### LibrePCB Library Installation Instructions

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

Provides two methods for installing the Cree LED library into a LibrePCB project: cloning the repository directly into the local libraries directory or adding it as a remote library via the LibrePCB GUI. Includes a command to verify the library's integrity.

```bash
# Method 1: Clone directly into LibrePCB libraries directory
cd ~/.local/share/librepcb/libraries/local/
git clone https://github.com/LibrePCB-Libraries/Cree.lplib.git

# Method 2: Add as remote library in LibrePCB
# In LibrePCB: Tools → Library Manager → Add Remote Library
# URL: https://github.com/LibrePCB-Libraries/Cree.lplib

# Verify library integrity
librepcb-cli open-library --all --strict --check --minify-step Cree.lplib/

# Expected output:
# Open library 'Cree.lplib/'...
# Process all elements...
# Check library...
# SUCCESS

```

--------------------------------

### Verify Library Installation using librepcb-cli

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

This bash command uses the librepcb-cli tool to open a library and verify that all dependencies are installed. The `--all` flag ensures that all components, symbols, and categories are checked for the specified library.

```bash
# Verify all dependencies are installed
librepcb-cli open-library --all Cree.lplib/

```

--------------------------------

### Install LibrePCB Base Library Dependency

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

This command clones the LibrePCB Base library from its official GitHub repository. This is a prerequisite for using the Cree LED library, as it provides shared components and definitions.

```shell
cd ~/.local/share/librepcb/libraries/local/
git clone https://github.com/LibrePCB-Libraries/LibrePCB_Base.lplib.git
```

--------------------------------

### Add Custom Cree LED Device Variant (S-expression)

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

This S-expression template demonstrates how to add a new device variant for a Cree JB3030 LED. It defines attributes like power rating, forward voltage, color temperature (CCT), and color rendering index (CRI). The CRI_CODE and CCT_CODE are mapped to specific values, and an example shows how to create a 3000K CRI 80 variant.

```lisp
# Add to dev/0cdaca73-8d0e-4dc7-a8d9-1e1b468d19aa/device.lp

# Template for new JB3030 3V part variant
(part "JB3030AWT-P-[CRI_CODE][CCT_CODE]EA0000-N0000001" (manufacturer "CreeLED")
 (attribute "POWER_RATING" (type power) (unit watt) (value "0.2"))
 (attribute "FORWARD_VOLTAGE" (type voltage) (unit volt) (value "3"))
 (attribute "NOMINAL_CCT" (type string) (unit none) (value "[CCT] K"))
 (attribute "MINIMUM_CRI" (type string) (unit none) (value "[CRI]"))
 (attribute "COLOR" (type string) (unit none) (value "white"))
)

# CRI_CODE mapping:
#   B = CRI 70
#   H = CRI 80
#   U = CRI 90

# CCT_CODE mapping:
#   22 = 2200 K (warm)
#   27 = 2700 K
#   30 = 3000 K
#   35 = 3500 K
#   40 = 4000 K (neutral)
#   50 = 5000 K
#   57 = 5700 K
#   65 = 6500 K (cool)

# Example: Add 3000K CRI 80 part
(part "JB3030AWT-P-H30EA0000-N0000001" (manufacturer "CreeLED")
 (attribute "POWER_RATING" (type power) (unit watt) (value "0.2"))
 (attribute "FORWARD_VOLTAGE" (type voltage) (unit volt) (value "3"))
 (attribute "NOMINAL_CCT" (type string) (unit none) (value "3000 K"))
 (attribute "MINIMUM_CRI" (type string) (unit none) (value "80"))
 (attribute "COLOR" (type string) (unit none) (value "white"))
)

# After adding, validate with:
# librepcb-cli open-library --all --strict --check .

```

--------------------------------

### LibrePCB SMT Package Definition - CREE_Jx3030

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

Defines the SMT package footprint for Cree J Series 3030 LEDs. Includes pad definitions, silkscreen, and documentation layers according to datasheet recommendations and LibrePCB constraints.

```lisp
(librepcb_package ad3fb64f-2c73-4668-bb4c-2b4a34958a70
 (name "CREE_Jx3030")
 (description "Solder pads according to recommendations in datasheet (https://www.mouser.de/datasheet/2/90/data-sheet-JSeries-3030-1224352.pdf) within the constraints allowed by LibrePCB.")
 (keywords "venture,j-series")
 (author "J. R. Schmid")
 (version "0.2")
 (created 2020-05-23T14:20:05Z)
 (deprecated false)
 (generated_by "")
 (category 0764a19f-0b33-4927-906a-f4d6c522841d)
 (category 122a5d91-f92d-4bfb-a9a4-9e71d8e56117)
 (assembly_type smt)
 (pad 3cbbb83b-6dfd-422b-95b5-b31600bb290d (name "C")),
 (pad 44222ae2-bc33-41d3-b585-fcdd5331e55a (name "A"))
 (footprint d7ce9a67-0071-4fd6-b350-4f01dc11dd09
  (name "default")
  (description "")
  (3d_position 0.0 0.0 0.0) (3d_rotation 0.0 0.0 0.0)
  (pad 3cbbb83b-6dfd-422b-95b5-b31600bb290d (side top) (shape roundrect)
   (position -0.71 0.0) (rotation 0.0) (size 1.3 2.4) (radius 0.0)
   (stop_mask auto) (solder_paste auto) (clearance 0.0) (function standard)
   (package_pad 3cbbb83b-6dfd-422b-95b5-b31600bb290d)
  )
  (pad 44222ae2-bc33-41d3-b585-fcdd5331e55a (side top) (shape roundrect)
   (position 1.06 0.0) (rotation 0.0) (size 0.6 2.4) (radius 0.0)
   (stop_mask auto) (solder_paste auto) (clearance 0.0) (function standard)
   (package_pad 44222ae2-bc33-41d3-b585-fcdd5331e55a)
  )
  (polygon 2cc0899f-7b4d-4421-bc36-0a8bec8f9727 (layer top_legend)
   (width 0.1) (fill false) (grab_area true)
   (vertex (position -1.56 1.56) (angle 0.0))
   (vertex (position 1.56 1.56) (angle 0.0))
   (vertex (position 1.56 -1.56) (angle 0.0))
   (vertex (position -1.56 -1.56) (angle 0.0))
   (vertex (position -1.56 1.56) (angle 0.0))
  )
  (circle 8d009fbb-d3ce-4999-a176-c524261a4ec8 (layer top_legend)
   (width 0.0) (fill true) (grab_area false) (diameter 0.2) (position -1.8 -1.8)
  )
  (stroke_text a0f15692-970c-494d-a8b2-04bb1269a6ae (layer top_names)
   (height 1.0) (stroke_width 0.2) (letter_spacing auto) (line_spacing auto)
   (align center bottom) (position 0.0 2.2) (rotation 0.0)
   (auto_rotate true) (mirror false) (value "{{NAME}}")
  )
  (stroke_text c768f800-4b81-4c27-aa51-5daca75ebcbb (layer top_values)
   (height 1.0) (stroke_width 0.2) (letter_spacing auto) (line_spacing auto)
   (align center top) (position 0.0 -2.2) (rotation 0.0)
   (auto_rotate true) (mirror false) (value "{{VALUE}}")
  )
 )
 (approved missing_footprint_3d_model
  (footprint d7ce9a67-0071-4fd6-b350-4f01dc11dd09)
 )
)
```

--------------------------------

### LibrePCB Library Directory Structure

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

Illustrates the standard directory layout for a LibrePCB component library, including main metadata, shared packages, package categories, and device definitions. This structure helps in organizing and managing library components.

```bash
repo/
├── library.lp                                    # Main library metadata
├── pkg/ad3fb64f-2c73-4668-bb4c-2b4a34958a70/    # Shared package
│   └── package.lp                                 # CREE_Jx3030 footprint
├── pkgcat/122a5d91-f92d-4bfb-a9a4-9e71d8e56117/ # Package category
│   └── package_category.lp
└── dev/                                          # Device definitions
    ├── 0cdaca73-8d0e-4dc7-a8d9-1e1b468d19aa/    # JB3030 3V (0.2W, 21 parts)
    │   └── device.lp
    ├── 6ee5b5bb-b885-4b25-8bbf-68f0fdb98828/    # JK3030 6V (1W, 22 parts)
    │   └── device.lp
    └── af366125-3e8b-4032-8e11-0404ebcb3366/    # JK3030 3V (1W, 21 parts)
        └── device.lp

# Device part naming pattern
JB3030AWT-P-[B/H/U][CCT]EA0000-N0000001
         │    └─┬─┘ └─┬─┘
         │      │     └─── Color temperature (27=2700K, 65=6500K)
         │      └───────── CRI rating (B=70, H=80, U=90)
         └──────────────── Power series (JB=0.2W, JK=1W)

```

--------------------------------

### Parse Device Attributes with Python

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

This Python script parses a device.lp file to extract part variants and their specifications. It uses regular expressions to match part definitions and their attributes, then returns a list of parts with their manufacturer, part number, and attributes.

```python
import re

def parse_device_attributes(device_file_path):
    """Extract all part variants and their specifications from a device.lp file."""
    parts = []

    with open(device_file_path, 'r') as f:
        content = f.read()

    # Regex to match part definitions
    part_pattern = r'\(part "([^"]+)" \(manufacturer "([^"]+)"\)(.*?)\n \)'

    for match in re.finditer(part_pattern, content, re.DOTALL):
        part_number, manufacturer, attributes = match.groups()

        # Extract attributes
        attr_pattern = r'\(attribute "([^"]+)" \(type ([^)]+)\) \(unit ([^)]+)\) \(value "([^"]+)"\)\)'
        attrs = {}
        for attr_match in re.finditer(attr_pattern, attributes):
            name, type_, unit, value = attr_match.groups()
            attrs[name] = {'type': type_, 'unit': unit, 'value': value}

        parts.append({
            'part_number': part_number,
            'manufacturer': manufacturer,
            'attributes': attrs
        })

    return parts

# Usage
parts = parse_device_attributes('dev/0cdaca73-8d0e-4dc7-a8d9-1e1b468d19aa/device.lp')
for part in parts:
    print(f"{part['part_number']}: "
          f"{part['attributes']['NOMINAL_CCT']['value']}, "
          f"CRI {part['attributes']['MINIMUM_CRI']['value']}, "
          f"{part['attributes']['POWER_RATING']['value']}W")

```

--------------------------------

### LibrePCB Library Definition

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

Defines the root configuration for the LibrePCB library, including metadata, version, author, and dependencies. This S-expression format is standard for LibrePCB library files.

```lisp
(librepcb_library cb2a5d4e-c784-4d14-8d82-033285fd4843
 (name "Cree")
 (description "LEDs by Cree (unofficial).")
 (keywords "cree,leds")
 (author "LibrePCB")
 (version "0.2")
 (created 2020-06-14T16:51:51Z)
 (deprecated false)
 (url "https://github.com/LibrePCB-Libraries/Cree.lplib")
 (dependency a9ddf0c6-9b1c-4730-b300-01b4f192ad40)
 (manufacturer "CreeLED")
)
```

--------------------------------

### LibrePCB Library CI Pipeline (GitHub Actions)

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

A GitHub Actions workflow configured to automatically validate the LibrePCB library on push and pull request events. It utilizes the `librepcb-cli` within a Docker container for consistent testing environments.

```yaml
name: CIon: [push, pull_request]
jobs:
  check:
    runs-on: ubuntu-22.04
    container:
      image: librepcb/librepcb-cli:1.0.0-rc1
      options: --entrypoint /bin/bash
    steps:
    - uses: actions/checkout@v1
    - run: librepcb-cli open-library --all --strict --check --minify-step .

```

--------------------------------

### Check Library Dependencies with grep

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

This bash command checks for library dependencies within a library.lp file. It uses grep to search for the string "dependency" and outputs the lines where it is found. This helps identify the UUIDs of required libraries.

```bash
# Check library dependencies
grep -r "dependency" library.lp

```

--------------------------------

### Filter Parts by Specifications with Python

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

This Python script filters LED parts based on CRI and color temperature requirements from a device file. It depends on the `parse_device_attributes` function. It takes the device file path and minimum CRI, minimum CCT, and maximum CCT as input, returning a list of matching parts.

```python
def filter_parts_by_specs(device_file, min_cri=80, min_cct=4000, max_cct=5000):
    """Filter LED parts by CRI and color temperature requirements."""
    parts = parse_device_attributes(device_file)
    matching = []

    for part in parts:
        cri = int(part['attributes']['MINIMUM_CRI']['value'])
        cct = int(part['attributes']['NOMINAL_CCT']['value'].split()[0])

        if cri >= min_cri and min_cct <= cct <= max_cct:
            matching.append(part)

    return matching

# Find all 80+ CRI parts with neutral white (4000-5000K)
devices = [
    'dev/0cdaca73-8d0e-4dc7-a8d9-1e1b468d19aa/device.lp',  # JB3030 3V
    'dev/6ee5b5bb-b885-4b25-8bbf-68f0fdb98828/device.lp',  # JK3030 6V
    'dev/af366125-3e8b-4032-8e11-0404ebcb3366/device.lp'   # JK3030 3V
]

for device in devices:
    matches = filter_parts_by_specs(device, min_cri=80, min_cct=4000, max_cct=5000)
    print(f"\n{device.split('/')[-2]}:")
    for match in matches:
        print(f"  {match['part_number']}: "
              f"{match['attributes']['NOMINAL_CCT']['value']}, "
              f"CRI {match['attributes']['MINIMUM_CRI']['value']}, "
              f"{match['attributes']['FORWARD_VOLTAGE']['value']}V")

```

--------------------------------

### LibrePCB Package Category Definition

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

Defines an organizational category for grouping Cree packages within the LibrePCB hierarchy. This S-expression format specifies the category's name, description, and parent category.

```lisp
(librepcb_package_category 122a5d91-f92d-4bfb-a9a4-9e71d8e56117
 (name "Cree")
 (description "Custom packages by Cree.")
 (keywords "cree")
 (author "LibrePCB")
 (version "0.1")
 (created 2020-06-14T16:57:58Z)
 (deprecated false)
 (parent 194951ec-03dd-412a-9828-70c40bbdd22d)
)
```

--------------------------------

### Cree JB3030 3V LED Device Definition (LibrePCB Lisp)

Source: https://context7.com/librepcb-libraries/cree.lplib/llms.txt

Defines the Cree JB3030 3V LED with multiple variants, specifying attributes like power rating, forward voltage, color temperature, and CRI. This Lisp-formatted code is used by LibrePCB for component definition.

```lisp
(librepcb_device 0cdaca73-8d0e-4dc7-a8d9-1e1b468d19aa
 (name "Cree JB3030 3V")
 (description "J Series® LEDs extend Cree's industry-leading portfolio of lighting-class LEDs to a broader set of applications. The J Series 3030 Standard LEDs combine high efficacy and excellent value in a reliable package. The J Series 3030 Standard LEDs are optimized for applications where high efficacy and smooth appearance are critical, such as troffers, panel and outdoor area lights.")
 (keywords "venture,j-series")
 (author "J. R. Schmid")
 (version "0.2")
 (created 2020-05-23T18:40:48Z)
 (deprecated false)
 (generated_by "")
 (category 70421345-ae1d-4fed-aa60-e7619524b97f)
 (component 2b24b18d-bd95-4fb4-8fe6-bce1d020ead4)
 (package ad3fb64f-2c73-4668-bb4c-2b4a34958a70)
 (pad 3cbbb83b-6dfd-422b-95b5-b31600bb290d (signal 7b023430-b68f-403a-80b8-c7deb12e7a0c))
 (pad 44222ae2-bc33-41d3-b585-fcdd5331e55a (signal f1467b5c-cc7d-44b4-8076-d729f35b3a6a))
 (part "JB3030AWT-P-B65EA0000-N0000001" (manufacturer "CreeLED")
  (attribute "POWER_RATING" (type power) (unit watt) (value "0.2"))
  (attribute "FORWARD_VOLTAGE" (type voltage) (unit volt) (value "3"))
  (attribute "NOMINAL_CCT" (type string) (unit none) (value "6500 K"))
  (attribute "MINIMUM_CRI" (type string) (unit none) (value "70"))
  (attribute "COLOR" (type string) (unit none) (value "white"))
 )
 (part "JB3030AWT-P-H65EA0000-N0000001" (manufacturer "CreeLED")
  (attribute "POWER_RATING" (type power) (unit watt) (value "0.2"))
  (attribute "FORWARD_VOLTAGE" (type voltage) (unit volt) (value "3"))
  (attribute "NOMINAL_CCT" (type string) (unit none) (value "6500 K"))
  (attribute "MINIMUM_CRI" (type string) (unit none) (value "80"))
  (attribute "COLOR" (type string) (unit none) (value "white"))
 )
 (part "JB3030AWT-P-B40EA0000-N0000001" (manufacturer "CreeLED")
  (attribute "POWER_RATING" (type power) (unit watt) (value "0.2"))
  (attribute "FORWARD_VOLTAGE" (type voltage) (unit volt) (value "3"))
  (attribute "NOMINAL_CCT" (type string) (unit none) (value "4000 K"))
  (attribute "MINIMUM_CRI" (type string) (unit none) (value "70"))
  (attribute "COLOR" (type string) (unit none) (value "white"))
 )
 (part "JB3030AWT-P-H27EA0000-N0000001" (manufacturer "CreeLED")
  (attribute "POWER_RATING" (type power) (unit watt) (value "0.2"))
  (attribute "FORWARD_VOLTAGE" (type voltage) (unit volt) (value "3"))
  (attribute "NOMINAL_CCT" (type string) (unit none) (value "2700 K"))
  (attribute "MINIMUM_CRI" (type string) (unit none) (value "80"))
  (attribute "COLOR" (type string) (unit none) (value "white"))
 )
)
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.