2 layers29 × 57 mm
2 layers80 × 56 mm
Smalltime
cillian64/smalltimeLittle LED desk clock with TCXO RTC
- Size
- 80 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 57
- Pads
- 233
- Tracks, vias
- 893, 88
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 5 (file 20170123)
- Created
- 19 Jul 2017
- Updated
- 2 Dec 2022
Overview
Smalltime is an open-source printed circuit board by cillian64, from the cillian64/smalltime repository on GitHub. It is a 2-layer board of 80 × 56 mm with 48 parts on 57 nets, routed with 893 tracks and 88 vias.
It is built around the STM32F030K6T6, TEPT4400 and DS3231MZ/V+. Its parts include 11 resistors, 11 ICs, 9 transistors, 8 capacitors and 3 connectors. It belongs with the STM32 boards of this library.
Main components
3
STM32F030K6T6
LQFP-32(7x7)-40℃~+85℃ 12bit 2.4V~3.6V 26 32 Bit 32KB 48MHz 4KB ARM Cortex-M0 Built-in FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TEPT4400
插件,P=2.54mm-40℃~+85℃ 3nA Light Intensity 插件,P=2.54mm Ambient Light Sensors ROHSVishay IntertechnologyAmbient Light Sensors
DS3231MZ/V+
SOIC-8-40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Alarm function、Locking and tamper-proof、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
README
README.mdsmalltime
Little LED desk clock with TCXO RTC
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 160 | agg:0603 | R4, R5, R6, R7, R8, R9, R10, R11 |
| 8 | Q_NMOS_GSD | agg:SOT-23 | Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 3 | 100n | agg:0603 | C4, C5, C6 |
| 3 | 1u | agg:0603 | C2, C7, C8 |
| 2 | 1k | agg:0603 | R1, R2 |
| 1 | 100k | agg:0603 | R3 |
| 1 | 10n | agg:0603 | C1 |
| 1 | 4u7 | agg:0603 | C3 |
| 1 | ADP3338 | agg-unchecked:SOT223 | IC3 |
| 1 | CR1220/1225 | smalltime:KEYSTONE500 | BT1 |
| 1 | DIG1 | smalltime:LS0803GWK | U1 |
| 1 | DIG2 | smalltime:LS0803GWK | U2 |
| 1 | DIG3 | smalltime:LS0803GWK | U3 |
| 1 | DIG4 | smalltime:LS0803GWK | U4 |
| 1 | DIG5 | smalltime:LS0803GWK | U5 |
| 1 | DIG6 | smalltime:LS0803GWK | U6 |
| 1 | DIG7 | smalltime:LS0803GWK | U7 |
| 1 | DIG8 | smalltime:LS0803GWK | U8 |
| 1 | DS3231MZ | agg:SOIC-8 | IC2 |
| 1 | GND | smalltime:testpoint | TP3 |
| 1 | INC | smalltime:SKHHLSA010 | SW1 |
| 1 | MICROUSB | agg:MICROUSB_MOLEX_47589-0001 | J1 |
| 1 | SCL | smalltime:testpoint | TP2 |
| 1 | SDA | smalltime:testpoint | TP1 |
| 1 | SET | smalltime:SKHHLSA010 | SW2 |
| 1 | STM32F030K6T6 | agg:LQFP-32 | IC1 |
| 1 | SWD | agg:FTSH-105-01-F-D-K | P1 |
| 1 | SWD_TC | agg:TC2030-NL | P2 |
| 1 | TEPT4400 | LEDs:LED_D3.0mm | Q1 |
Questions
How big is the Smalltime PCB?
It measures 80 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Smalltime use?
48 parts, built around the STM32F030K6T6, TEPT4400 and DS3231MZ/V+. 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 Smalltime KiCad files?
From the cillian64/smalltime repository on GitHub, at the commit this page was made from: the board is board/smalltime.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Smalltime design in my own project?
Its repository states no licence, so its author keeps all rights: ask cillian64 before reusing the design.
Similar boards
- 2 layers140 × 135 mm
Compoudrier Bas
favsidv/createch_compoudrier
Ce projet consiste à concevoir, sous KiCad, les cartes électroniques d'un Compoudrier inspiré de Totally Spies. L'objectif est de réunir un écran principal, des commandes de navigation et une horloge dans un objet…
90 parts - 2 layers54.7 × 69 mm
- 2 layers88.9 × 38.1 mm
- 2 layers63.5 × 33 mm
- 2 layers168 × 51 mm
- 4 layers243.8 × 171.5 mm
- 2 layers22 × 41 mm
RSTM32F030K6T6
r-pv/STM32F030K6
Custom board for the STM32F30K6T6 MCU, compatible with STM32Duino (Arduino).
23 parts11GPL-3.0