2 layers24.4 × 24.4 mm
OSO SWAT B1
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
39 parts2.1k
2 layers176 × 58 mm
Liclock
MichaelDarr/liclockthe libre chess clock
- Size
- 176 × 58 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 110
- Pads
- 292
- Tracks, vias
- 996, 777
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.99 (file 20240225)
- Created
- 4 Nov 2023
- Updated
- 18 May 2024
Overview
Liclock is an open-source printed circuit board by MichaelDarr, from the MichaelDarr/liclock repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 176 × 58 mm with 39 parts on 110 nets, routed with 996 tracks and 777 vias.
It is built around the LCD-S401C71TR. Its parts include 10 capacitors, 7 resistors, 5 ICs, 3 connectors and 3 switches.
Main components
1README
README.mdliclock
the libre chess clock
This document is a work in progress!
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 0.1µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5 |
| 3 | 100Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3 |
| 3 | MountingHole_Pad | MountingHole:MountingHole_3.5mm_Pad_TopBottom | H1, H2, H3 |
| 2 | 2.7kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9, C10 |
| 2 | Conn_01x04 | chess_clock:2005290040 | J1, J2 |
| 2 | Display Driver | chess_clock:ICM7211AMIPL | U1, U2 |
| 2 | LCD-S401C71TR | chess_clock:LCD-S401C71TR | LCD1, LCD2 |
| 2 | MX Grey w/ LED | chess_clock:MX_LED | SW1, SW2 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 10µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | 1241.1100.7095 | chess_clock:MCS 18 Front | SW3 |
| 1 | 12kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 27kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 32kHz | chess_clock:CM315D32768HZFT | Y1 |
| 1 | 47μH | chess_clock:Inductor_6060 | L1 |
| 1 | 68µF | chess_clock:TPSD686K010R0100 | C6 |
| 1 | Buzzer | chess_clock:CT-1205H-SMT | LS1 |
| 1 | MCU | chess_clock:ATTINY1627 | U3 |
| 1 | NOR, 2 Channels | chess_clock:TC7WZ32FK_LJCT | U4 |
| 1 | Red low battery Indicator | chess_clock:150060RS75000 | LED1 |
| 1 | Schottky Diode | chess_clock:B240AE-13 | D1 |
| 1 | UPDI | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | Voltage Regulator | chess_clock:MAX1836EUT50+T | U5 |
| 1 | ~9V | chess_clock:BATTERY | BT1 |
Questions
How big is the Liclock PCB?
It measures 176 × 58 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Liclock use?
39 parts, built around the LCD-S401C71TR. 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 Liclock KiCad files?
From the MichaelDarr/liclock repository on GitHub, at the commit this page was made from: the board is pcb/pcb.kicad_pcb and its schematic pcb/pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Liclock design in my own project?
Its repository publishes it under the GPL-3.0 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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