2 layers20.5 × 24.8 mm
2 layers
Schematics
gbene/Electronic-CompassRepository for the Electronic Compass project
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 31
- Pads
- 56
- Tracks, vias
- 76, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Dec 2020
- Updated
- 23 Dec 2020
Overview
Schematics is an open-source printed circuit board by gbene, from the gbene/Electronic-Compass repository on GitHub. It is a 2-layer board with 8 parts on 31 nets, routed with 76 tracks and 0 vias.
Its parts include 3 ICs, 2 resistors and 2 switches. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdReadme
This is the readme file for the Electronic Compass (E.C.) project. This project has the aim to create a low-cost, open-source electronic geological compass. This repository has the objective to document and share the hardware construction process and software development needed.
The planned compass features are:
- Measure dip and dip direction of a plane
- Measure strike slip, trend and plunge
- Different measures profiles
- Automatic txt files save
- Acceletometer and magnetometer calibration
- More to come!
Licences
Since the E.C. project covers hardware and software licences that cover both are necessary. You can find the choosen licences in the "Licences folder" in PDF and .txt format.
| Type | License name | Source link |
|---|---|---|
| Software | GNU General Public License v3.0 or later | SPDX |
| Hardware | CERN-OHL-S-2.0 or any later version | OHWR |
Table: Licences used
The copyrights to both hardware and software are explicited in the copyright.pdf and copyright.md files and the original copies are stored in the License folder. If you want to apply any kind of change you always need to log it in the changes.md file and include all the original source and copyright files as per licences.
Components list
The Electronic Compass components are searched to be the most cost-effective and easy to solder available that I could find. I provide the links from where the components are purchased but some are europe based (mostly Germany) so check if worldwide shipping is convenient or not.
| Component Name | Quantity | Price | Link |
|---|---|---|---|
| Adafruit adalogger M0 | x1 | 26€ | ThePiHut |
| GY-61 ADXL335 acceletometer | x1 | €6.79 | AZ-Delivery |
| 128x32 Oled display | x1 | €6.29 | AZ-Delivery |
| GY-271 QMC5883L magnetometer | x1 | €5.79 | AZ-Delivery |
| SD card | x1 | may vary | Amazon |
| 1200mAh 3.7V LiPo battery | x1 | 5.36€ | Welectron |
| Potentiometer | x1 | ? | Amazon |
| Buttons | x? | ? | Amazon |
Table: Table of components
Software used
To have a truly open-source project the software used is 100% free and open-source from the CAD project files to the software used to code and flash the code on the adalogger chip.
| Type | Software program | Source link |
|---|---|---|
| CAD | FreeCAD | FreeCAD |
| Electronics | KiCad EDA | KiCad |
| Code environment and upload | ArduinoIDE | Arduino |
Table: Software used
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 2 | SW_Push_Dual_x2 | Button_Switch_THT:SW_PUSH_6mm_H4.3mm | SW1, SW2 |
| 1 | Arduino_UNO_R2 | Module:Arduino_UNO_R2 | A1 |
| 1 | GY-271_QMC5883L | breakout_boards:GY-271_QMLC5883L | U2 |
| 1 | GY-61_ADXL335 | breakout_boards:GY-61_ADXL335 | U3 |
| 1 | OLED_128x32 | breakout_boards:OLED_128x32 | U1 |
Questions
What parts does the Schematics use?
8 parts. 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 Schematics KiCad files?
From the gbene/Electronic-Compass repository on GitHub, at the commit this page was made from: the board is Hardware/Schematics/KiCad/v1/v1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Schematics design in my own project?
Its repository states no licence, so its author keeps all rights: ask gbene before reusing the design.
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