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Created March 29, 2024 05:56
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.kicad_sym to .lib - import Kicad 6 symbol into Flux AI
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README.md

KiCad Symbol to Library Converter (.kicad_sym to .lib)

This Python script converts KiCad symbol files (.kicad_sym) into a symbol library (.lib), simplifying the integration of new components into your KiCad projects.

Features

  • Automated Conversion: The script analyzes .kicad_sym files and generates KiCad-compatible .lib files.
  • Data Preservation: Preserves essential symbol information such as names, connection points, and properties.
  • Simple Interface: Easy to use via the command line.

Requirements

  • Python 3.x
  • sexpdata package (installable via pip install sexpdata)

Usage

  1. Clone or download this repository to your local machine.
  2. Ensure you have Python 3.x installed on your system.
  3. Install the sexpdata package using the following command:
pip install sexpdata
  1. Run the script by providing the .kicad_sym file you want to convert, replace input_file.kicad_sym with the path and name of your .kicad_sym file, and output_file.lib with the desired name for the resulting .lib file.:
python3 sym2lib.py input_file.kicad_sym > output_file.lib
  1. The resulting .lib file will be available in the specified directory.

Please note that the use of this script is at your own risk. The author takes no responsibility for any consequences arising from its usage.

Contributions

Contributions are welcome! If you find any bugs or have ideas for improvements, feel free to open an issue or submit a pull request.

License

This project is licensed under the MIT License. See the LICENSE file for more details.

Raw
kicadsym2lib.py
import sys
from sexpdata import loads, dumps, Symbol
lib_header = """EESchema-LIBRARY Version 2.4
#encoding utf-8"""
lib_footer = """#
#End Library"""
symbol_header = """#
# {NAME}
#
DEF {NAME} U 0 40 Y Y 1 F N
F0 "U" 0 -250 60 H V C CNN
F1 "{NAME}" 0 -350 60 H V C CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
DRAW"""
symbol_footer = """ENDDRAW
ENDDEF
"""
def read_data(path):
with open(path) as f:
return f.read()
symbol_pts = Symbol('pts')
symbol_xy = Symbol('xy')
def write_polyline(pts):
if pts[0] == symbol_pts:
points = []
for xy in pts[1:]:
if xy[0] == symbol_xy:
x = xy[1] / 0.0254
y = xy[2] / 0.0254
points.append("{:.0f} {:.0f}".format(x, y))
print("P {COUNT} 0 1 0 {POINTS} N".format(
COUNT=len(points), POINTS=" ".join(points)))
def write_pin(pin):
t = {"input": "I", "output": "O", "bidirectional": "B", "power_in": "W"}[pin[1].value()]
name = ""
for p in pin[3:]:
if isinstance(p, list):
tag = p[0].value()
if tag == "at":
x = int(p[1] / 0.0254)
y = int(p[2] / 0.0254)
direction = {90: "U", 0: "R", 270: "D", 180: "L"}[p[3]]
elif tag == "length":
length = int(p[1] / 0.0254)
elif tag == "name":
name = p[1]
height1 = 50
elif tag == "number":
number = p[1]
height2 = 50
if name != "":
s = "X {NAME} {NUMBER} {X} {Y} {LENGTH} {DIRECTION} {HEIGHT1} {HEIGHT2} 1 1 {TYPE}".format(
NAME=name, NUMBER=number, X=x, Y=y, LENGTH=length,
DIRECTION=direction, HEIGHT1=height1, HEIGHT2=height2, TYPE=t)
print(s)
def main():
if len(sys.argv) != 2:
print("Pass kicad_sym file to convert")
return
path = sys.argv[1]
data = read_data(path)
symbol_tag = Symbol('symbol')
symbol_rectangle = Symbol('rectangle')
symbol_polyline = Symbol('polyline')
symbol_pin = Symbol('pin')
s = loads(data)
print(lib_header)
for symbol in s[3:]:
if symbol[0] == symbol_tag:
name = symbol[1].split(' ')[0] # Ajuste para extraer solo el nombre del símbolo
header = symbol_header.format(NAME=name)
print(header)
for elem in symbol[3:]:
if elem[0] == symbol_tag:
for items in elem[2:]:
if items[0] == symbol_rectangle:
continue
elif items[0] == symbol_polyline:
write_polyline(items[1])
elif items[0] == symbol_pin:
write_pin(items)
print(symbol_footer)
print(lib_footer)
main()
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