style: apply Prettier formatting to TS/JS/JSON/MD files
Add Prettier as a dev dependency with .prettierrc.json config and .prettierignore. Hook added via mirrors-prettier in pre-commit config. All TypeScript, JSON, Markdown, and YAML files auto-formatted. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
@@ -1,344 +1,374 @@
|
||||
# JLCPCB Parts Integration - Complete Guide
|
||||
|
||||
## Overview
|
||||
|
||||
The KiCAD MCP Server integrates with JLCPCB's parts library to provide intelligent component selection, cost optimization, and automated part sourcing for PCB assembly.
|
||||
|
||||
**Current Implementation**: Uses the **JLCSearch public API** (by tscircuit) for free, unauthenticated access to JLCPCB's ~100k parts catalog.
|
||||
|
||||
## Features
|
||||
|
||||
✅ **Parametric Search** - Find components by specifications (resistance, capacitance, package, etc.)
|
||||
✅ **Price Comparison** - Compare Basic vs Extended library pricing
|
||||
✅ **Alternative Suggestions** - Find cheaper or higher-stock alternatives
|
||||
✅ **Footprint Mapping** - Automatic JLCPCB package to KiCad footprint mapping
|
||||
✅ **Stock Availability** - Real-time stock levels from JLCPCB
|
||||
✅ **No Authentication Required** - Public API, no API keys needed
|
||||
|
||||
## Quick Start
|
||||
|
||||
### 1. Search for Components
|
||||
|
||||
```python
|
||||
from commands.jlcsearch import JLCSearchClient
|
||||
|
||||
client = JLCSearchClient()
|
||||
|
||||
# Search for resistors
|
||||
resistors = client.search_resistors(
|
||||
resistance=10000, # 10kΩ
|
||||
package="0603",
|
||||
limit=20
|
||||
)
|
||||
|
||||
# Search for capacitors
|
||||
capacitors = client.search_capacitors(
|
||||
capacitance=1e-7, # 100nF
|
||||
package="0603",
|
||||
limit=20
|
||||
)
|
||||
|
||||
# General component search
|
||||
components = client.search_components(
|
||||
"components",
|
||||
package="0603",
|
||||
limit=100
|
||||
)
|
||||
```
|
||||
|
||||
### 2. Get Part Details
|
||||
|
||||
```python
|
||||
# Get specific part by LCSC number
|
||||
part = client.get_part_by_lcsc(25804) # C25804
|
||||
print(f"Part: {part['mfr']}")
|
||||
print(f"Stock: {part['stock']}")
|
||||
print(f"Price: ${part['price1']}")
|
||||
print(f"Basic Library: {part['is_basic']}")
|
||||
```
|
||||
|
||||
### 3. Database Integration
|
||||
|
||||
```python
|
||||
from commands.jlcpcb_parts import JLCPCBPartsManager
|
||||
|
||||
# Initialize database
|
||||
db = JLCPCBPartsManager() # Uses data/jlcpcb_parts.db
|
||||
|
||||
# Download and import parts (one-time setup)
|
||||
client = JLCSearchClient()
|
||||
parts = client.download_all_components()
|
||||
db.import_jlcsearch_parts(parts)
|
||||
|
||||
# Search imported database
|
||||
results = db.search_parts(
|
||||
query="resistor",
|
||||
package="0603",
|
||||
library_type="Basic",
|
||||
in_stock=True,
|
||||
limit=20
|
||||
)
|
||||
```
|
||||
|
||||
### 4. Footprint Mapping
|
||||
|
||||
```python
|
||||
# Map JLCPCB package to KiCad footprints
|
||||
footprints = db.map_package_to_footprint("0603")
|
||||
# Returns:
|
||||
# [
|
||||
# "Resistor_SMD:R_0603_1608Metric",
|
||||
# "Capacitor_SMD:C_0603_1608Metric",
|
||||
# "LED_SMD:LED_0603_1608Metric"
|
||||
# ]
|
||||
```
|
||||
|
||||
## API Reference
|
||||
|
||||
### JLCSearchClient
|
||||
|
||||
#### `search_resistors(resistance, package, limit)`
|
||||
Search for resistors by value and package.
|
||||
|
||||
**Parameters:**
|
||||
- `resistance` (int, optional): Resistance in ohms
|
||||
- `package` (str, optional): Package size ("0402", "0603", "0805", etc.)
|
||||
- `limit` (int): Maximum results (default: 100)
|
||||
|
||||
**Returns:** List of resistor dicts with fields:
|
||||
- `lcsc`: LCSC number (integer)
|
||||
- `mfr`: Manufacturer part number
|
||||
- `package`: Package size
|
||||
- `is_basic`: True if Basic library part (no assembly fee)
|
||||
- `resistance`: Resistance in ohms
|
||||
- `tolerance_fraction`: Tolerance (0.01 = 1%)
|
||||
- `power_watts`: Power rating in mW
|
||||
- `stock`: Available stock
|
||||
- `price1`: Unit price in USD
|
||||
|
||||
#### `search_capacitors(capacitance, package, limit)`
|
||||
Search for capacitors by value and package.
|
||||
|
||||
**Parameters:**
|
||||
- `capacitance` (float, optional): Capacitance in farads (e.g., 1e-7 for 100nF)
|
||||
- `package` (str, optional): Package size
|
||||
- `limit` (int): Maximum results
|
||||
|
||||
**Returns:** List of capacitor dicts
|
||||
|
||||
#### `search_components(category, limit, offset, **filters)`
|
||||
General component search.
|
||||
|
||||
**Parameters:**
|
||||
- `category` (str): "resistors", "capacitors", "components", etc.
|
||||
- `limit` (int): Maximum results
|
||||
- `offset` (int): Pagination offset
|
||||
- `**filters`: Additional filters (package="0603", lcsc=25804, etc.)
|
||||
|
||||
**Returns:** List of component dicts
|
||||
|
||||
#### `download_all_components(callback, batch_size)`
|
||||
Download entire JLCPCB parts catalog.
|
||||
|
||||
**Parameters:**
|
||||
- `callback` (callable, optional): Progress callback(parts_count, status_msg)
|
||||
- `batch_size` (int): Parts per batch (default: 1000)
|
||||
|
||||
**Returns:** List of all parts (~100k components)
|
||||
|
||||
**Note:** This may take 5-10 minutes to complete.
|
||||
|
||||
### JLCPCBPartsManager
|
||||
|
||||
#### `import_jlcsearch_parts(parts, progress_callback)`
|
||||
Import parts from JLCSearch into local SQLite database.
|
||||
|
||||
**Parameters:**
|
||||
- `parts` (list): List of part dicts from JLCSearchClient
|
||||
- `progress_callback` (callable, optional): Progress updates
|
||||
|
||||
#### `search_parts(query, category, package, library_type, manufacturer, in_stock, limit)`
|
||||
Search local database with filters.
|
||||
|
||||
**Parameters:**
|
||||
- `query` (str, optional): Free-text search
|
||||
- `category` (str, optional): Category filter
|
||||
- `package` (str, optional): Package filter
|
||||
- `library_type` (str, optional): "Basic", "Extended", or "Preferred"
|
||||
- `manufacturer` (str, optional): Manufacturer filter
|
||||
- `in_stock` (bool): Only in-stock parts (default: True)
|
||||
- `limit` (int): Maximum results
|
||||
|
||||
**Returns:** List of matching parts
|
||||
|
||||
#### `get_part_info(lcsc_number)`
|
||||
Get detailed part information.
|
||||
|
||||
**Parameters:**
|
||||
- `lcsc_number` (str): LCSC part number (e.g., "C25804")
|
||||
|
||||
**Returns:** Part dict or None
|
||||
|
||||
#### `get_database_stats()`
|
||||
Get database statistics.
|
||||
|
||||
**Returns:** Dict with:
|
||||
- `total_parts`: Total parts count
|
||||
- `basic_parts`: Basic library count
|
||||
- `extended_parts`: Extended library count
|
||||
- `in_stock`: Parts with stock > 0
|
||||
- `db_path`: Database file path
|
||||
|
||||
#### `map_package_to_footprint(package)`
|
||||
Map JLCPCB package to KiCad footprints.
|
||||
|
||||
**Parameters:**
|
||||
- `package` (str): JLCPCB package name
|
||||
|
||||
**Returns:** List of KiCad footprint library references
|
||||
|
||||
## Data Format
|
||||
|
||||
### JLCSearch Part Object
|
||||
|
||||
```json
|
||||
{
|
||||
"lcsc": 25804,
|
||||
"mfr": "0603WAF1002T5E",
|
||||
"package": "0603",
|
||||
"is_basic": true,
|
||||
"is_preferred": false,
|
||||
"resistance": 10000,
|
||||
"tolerance_fraction": 0.01,
|
||||
"power_watts": 100,
|
||||
"stock": 37165617,
|
||||
"price1": 0.000842857
|
||||
}
|
||||
```
|
||||
|
||||
### Database Schema
|
||||
|
||||
```sql
|
||||
CREATE TABLE components (
|
||||
lcsc TEXT PRIMARY KEY, -- "C25804"
|
||||
category TEXT, -- "Resistors"
|
||||
subcategory TEXT, -- "Chip Resistor"
|
||||
mfr_part TEXT, -- "0603WAF1002T5E"
|
||||
package TEXT, -- "0603"
|
||||
solder_joints INTEGER,
|
||||
manufacturer TEXT,
|
||||
library_type TEXT, -- "Basic" or "Extended"
|
||||
description TEXT, -- "10kΩ ±1% 100mW"
|
||||
datasheet TEXT,
|
||||
stock INTEGER,
|
||||
price_json TEXT, -- JSON array of price breaks
|
||||
last_updated INTEGER -- Unix timestamp
|
||||
);
|
||||
```
|
||||
|
||||
## Package to Footprint Mappings
|
||||
|
||||
| JLCPCB Package | KiCad Footprints |
|
||||
|----------------|------------------|
|
||||
| 0402 | Resistor_SMD:R_0402_1005Metric<br>Capacitor_SMD:C_0402_1005Metric<br>LED_SMD:LED_0402_1005Metric |
|
||||
| 0603 | Resistor_SMD:R_0603_1608Metric<br>Capacitor_SMD:C_0603_1608Metric<br>LED_SMD:LED_0603_1608Metric |
|
||||
| 0805 | Resistor_SMD:R_0805_2012Metric<br>Capacitor_SMD:C_0805_2012Metric |
|
||||
| 1206 | Resistor_SMD:R_1206_3216Metric<br>Capacitor_SMD:C_1206_3216Metric |
|
||||
| SOT-23 | Package_TO_SOT_SMD:SOT-23<br>Package_TO_SOT_SMD:SOT-23-3 |
|
||||
| SOT-23-5 | Package_TO_SOT_SMD:SOT-23-5 |
|
||||
| SOT-23-6 | Package_TO_SOT_SMD:SOT-23-6 |
|
||||
| SOT-223 | Package_TO_SOT_SMD:SOT-223 |
|
||||
| SOIC-8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm |
|
||||
| QFN-20 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm |
|
||||
|
||||
## Best Practices
|
||||
|
||||
### 1. Always Use Basic Library Parts First
|
||||
Basic library parts have **no assembly fee** ($0/part), while Extended parts cost **$3/part**.
|
||||
|
||||
```python
|
||||
# Filter for Basic parts only
|
||||
basic_parts = [p for p in results if p['is_basic']]
|
||||
```
|
||||
|
||||
### 2. Check Stock Availability
|
||||
Ensure sufficient stock before committing to a design.
|
||||
|
||||
```python
|
||||
# Only use parts with >1000 stock
|
||||
high_stock = [p for p in results if p['stock'] > 1000]
|
||||
```
|
||||
|
||||
### 3. Compare Prices
|
||||
Even within Basic library, prices vary significantly.
|
||||
|
||||
```python
|
||||
# Find cheapest option
|
||||
cheapest = min(results, key=lambda x: x.get('price1', 999))
|
||||
```
|
||||
|
||||
### 4. Use Standardized Packages
|
||||
Stick to common packages (0402, 0603, 0805) for better availability and pricing.
|
||||
|
||||
### 5. Cache Database Locally
|
||||
Download the full parts database once and search locally for faster results.
|
||||
|
||||
```python
|
||||
# Initial download (one-time, ~5-10 minutes)
|
||||
if not os.path.exists("data/jlcpcb_parts.db"):
|
||||
parts = client.download_all_components()
|
||||
db.import_jlcsearch_parts(parts)
|
||||
|
||||
# Subsequent searches use local database (instant)
|
||||
results = db.search_parts(...)
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### API Rate Limiting
|
||||
JLCSearch is a community service. If you hit rate limits:
|
||||
- Add delays between requests (`time.sleep(0.1)`)
|
||||
- Use the local database instead of repeated API calls
|
||||
- Download the full database once and work offline
|
||||
|
||||
### Missing Data
|
||||
JLCSearch may not have all fields that official JLCPCB API provides:
|
||||
- No datasheets (use manufacturer website)
|
||||
- Limited category information
|
||||
- No solder joint count
|
||||
|
||||
### Stock Discrepancies
|
||||
Stock levels are updated periodically but may lag real-time JLCPCB data by a few hours.
|
||||
|
||||
## Official JLCPCB API (Alternative)
|
||||
|
||||
The project also includes an implementation of the official JLCPCB API with HMAC-SHA256 authentication. However, this requires:
|
||||
1. API approval from JLCPCB (not all applications are approved)
|
||||
2. APP_ID, ACCESS_KEY, and SECRET_KEY credentials
|
||||
3. Previous order history with JLCPCB
|
||||
|
||||
To use the official API instead of JLCSearch:
|
||||
|
||||
```python
|
||||
from commands.jlcpcb import JLCPCBClient
|
||||
|
||||
# Set credentials in .env file:
|
||||
# JLCPCB_APP_ID=<your_app_id>
|
||||
# JLCPCB_API_KEY=<your_access_key>
|
||||
# JLCPCB_API_SECRET=<your_secret_key>
|
||||
|
||||
client = JLCPCBClient(app_id, access_key, secret_key)
|
||||
data = client.fetch_parts_page()
|
||||
```
|
||||
|
||||
**Note:** Most users should use JLCSearch public API instead, as it's freely available and requires no authentication.
|
||||
|
||||
## Credits
|
||||
|
||||
- **JLCSearch API**: https://jlcsearch.tscircuit.com/ (by [@tscircuit](https://github.com/tscircuit/jlcsearch))
|
||||
- **JLCParts Database**: https://github.com/yaqwsx/jlcparts (by [@yaqwsx](https://github.com/yaqwsx))
|
||||
- **JLCPCB**: https://jlcpcb.com/ (official parts library provider)
|
||||
|
||||
## License
|
||||
|
||||
This integration uses publicly available JLCPCB parts data via the JLCSearch community service. Users must comply with JLCPCB's terms of service when using this data for production PCB orders.
|
||||
# JLCPCB Parts Integration - Complete Guide
|
||||
|
||||
## Overview
|
||||
|
||||
The KiCAD MCP Server integrates with JLCPCB's parts library to provide intelligent component selection, cost optimization, and automated part sourcing for PCB assembly.
|
||||
|
||||
**Current Implementation**: Uses the **JLCSearch public API** (by tscircuit) for free, unauthenticated access to JLCPCB's ~100k parts catalog.
|
||||
|
||||
## Features
|
||||
|
||||
✅ **Parametric Search** - Find components by specifications (resistance, capacitance, package, etc.)
|
||||
✅ **Price Comparison** - Compare Basic vs Extended library pricing
|
||||
✅ **Alternative Suggestions** - Find cheaper or higher-stock alternatives
|
||||
✅ **Footprint Mapping** - Automatic JLCPCB package to KiCad footprint mapping
|
||||
✅ **Stock Availability** - Real-time stock levels from JLCPCB
|
||||
✅ **No Authentication Required** - Public API, no API keys needed
|
||||
|
||||
## Quick Start
|
||||
|
||||
### 1. Search for Components
|
||||
|
||||
```python
|
||||
from commands.jlcsearch import JLCSearchClient
|
||||
|
||||
client = JLCSearchClient()
|
||||
|
||||
# Search for resistors
|
||||
resistors = client.search_resistors(
|
||||
resistance=10000, # 10kΩ
|
||||
package="0603",
|
||||
limit=20
|
||||
)
|
||||
|
||||
# Search for capacitors
|
||||
capacitors = client.search_capacitors(
|
||||
capacitance=1e-7, # 100nF
|
||||
package="0603",
|
||||
limit=20
|
||||
)
|
||||
|
||||
# General component search
|
||||
components = client.search_components(
|
||||
"components",
|
||||
package="0603",
|
||||
limit=100
|
||||
)
|
||||
```
|
||||
|
||||
### 2. Get Part Details
|
||||
|
||||
```python
|
||||
# Get specific part by LCSC number
|
||||
part = client.get_part_by_lcsc(25804) # C25804
|
||||
print(f"Part: {part['mfr']}")
|
||||
print(f"Stock: {part['stock']}")
|
||||
print(f"Price: ${part['price1']}")
|
||||
print(f"Basic Library: {part['is_basic']}")
|
||||
```
|
||||
|
||||
### 3. Database Integration
|
||||
|
||||
```python
|
||||
from commands.jlcpcb_parts import JLCPCBPartsManager
|
||||
|
||||
# Initialize database
|
||||
db = JLCPCBPartsManager() # Uses data/jlcpcb_parts.db
|
||||
|
||||
# Download and import parts (one-time setup)
|
||||
client = JLCSearchClient()
|
||||
parts = client.download_all_components()
|
||||
db.import_jlcsearch_parts(parts)
|
||||
|
||||
# Search imported database
|
||||
results = db.search_parts(
|
||||
query="resistor",
|
||||
package="0603",
|
||||
library_type="Basic",
|
||||
in_stock=True,
|
||||
limit=20
|
||||
)
|
||||
```
|
||||
|
||||
### 4. Footprint Mapping
|
||||
|
||||
```python
|
||||
# Map JLCPCB package to KiCad footprints
|
||||
footprints = db.map_package_to_footprint("0603")
|
||||
# Returns:
|
||||
# [
|
||||
# "Resistor_SMD:R_0603_1608Metric",
|
||||
# "Capacitor_SMD:C_0603_1608Metric",
|
||||
# "LED_SMD:LED_0603_1608Metric"
|
||||
# ]
|
||||
```
|
||||
|
||||
## API Reference
|
||||
|
||||
### JLCSearchClient
|
||||
|
||||
#### `search_resistors(resistance, package, limit)`
|
||||
|
||||
Search for resistors by value and package.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `resistance` (int, optional): Resistance in ohms
|
||||
- `package` (str, optional): Package size ("0402", "0603", "0805", etc.)
|
||||
- `limit` (int): Maximum results (default: 100)
|
||||
|
||||
**Returns:** List of resistor dicts with fields:
|
||||
|
||||
- `lcsc`: LCSC number (integer)
|
||||
- `mfr`: Manufacturer part number
|
||||
- `package`: Package size
|
||||
- `is_basic`: True if Basic library part (no assembly fee)
|
||||
- `resistance`: Resistance in ohms
|
||||
- `tolerance_fraction`: Tolerance (0.01 = 1%)
|
||||
- `power_watts`: Power rating in mW
|
||||
- `stock`: Available stock
|
||||
- `price1`: Unit price in USD
|
||||
|
||||
#### `search_capacitors(capacitance, package, limit)`
|
||||
|
||||
Search for capacitors by value and package.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `capacitance` (float, optional): Capacitance in farads (e.g., 1e-7 for 100nF)
|
||||
- `package` (str, optional): Package size
|
||||
- `limit` (int): Maximum results
|
||||
|
||||
**Returns:** List of capacitor dicts
|
||||
|
||||
#### `search_components(category, limit, offset, **filters)`
|
||||
|
||||
General component search.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `category` (str): "resistors", "capacitors", "components", etc.
|
||||
- `limit` (int): Maximum results
|
||||
- `offset` (int): Pagination offset
|
||||
- `**filters`: Additional filters (package="0603", lcsc=25804, etc.)
|
||||
|
||||
**Returns:** List of component dicts
|
||||
|
||||
#### `download_all_components(callback, batch_size)`
|
||||
|
||||
Download entire JLCPCB parts catalog.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `callback` (callable, optional): Progress callback(parts_count, status_msg)
|
||||
- `batch_size` (int): Parts per batch (default: 1000)
|
||||
|
||||
**Returns:** List of all parts (~100k components)
|
||||
|
||||
**Note:** This may take 5-10 minutes to complete.
|
||||
|
||||
### JLCPCBPartsManager
|
||||
|
||||
#### `import_jlcsearch_parts(parts, progress_callback)`
|
||||
|
||||
Import parts from JLCSearch into local SQLite database.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `parts` (list): List of part dicts from JLCSearchClient
|
||||
- `progress_callback` (callable, optional): Progress updates
|
||||
|
||||
#### `search_parts(query, category, package, library_type, manufacturer, in_stock, limit)`
|
||||
|
||||
Search local database with filters.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `query` (str, optional): Free-text search
|
||||
- `category` (str, optional): Category filter
|
||||
- `package` (str, optional): Package filter
|
||||
- `library_type` (str, optional): "Basic", "Extended", or "Preferred"
|
||||
- `manufacturer` (str, optional): Manufacturer filter
|
||||
- `in_stock` (bool): Only in-stock parts (default: True)
|
||||
- `limit` (int): Maximum results
|
||||
|
||||
**Returns:** List of matching parts
|
||||
|
||||
#### `get_part_info(lcsc_number)`
|
||||
|
||||
Get detailed part information.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `lcsc_number` (str): LCSC part number (e.g., "C25804")
|
||||
|
||||
**Returns:** Part dict or None
|
||||
|
||||
#### `get_database_stats()`
|
||||
|
||||
Get database statistics.
|
||||
|
||||
**Returns:** Dict with:
|
||||
|
||||
- `total_parts`: Total parts count
|
||||
- `basic_parts`: Basic library count
|
||||
- `extended_parts`: Extended library count
|
||||
- `in_stock`: Parts with stock > 0
|
||||
- `db_path`: Database file path
|
||||
|
||||
#### `map_package_to_footprint(package)`
|
||||
|
||||
Map JLCPCB package to KiCad footprints.
|
||||
|
||||
**Parameters:**
|
||||
|
||||
- `package` (str): JLCPCB package name
|
||||
|
||||
**Returns:** List of KiCad footprint library references
|
||||
|
||||
## Data Format
|
||||
|
||||
### JLCSearch Part Object
|
||||
|
||||
```json
|
||||
{
|
||||
"lcsc": 25804,
|
||||
"mfr": "0603WAF1002T5E",
|
||||
"package": "0603",
|
||||
"is_basic": true,
|
||||
"is_preferred": false,
|
||||
"resistance": 10000,
|
||||
"tolerance_fraction": 0.01,
|
||||
"power_watts": 100,
|
||||
"stock": 37165617,
|
||||
"price1": 0.000842857
|
||||
}
|
||||
```
|
||||
|
||||
### Database Schema
|
||||
|
||||
```sql
|
||||
CREATE TABLE components (
|
||||
lcsc TEXT PRIMARY KEY, -- "C25804"
|
||||
category TEXT, -- "Resistors"
|
||||
subcategory TEXT, -- "Chip Resistor"
|
||||
mfr_part TEXT, -- "0603WAF1002T5E"
|
||||
package TEXT, -- "0603"
|
||||
solder_joints INTEGER,
|
||||
manufacturer TEXT,
|
||||
library_type TEXT, -- "Basic" or "Extended"
|
||||
description TEXT, -- "10kΩ ±1% 100mW"
|
||||
datasheet TEXT,
|
||||
stock INTEGER,
|
||||
price_json TEXT, -- JSON array of price breaks
|
||||
last_updated INTEGER -- Unix timestamp
|
||||
);
|
||||
```
|
||||
|
||||
## Package to Footprint Mappings
|
||||
|
||||
| JLCPCB Package | KiCad Footprints |
|
||||
| -------------- | ------------------------------------------------------------------------------------------------ |
|
||||
| 0402 | Resistor_SMD:R_0402_1005Metric<br>Capacitor_SMD:C_0402_1005Metric<br>LED_SMD:LED_0402_1005Metric |
|
||||
| 0603 | Resistor_SMD:R_0603_1608Metric<br>Capacitor_SMD:C_0603_1608Metric<br>LED_SMD:LED_0603_1608Metric |
|
||||
| 0805 | Resistor_SMD:R_0805_2012Metric<br>Capacitor_SMD:C_0805_2012Metric |
|
||||
| 1206 | Resistor_SMD:R_1206_3216Metric<br>Capacitor_SMD:C_1206_3216Metric |
|
||||
| SOT-23 | Package_TO_SOT_SMD:SOT-23<br>Package_TO_SOT_SMD:SOT-23-3 |
|
||||
| SOT-23-5 | Package_TO_SOT_SMD:SOT-23-5 |
|
||||
| SOT-23-6 | Package_TO_SOT_SMD:SOT-23-6 |
|
||||
| SOT-223 | Package_TO_SOT_SMD:SOT-223 |
|
||||
| SOIC-8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm |
|
||||
| QFN-20 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm |
|
||||
|
||||
## Best Practices
|
||||
|
||||
### 1. Always Use Basic Library Parts First
|
||||
|
||||
Basic library parts have **no assembly fee** ($0/part), while Extended parts cost **$3/part**.
|
||||
|
||||
```python
|
||||
# Filter for Basic parts only
|
||||
basic_parts = [p for p in results if p['is_basic']]
|
||||
```
|
||||
|
||||
### 2. Check Stock Availability
|
||||
|
||||
Ensure sufficient stock before committing to a design.
|
||||
|
||||
```python
|
||||
# Only use parts with >1000 stock
|
||||
high_stock = [p for p in results if p['stock'] > 1000]
|
||||
```
|
||||
|
||||
### 3. Compare Prices
|
||||
|
||||
Even within Basic library, prices vary significantly.
|
||||
|
||||
```python
|
||||
# Find cheapest option
|
||||
cheapest = min(results, key=lambda x: x.get('price1', 999))
|
||||
```
|
||||
|
||||
### 4. Use Standardized Packages
|
||||
|
||||
Stick to common packages (0402, 0603, 0805) for better availability and pricing.
|
||||
|
||||
### 5. Cache Database Locally
|
||||
|
||||
Download the full parts database once and search locally for faster results.
|
||||
|
||||
```python
|
||||
# Initial download (one-time, ~5-10 minutes)
|
||||
if not os.path.exists("data/jlcpcb_parts.db"):
|
||||
parts = client.download_all_components()
|
||||
db.import_jlcsearch_parts(parts)
|
||||
|
||||
# Subsequent searches use local database (instant)
|
||||
results = db.search_parts(...)
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### API Rate Limiting
|
||||
|
||||
JLCSearch is a community service. If you hit rate limits:
|
||||
|
||||
- Add delays between requests (`time.sleep(0.1)`)
|
||||
- Use the local database instead of repeated API calls
|
||||
- Download the full database once and work offline
|
||||
|
||||
### Missing Data
|
||||
|
||||
JLCSearch may not have all fields that official JLCPCB API provides:
|
||||
|
||||
- No datasheets (use manufacturer website)
|
||||
- Limited category information
|
||||
- No solder joint count
|
||||
|
||||
### Stock Discrepancies
|
||||
|
||||
Stock levels are updated periodically but may lag real-time JLCPCB data by a few hours.
|
||||
|
||||
## Official JLCPCB API (Alternative)
|
||||
|
||||
The project also includes an implementation of the official JLCPCB API with HMAC-SHA256 authentication. However, this requires:
|
||||
|
||||
1. API approval from JLCPCB (not all applications are approved)
|
||||
2. APP_ID, ACCESS_KEY, and SECRET_KEY credentials
|
||||
3. Previous order history with JLCPCB
|
||||
|
||||
To use the official API instead of JLCSearch:
|
||||
|
||||
```python
|
||||
from commands.jlcpcb import JLCPCBClient
|
||||
|
||||
# Set credentials in .env file:
|
||||
# JLCPCB_APP_ID=<your_app_id>
|
||||
# JLCPCB_API_KEY=<your_access_key>
|
||||
# JLCPCB_API_SECRET=<your_secret_key>
|
||||
|
||||
client = JLCPCBClient(app_id, access_key, secret_key)
|
||||
data = client.fetch_parts_page()
|
||||
```
|
||||
|
||||
**Note:** Most users should use JLCSearch public API instead, as it's freely available and requires no authentication.
|
||||
|
||||
## Credits
|
||||
|
||||
- **JLCSearch API**: https://jlcsearch.tscircuit.com/ (by [@tscircuit](https://github.com/tscircuit/jlcsearch))
|
||||
- **JLCParts Database**: https://github.com/yaqwsx/jlcparts (by [@yaqwsx](https://github.com/yaqwsx))
|
||||
- **JLCPCB**: https://jlcpcb.com/ (official parts library provider)
|
||||
|
||||
## License
|
||||
|
||||
This integration uses publicly available JLCPCB parts data via the JLCSearch community service. Users must comply with JLCPCB's terms of service when using this data for production PCB orders.
|
||||
|
||||
Reference in New Issue
Block a user