QEDA
QEDA is a Node.js library aimed to simplify creating libraries of electronic components for using in EDA software. You can easily create both symbols for schematic and land patterns for PCB.
Features
- Downloading component definitions from global repository
- Generating schematic symbols:
- Single and multi part IC (dual-in-line, quad)
- Connector
- Capacitor, crystal, diode, FET, fuse, inductor, LED, pushbutton, resistor, switch, test point, transistor, TVS
- Power supply, ground
- GOST style alternative
- Borrowing packages dimensions from standards:
- Industrial (JEDEC, JEITA)
- Manufacturer's (NXP)
- Land pattern calculation according to IPC-7351 (tending to comply latest IPC-7351C):
- Chip Array
- Dual (CFP, DIP, SOIC, SOJ, SOL, SON, SOP)
- Grid Array (BGA, CGA, LGA)
- Mounting hole
- Oscillator (corner concave, side concave, side flat)
- Quad (CQFP, QFN, QFP)
- Radial lead (Cylindrical)
- SOT (SOT143, SOT223, SOT23, SOTFL)
- Test point
- TO (*PAK)
- Two Pin (Aluminum Electrolytic Capacitor, Chip, Crystal, Molded body, MELF, SOD, SODFL)
- Custom element
- Generating libraries:
- KiCad format
- 3D models generation
Installation
QEDA module for using in scripts as well as command line interface:
npm install -g qeda
Examples
First example will download component descriptions from library repository then save them to disk and add to library manager. Last string is to generate component library in KiCad format (schematic symbols for Eeschema as well as PCB footprints for PcbNew).
CLI
Run in terminal (note that component names are case insensitive but power and ground nets are not):
qeda reset
qeda add altera/5m1270zt144
qeda add analog/ad9393
qeda add st/l3gd20h
qeda add ti/iso722
qeda power +5VDC
qeda power +3V3DC
qeda ground GNDDC
qeda ground signal/GNDS
qeda ground earth/GNDE
qeda ground chassis/GNDCH
qeda generate mylib
And find generated files in ./kicad
directory.
Read more about available commands.
From script
Example is written on CoffeeScript but one can use vanilla JavaScript.
Qeda = require 'qeda' lib = libadd 'Altera/5M1270ZT144' # Add Altera MAX V CPLD libadd 'Analog/AD9393' # Add Analog Devices HDMI interface libadd 'ST/L3GD20H' # Add STMicroelectronics gyroscope libadd 'TI/ISO722' # Add Texas Instruments digital isolator libpower '+5VDC' # Add power supply symbol libpower '+3V3DC' # Add another power supply symbol libground 'GNDDC' # Add ground symbol libground 'Signal/GNDS' # Add signal ground symbol libground 'Earth/GNDE' # Add earth ground symbol libground 'Chassis/GNDCH' # Add chassis ground symbol libgenerate 'mylib'
Run it:
coffee script.coffee
And find generated files in ./kicad
directory.
Custom component description
Any electronic component is described using YAML-file located in ./library
directory (or some subdirectory within). You can clone all available descriptions from https://github.com/qeda/library, add your ones, copy from any source. Then just point correspondent path as parameter for qeda add ...
command or Qeda.Library.add
method (without ./library/
prefix and .yaml
suffix).
name: Dummy pinout: DIN: 1 ~DOUT: 2 Vcc: 3 GND: 4, 5 NC: 6-8 properties: power: Vcc ground: GND in: DIN out: ~DOUT nc: NC inverted: ~DOUT schematic: symbol: IC left: DIN, NC right: ~DOUT, NC top: Vcc bottom: GND housing: outline: JEDEC MS-012 AA
Read more about component description.
Then run in terminal:
qeda reset
qeda add dummy
qeda generate dummy
Or create custom.coffee:
Qeda = require 'qeda' lib = libadd 'Dummy' # Adding custom element libgenerate 'dummy'
And run:
coffee custom.coffee
Result:
Documentation
Please refer to Documentation section on the website for additional information.
License
Source code is licensed under MIT license.
Coming soon
- Generating libraries:
- Eagle XML format
- SMD land pattern calculation:
- LCC
- PLCC
- Through-hole land pattern calculation:
- Axial lead
- Oscillator
- PGA
- Radial lead
- SIP
- TO (Flange mount)
- TO (Cylindrical)
- Wire