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2 layers28 × 44.5 mmMsp clock, the printed circuit board in 3D

This date clock aims to modify an existing analog quartz wall clock to render the date with its hands.

Size
28 × 44.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
32
Nets
26
Pads
94
Tracks, vias
137, 0
Pours
1
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
11 Oct 2024
Updated
17 Oct 2024

Overview

Msp clock is an open-source printed circuit board by thomas-emb, from the thomas-emb/date_clock repository on GitHub, published under the BSD-2-Clause licence. It is a 2-layer board of 28 × 44.5 mm with 32 parts on 26 nets, routed with 137 tracks and 0 vias.

It is built around the BC817. Its parts include 14 resistors, 7 connectors, 4 capacitors, 2 ICs and 2 diodes. It belongs with the lEDs and displays boards and the MSP430 boards of this library.

Main components

1

README

README.md

Date clock

a

This date clock aims to modify an existing analog quartz wall clock to render the date with its hands.

As clocks have three hands, a date clock allows for the rendering of three date properties:

  • hours now displays the current month.
  • minutes now displays the current day of the month.
  • seconds now displays the current day of the week.

As weeks tend to start on either Sunday or Monday, dependent on the country, this date clock uses day 0-6, where the meaning is entirely dependent on the face plate.

Parts

32
QtyValueFootprintReferences
610kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3, R4, R5, R8, R9, R14
32k7Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR11, R12, R13
3Conn_01x02Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_VerticalJ1, J2, J6
3Conn_01x03Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_VerticalJ3, J4, J5
2330nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC1, C2
2CCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC3, C4
11kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1
125LCxxxPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU2
133uHInductor_SMD:L_Murata_LQH2MCNxxxx02_2.0x1.6mmL1
13k9Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR7
147kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR2
16k8Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR6
1BC817Package_TO_SOT_SMD:SOT-23-3Q1
1Conn_02x05_Odd_EvenConnector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_VerticalJ7
1Jumper_2_Small_BridgedResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderJP1
1MSP430x09xPackage_SO:TSSOP-14_4.4x5mm_P0.65mmU1
1N4148Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolderD1
1RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR10
1redLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD2

Questions

How big is the Msp clock PCB?

It measures 28 × 44.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Msp clock use?

32 parts, built around the BC817. 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 Msp clock KiCad files?

From the thomas-emb/date_clock repository on GitHub, at the commit this page was made from: the board is hw/msp_clock/msp_clock.kicad_pcb and its schematic hw/encoders/encoders.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Msp clock design in my own project?

Its repository publishes it under the BSD-2-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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