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Design & media
JLC EDA Drawing
Try itProduce PCB-ready JLC EDA / EasyEDA schematics using real library parts, deliberate architecture, and a documented quality gate.
What it does
Drives a running EasyEDA client through a bridge layer and the official EDA API to inspect projects, place real library parts, wire nets, manage pages, and validate objects. Applies a three-layer model (bridge, EDA API, design) with conservative defaults when requirements are clear and one targeted question only when a choice changes the circuit materially. Reference files cover bridge setup, schematic standards, parts strategy, reusable circuit blocks, JavaScript code patterns, and PCB workflow, with a final quality gate verifying page, placements, nets, power labels, decoupling, and connectors.
When to use it
- Design a USB-C powered MCU board from a short spec
- Add a regulator, sensor, or communication block to an existing EasyEDA project
- Review a schematic for missing power labels or unverified nets
- Route and validate a PCB layout against the project schematic
The skill document
JLC EDA Drawing
Act as a circuit-design copilot, not just an API caller. Produce clean, PCB-ready schematics in JLC EDA / EasyEDA using real library parts, deliberate architecture, readable sheet organization, and validation.
Core Model
Use three layers:
- Bridge layer: connect Codex to the running EasyEDA client.
- EDA API layer: inspect projects, place parts, draw wires, manage pages, search libraries, and validate objects.
- Design layer: choose topology, parts, values, nets, page layout, and verification checks.
Prefer MCP tools when available. Use the official API bridge package only as fallback or for reference.
Design Intake
Move decisively when the request is clear. Ask one concise question only when a decision changes the circuit materially:
- Input/output voltage or current is unknown for power designs.
- MCU/module variant is ambiguous and affects pins or footprint.
- Connector, package, or mounting style matters mechanically.
- Safety, mains voltage, battery charging, RF, high current, or precision analog is involved.
Otherwise choose conservative defaults and state assumptions at the end.
Reference Files
Load only what the task needs:
references/bridge-api.md: Run API Gateway setup, endpoints, execution rules, official API package layout.references/design-standards.md: schematic quality standard, intake rules, net naming, final quality gate.references/parts-strategy.md: part search patterns and selection rules.references/circuit-blocks.md: reusable USB-C, regulator, MCU, UART, I2C, SPI, LED block rules.references/eda-code-patterns.md: JavaScript snippets for project/page inspection, part placement, pin reading, net stubs, validation.references/pcb-workflow.md: PCB context, units, placement/routing heuristics, DRC workflow.references/examples.md: concrete user requests and which reference files to load.references/easyeda-api-reference/: generated official EasyEDA API class, enum, interface, and type references.references/easyeda-official-guides/: official EasyEDA extension/API guides fromeasyeda-api.zip.references/easyeda-user-guide/: official user-facing API guide files fromeasyeda-api.zip.references/easyeda-official-meta/: original official skill metadata and package manifests.scripts/bridge-server.mjs: bundled official Run API Gateway bridge server script.
Default Flow
- Use
references/bridge-api.mdif bridge state or API execution is uncertain. - Use
references/design-standards.mdbefore substantial schematic work. - Use
references/parts-strategy.mdwhen choosing real library parts. - Use
references/circuit-blocks.mdfor common circuit topologies. - Use
references/eda-code-patterns.mdwhile writingexecute_in_edacode. - Use
references/pcb-workflow.mdfor PCB/layout tasks. - Use
references/examples.mdwhen trigger behavior or task shape is unclear.
Official API References
The official EasyEDA API bundle is split by purpose instead of stored as one raw nested package.
Use it when:
- A method signature is uncertain.
- An enum/interface/type is needed.
- A PCB or schematic primitive operation is not covered by local code patterns.
- The user asks about EasyEDA extension development.
- The user explicitly wants official API behavior.
Lookup order:
references/easyeda-api-reference/_quick-reference.mdreferences/easyeda-api-reference/_index.md- Specific files under
references/easyeda-api-reference/classes/ - Specific enum/interface/type files under
references/easyeda-api-reference/enums/,interfaces/, ortypes/ - Extension and usage guides under
references/easyeda-official-guides/andreferences/easyeda-user-guide/
Do not load the whole official reference set into context. Search it with rg and open only the relevant files.
Quality Gate
Before final response:
- Correct page/document is active.
- Components were actually placed, not only text.
- Critical nets exist by sampling recent wires with
getState_Net(). - Power rails and grounds are labelled.
- IC power pins have nearby decoupling or documented assumptions.
- Connectors expose labelled nets.
- The schematic is zoomed to all primitives.
Final response should include:
- Page name.
- Main blocks created.
- Real parts used or notable substitutions.
- Verification performed.
- Any assumptions or risks that matter electrically.
Questions people ask
- Does it run inside the EasyEDA desktop client?
- Yes. It drives a running EasyEDA client through a bridge layer and the official EDA API, preferring MCP tools when available and falling back to the official API bridge package.
- What does it produce?
- PCB-ready schematics with real library parts, deliberate architecture, named nets, power-rail labels, and a documented quality gate that checks page state, placements, sampled nets, decoupling near IC power pins, and labelled connectors.
- When does it ask a clarifying question?
- Only when input/output specs, MCU variant, mechanical mounting, mains voltage, battery charging, RF, high current, or precision analog constraints would change the circuit. Otherwise it picks conservative defaults and states assumptions in the final response.
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