

Gearclock
decorative celestial clock
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 40
- Pads
- 192
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 4
- Created
- 17 Feb 2014
- Updated
- 12 Jun 2015
Overview
Gearclock is an open-source printed circuit board by wyolum, from the wyolum/Celeste repository on GitHub, published under the MIT licence. It is a 2-layer board with 45 parts on 40 nets.
It is built around the ATMEGA328-PU, ADXL345-EP and DS3231N/DIP, with the WS2812B among its other parts. Its parts include 14 capacitors, 9 connectors, 5 resistors, 5 ICs and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)ADXL345-EP
LGA-14(3x5x0.8)LGA-14(3x5x0.8) New Arrivals ROHSAnalog DevicesUncategorisedDS3231N/DIP
--40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Programmable clock output、Alarm function - Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksWS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdParts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | IO | gearclock_fp:IO | B1, B2, B3, B4, P8, P9, P10 |
| 6 | 100n | gearclock_fp:c_0805 | C3, C4, C5, C9, C10, C14 |
| 4 | 10k | gearclock_fp:r_0805 | R1, R2, R3, R10 |
| 2 | 100nF | gearclock_fp:c_0805 | C12, C13 |
| 2 | 1u | gearclock_fp:c_0805 | C6, C7 |
| 2 | 22p | gearclock_fp:c_0805 | C1, C2 |
| 1 | 10uF | gearclock_fp:C_ELCO_SMD | C11 |
| 1 | 3V3 | gearclock_fp:SOT23-3 | U3 |
| 1 | 3V3_In | gearclock_fp:Pin_Header_Straight_1x02 | P12 |
| 1 | 47uF_25V | gearclock_fp:C_ELCO_SMD | C8 |
| 1 | 750E | gearclock_fp:r_0805 | R4 |
| 1 | 8MHz | gearclock_fp:Xtal_SMD4 | X1 |
| 1 | ADXL345 | gearclock_fp:ADXL345 | U5 |
| 1 | ATMEGA328P | gearclock_fp:TQFP32 | U1 |
| 1 | Batt_RTC | gearclock_fp:CR2032 | BT1 |
| 1 | DS3231N | gearclock_fp:DS3231 | U4 |
| 1 | FTDI | gearclock_fp:Header_FTDI | P2 |
| 1 | GPS | gearclock_fp:Pin_Header_Straight_1x09 | P11 |
| 1 | Hall_Sensor | gearclock_fp:SOT23-3 | U2 |
| 1 | ISP | gearclock_fp:Header_ISP | P1 |
| 1 | Motor | gearclock_fp:Pin_Header_Straight_1x04 | P5 |
| 1 | Motor_L | gearclock_fp:Pin_Header_Straight_1x08 | P7 |
| 1 | Motor_R | gearclock_fp:Pin_Header_Straight_1x08 | P6 |
| 1 | RST | gearclock_fp:Switch_SMT | SW1 |
| 1 | SD_CARD_Micro | gearclock_fp:SD_Micro | SD1 |
| 1 | SW_EXT | gearclock_fp:Pin_Header_Straight_1x03 | P3 |
| 1 | WS2812B | gearclock_fp:RGB_WS2811B | LED1 |
| 1 | WallW | gearclock_fp:BARREL_JACK | P13 |
Questions
What parts does the Gearclock use?
45 parts, built around the ATMEGA328-PU, ADXL345-EP, DS3231N/DIP and WS2812B. 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 Gearclock KiCad files?
From the wyolum/Celeste repository on GitHub, at the commit this page was made from: the board is KiCAD/gearclock.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Gearclock design in my own project?
Its repository publishes it under the MIT 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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