4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers30.2 × 42.6 mm
Decade counter
mage0r/decade_counter1Decade counter with attiny and i2c
- Size
- 30.2 × 42.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 17
- Pads
- 51
- Tracks, vias
- 133, 12
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 24 May 2014
- Updated
- 1 Jun 2014
Overview
Decade counter is an open-source printed circuit board by mage0r, from the mage0r/decade_counter repository on GitHub. It is a 2-layer board of 30.2 × 42.6 mm with 26 parts on 17 nets, routed with 133 tracks and 12 vias.
It is built around the WS2812B. Its parts include 12 connectors, 9 resistors, 2 ICs and 1 capacitor. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdAttiny 85 Decade Counter
This project puts an attiny 85 and a neopixel into a decade counter.
The decade counter in question is available from adafruit (http://www.adafruit.com/products/1082 "Mechanical Decade Counters"). Each stock counter has 10 pins and a common ground, with this replacement board the values can be read using an i2c connection on a common bus.
There are three sections, the circuit design for kicad, an arduino sketch with some awful code in it and lastly a few photos of the finished product.
The neopixel was included to hopefully shine some rgb light out the viewing window. However in practice this light can't be seen. 3D printing a replacement dial is the next step in this project.
CREDITS
This project was designed by John Spencer - john.spencer.9000@gmail.com - https://github.com/mage0r
SPECIAL THANKS
To the HackMelbourne (CCHS, http://hackmelbourne.org) community of Melbourne, Australia.
To all other open-source developers whose countless hours supported every other aspect of this design.
DISTRIBUTION
The specific terms of distribution of this project are governed by the license referenced below. Please contact the copyright owner if you wish to modify the board for distribution. Please utilize this design for personal or research projects. Please acknowledge all contributors.
LICENSE
Licensed under the TAPR Open Hardware License (www.tapr.org/OHL). The "license" sub-folder also contains a copy of this license in plain text format.
Copyright John Spencer 2014 john.spencer.9000@gmail.com
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 220 | SM0603 | R1, R2, R3, R4, R5, R6, R7, R8, R9 |
| 1 | 10UF | SM0603 | C1 |
| 1 | ATTINY85-S | SOIC8_W | IC2 |
| 1 | CONN_3X2 | PIN_ARRAY-6X1 | P11 |
| 1 | POS_0 | position | P10 |
| 1 | POS_1 | position | P9 |
| 1 | POS_2 | position | P8 |
| 1 | POS_3 | position | P7 |
| 1 | POS_4 | position | P6 |
| 1 | POS_5 | position | P5 |
| 1 | POS_6 | position | P4 |
| 1 | POS_7 | position | P3 |
| 1 | POS_8 | position | P2 |
| 1 | POS_9 | position | P1 |
| 1 | Rail | Rail | P12 |
| 1 | WS2812B | ws2812b | IC1 |
| 1 | hole_1 | holes | holes |
| 1 | hole_2 | holes | holes2 |
Questions
How big is the Decade counter PCB?
It measures 30.2 × 42.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Decade counter use?
26 parts, built around the 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 Decade counter KiCad files?
From the mage0r/decade_counter repository on GitHub, at the commit this page was made from: the board is Circuit/decade_counter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Decade counter design in my own project?
Its repository states no licence, so its author keeps all rights: ask mage0r before reusing the design.
Similar boards
- 2 layers26 × 30 mm
Microcontroller
FrameworkComputer/ExpansionCards
Reference designs and documentation to create Expansion Cards for the Framework Laptop
34 parts1.1kCC-BY-4.0 - 4 layers82.6 × 82.5 mm
- 2 layers95.3 × 161.9 mm
- 2 layers42.8 × 28.8 mm
MM Skirt
PrintersForAnts/Micron
If you want to purchase full kits there are 3 available (Kits are slowly updating to R1 hardware just make sure to double check the included hardware in your kit and if you have any questions reach out in the discord)
11 parts741GPL-3.0 - 2 layers149.6 × 127.1 mm
- 2 layers285.5 × 95 mm
- 2 layers177.7 × 144.5 mm
