one to set the minutes and one to set the hours. Breadboarded the project in parts but I'm having trouble with the simulation, so I'm not 100% on if it works. I can't seem to make the auto route work properly either, but I think this maybe a software issue?? 

Documents

Sheet_1

PCB_Clock

PCB_Clock_Auto_Route

BOM

ID Name Designator Footprint Quantity
1 1uF C1,C3,C5 C0603 3
2 100uF C2,C4,C6 CASE-A_3216 3
3 1N4007W D1,D2,D3,D4,D5,D6,D7 SOD-123_L2.8-W1.8-LS3.7-RD 7
4 LEDBlue light LED1,LED2,LED3,LED4,LED5,LED6,LED7,LED8,LED9,LED10,LED11,LED12,LED13,LED14,LED15,LED16,LED17,LED18,LED19,LED20,LED21,LED22,LED23,LED24,LED25,LED26,LED27,LED28,LED29,LED30,LED31,LED32,LED33,LED34,LED35,LED36,LED37,LED38,LED39,LED40,LED41,LED42,LED43,LED44,LED45,LED46,LED47,LED48,LED49,LED50,LED51,LED52,LED53,LED54,LED55,LED56,LED57,LED58,LED59,LED60,LED61,LED62,LED63,LED64,LED65,LED66,LED67,LED68,LED69,LED70,LED71,LED72,LED73,LED74,LED75,LED76,LED77,LED78,LED79,LED80,LED81,LED82,LED83,LED84,LED85,LED86,LED87,LED88,LED89,LED90,LED91,LED92,LED93,LED94,LED95,LED96,LED97,LED98,LED99,LED100,LED101,LED102,LED103,LED104,LED105,LED106,LED107,LED108,LED109,LED110,LED111,LED112,LED113,LED114,LED115,LED116,LED117,LED118,LED119,LED120,LED121,LED122,LED123,LED124,LED125,LED126,LED127,LED128,LED129,LED130,LED131,LED132 LED-SMD_L3.6-W2.9-R-RD 132
5 NE555D HRS,MIN,SEC SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL 3
6 CD4017BM96 HRS_T,HRS_U,MIN_T,MIN_U,SEC_T,SEC_U SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL 6
7 BC817-25(6B) Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,Q13,Q14,Q15 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 15
8 470 R1,R2,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,R13,R14 R0603 14
9 10k R15,R16,R17,R18,R19,R20,R21,R22,R23,R24,R25,R26 R0603 12
10 4.81k R27,R28,R29,R30,R31,R32 R0603 6
11 1k R33,R34,R35,R36,R37,R38,R39,R40,R41,R42,R43,R44,R45,R46,R47 R0603 15
12 DIP switchEI-04 SW1 SW-TH_DIPSWITCHEI-04 1
13 9 V1 HDR1X2 1

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