2 layers268.5 × 110.3 mm
2 layers54.5 × 29.5 mm
Neoclock
zerowidth/neoclock1ATtiny84 firmware and PCB for neoclock project
- Size
- 54.5 × 29.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 29
- Pads
- 78
- Tracks, vias
- 168, 25
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 15 Feb 2015
- Updated
- 30 Mar 2015
Overview
Neoclock is an open-source printed circuit board by zerowidth, from the zerowidth/neoclock repository on GitHub. It is a 2-layer board of 54.5 × 29.5 mm with 18 parts on 29 nets, routed with 168 tracks and 25 vias.
It is built around the DS3231MZ+ and CR163223F. Its parts include 4 connectors, 4 switches, 3 capacitors, 3 resistors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
DS3231MZ+
SOIC-8-40℃~+85℃ 2.3V~5.5V I2C Temperature compensation、Backup power management and battery charging、Alarm function、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
CR163223F
0603-55℃~+155℃ 100mW 322kΩ Thick Film Resistor ±1% ±100ppm/℃ 0603 Chip Resistor - Surface Mount ROHSMeritekChip Resistor - Surface Mount
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 4.7k | Resistors_SMD:R_0805 | R1, R2, R3 |
| 2 | 0.1uF | Capacitors_SMD:C_0805 | C1, C2 |
| 1 | 100uF | NeoClock:CP_Panasonic_SV_D | C3 |
| 1 | ATTINY84-S | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | IC1 |
| 1 | AVR-ISP-6 | NeoClock:Pin_Header_Straight_2x03_Plain | ISP1 |
| 1 | Button 1 | NeoClock:BTN_E_Switch_TL1105 | SW1 |
| 1 | Button 2 | NeoClock:BTN_E_Switch_TL1105 | SW2 |
| 1 | Button 3 | NeoClock:BTN_E_Switch_TL1105 | SW3 |
| 1 | CR1632 | NeoClock:BAT_Keystone_3012TR_16mm | BT1 |
| 1 | DS3231MZ+ | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | IC2 |
| 1 | NeoPixel Ring | NeoClock:Pin_Header_Straight_1x03_Plain | P3 |
| 1 | Photoresistor | NeoClock:Pin_Header_Straight_1x02_Plain | P1 |
| 1 | RESET | NeoClock:BTN_E_Switch_TL1105 | SW4 |
| 1 | Serial | NeoClock:Pin_Header_Straight_1x03_Plain | P2 |
| 1 | USB-MICRO-B | NeoClock:CONN_Molex_USB_Micro_SMT | CON1 |
Questions
How big is the Neoclock PCB?
It measures 54.5 × 29.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Neoclock use?
18 parts, built around the DS3231MZ+ and CR163223F. 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 Neoclock KiCad files?
From the zerowidth/neoclock repository on GitHub, at the commit this page was made from: the board is pcb/neoclock.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Neoclock design in my own project?
Its repository states no licence, so its author keeps all rights: ask zerowidth before reusing the design.
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