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2 layers133.4 × 50.8 mmClock, the printed circuit board in 3D

Voltmeter Clock

Size
133.4 × 50.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
62
Nets
30
Pads
190
Tracks, vias
553, 68
Pours
3
Routed
Yes
KiCad
KiCad 3
Created
3 Jan 2014
Updated
22 Jun 2016

Overview

Clock is an open-source printed circuit board by awkwardengineer, from the awkwardengineer/Clock repository on GitHub. It is a 2-layer board of 133.4 × 50.8 mm with 62 parts on 30 nets, routed with 553 tracks and 68 vias.

It is built around the ATTINY84A-SSF and MCP1624-I/MC. Its parts include 16 resistors, 11 connectors, 10 capacitors, 5 transistors and 4 ICs. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

2

README

README.md

Voltmeter Clock Image

Intro

This is the repository for the AWK-105 Voltmeter clock. Here is where we'll be storing requirements documents, design history files, useful tidbits of information, and other material that otherwise wouldn't be release to manufacture or included in a Bill of Materials

##Consumer Facing Page The repo may be cool, but it's not for everyone. The consumer facing product page has the bulk of the media material.

Awkward Engineer Product Page

##How This Repo Is Organized In general, there are two categories of thing:

  • Artifacts that will become part of the Bill Of Materials and will be released to a manufacturer. This includes CAD files, drawings, Gerbers, etc.
  • Documentation and design files that record useful and important information, but that the manufacturer doesn't need to actually MAKE something.

The idea was to try to organize the documentation near the design file, kindof like things are arranged below.

Clock
|
|--Mechanical
|   |----CAD <=== BOM artifacts, 3d part files, drawings
|   |----Design Docs <=== Documentation specific to mechanical stuff |   |----Reference Mat. <=== Usually mostly .pdfs
|
|--Electrical
|   |----CAD <=== Gerbers, net files, etc...
|   |----Design Docs <=== Documentation specific to electrical stuff
|
|--Photos
|
|--etc...

##Design Documents Here are some quick links to some design stuff, right off the bat.

[Requirements](Electrical/Design Docs/requirements.md)
[Microchip selection](Electrical/Design Docs/microcontroller selection.md)
Sales strategy

Parts

62
QtyValueFootprintReferences
4CONN_2TE-connectivity-2P5, P6, P7, P9
4FET_NSOT23Q1, Q3, Q4, Q5
3.01uFSM0805C5, C6, C8
310KSM0805R3, R9, R12
310uFSM0805C1, C3, C9
3220SM0805R13, R14, R15
3CONN_2SIL-2P2, P3, P4
3Val**BREAK_HOLEBREAK_TAB, BREAK_TAB, BREAK_TAB
20KSM0805R1, R16
212.5pFSM0805C2, C4
233KSM0805R7, R8
251KSM0805R10, R11
2AMMETERammeterDS1, DS2
2BATTERY_CLIPAA_Battery_Clip_THRU_HOLE_BK-92BT1, BT2
2LEDSIL-2D2, D3
1100Kbourns_knobR2
1100KSM0805R4
1130KSM0805R5
11uFSM0805C10
11uFC1C7
1200KSM0805R6
14.7uHSM0805L1
1ATTINY84A-SSSO14EIC1
1AVR-ISP-6ISPheaderCON1
1CONN_6SIL-6_sP1
1CRYSTAL 32.768kHzSMD_CRYSTAL_SMALLX1
1DIODESM0805D4
1DIODESIL-2D1
1FET_PSOT23Q2
1MCP1624SOT23_6U1
1MCP1702T-1502E/CBSOT23U3
1MCP1702T-1502E/TOTO92-INVERTU2
1QUADRATURE_ENCODRbourns_encoderS1
1SPEAKERSMT_BUZZERSP1
1SPKRSIL-2P8
1SPSTSIL-2SW1
1USB-MICRO-BUSB_MINI_B_sCON2

Questions

How big is the Clock PCB?

It measures 133.4 × 50.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Clock use?

62 parts, built around the ATTINY84A-SSF and MCP1624-I/MC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Clock KiCad files?

From the awkwardengineer/Clock repository on GitHub, at the commit this page was made from: the board is Electrical/Board Design/clock.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Clock design in my own project?

Its repository states no licence, so its author keeps all rights: ask awkwardengineer before reusing the design.

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