SERVICE / 01CONCEPT → BOARD
Custom electronics engineering
Custom PCB
Design.
Turn your idea, prototype, wiring diagram, or rough concept into a real circuit board. WrenchCircuit designs automotive, ESP32, Raspberry Pi, sensor, control, power, and general electronics projects.
What we can design
Microcontrollers.
Single-board computers.
The hardware between.
WrenchCircuit can work with both microcontrollers and single-board computers, from one-off adapters to complete control electronics.
Arduino-compatible boards
STM32 boards
RP2040 boards
Raspberry Pi interface boards
Raspberry Pi HATs
Raspberry Pi Pico boards
Compute Module carrier boards
Automotive sensor interface boards
CAN bus boards
Relay controllers
MOSFET output controllers
Power distribution boards
DC power conversion boards
Temperature and pressure sensor modules
Display and dashboard interfaces
Data logging hardware
Custom adapters
Breakout boards
Prototype control electronics
General embedded-electronics projects
Service packages
Start with the stage
you are actually in.
Every project is quoted before work begins. Starting prices establish the service level; the final price depends on board size, complexity, layer count, component count, current requirements, and other design requirements.
LAYOUT01
PCB Layout
Starting at $79
Best when you already have a completed schematic.
- PCB layout
- Component placement
- Copper routing
- Ground planes
- Power routing
- Design rule checks
- Board outline
- 3D PCB preview
- Gerber files
- Drill files
DESIGN02
Custom PCB Design
Starting at $149
Best when you know what the board should do and need the schematic and PCB created.
- Project review
- Schematic design
- Component selection assistance
- PCB layout
- Connector and pinout planning
- Power and ground design
- Design rule checks
- 3D PCB preview
- Gerber and drill files
- Bill of materials
- Manufacturing-ready design package
PROTOTYPE03
Prototype to Board
Starting at $249
Best when you want help going from an idea to a physical prototype PCB.
- Everything in Custom PCB Design
- Manufacturing preparation
- JLCPCB order preparation
- Manufacturing-file verification
- Prototype-production coordination
- Design revision tracking
- Basic manufacturing support
$100
Prototype manufacturing support
For qualifying small projects, WrenchCircuit may include or front up to $100 of prototype PCB manufacturing cost as part of the quoted project price.
Manufacturing coverage must be approved in the project quote before work begins. Assembly, expensive components, specialty materials, expedited shipping, import fees, large boards, and additional revisions may be quoted separately.Raspberry Pi & Compute Module Design
Bridge the Pi
to the real world.
Custom hardware can integrate Raspberry Pi systems with sensors, automotive electronics, displays, CAN networks, and external equipment.
Discuss a Raspberry Pi project01Raspberry Pi HATs
02Custom GPIO interface boards
03CAN interface boards
04Sensor boards
05Power-supply boards
06Automotive power-conditioning boards
07I/O expansion boards
08Relay/MOSFET boards
09Touchscreen and dashboard interfaces
10Raspberry Pi Pico boards
11Compute Module carrier boards
12Data acquisition hardware
13Gateway/controller hardware
What you receive
A documented,
manufacturing-ready handoff.
Deliverables depend on the selected service. Manufacturing files can be used with JLCPCB or another compatible PCB manufacturer.
01Schematic files
02PCB design files
03Gerber files
04NC drill files
05Board outline
06Bill of materials
07Pick-and-place files when applicable
083D board images
09Connector pinout documentation
10Manufacturing notes
11Revision information
Project process
Five checkpoints.
No mystery handoff.
Scope, decisions, review, and release stay visible from the first message through the manufacturing package.
Tell us about your project
Complete the project form. You do not need a finished schematic—an idea, wiring diagram, prototype, or requirements are enough to begin.
Project review
WrenchCircuit checks technical fit, risk, missing information, and scope, then provides a quote based on complexity.
Design
The schematic and PCB are created. Major design decisions and assumptions are documented before release.
Customer review
Review layout images, 3D board renders, connector locations, dimensions, and major component placement before manufacturing release.
Manufacturing package
Final fabrication files are generated and checked. Prototype to Board projects can also be prepared for JLCPCB manufacturing.
Revisions
Errors corrected.
Scope changes quoted.
Minor corrections caused by an error in the delivered design are corrected without an additional design charge. Customer-requested feature, connector, circuit, function, or major redesign changes after approval may require another quote. Every project uses a clear revision number.
Ownership
Your files.
Clear boundaries.
Unless the project agreement says otherwise, customers receive the completed manufacturing files included in their service. Reusable WrenchCircuit libraries, generic circuit blocks, templates, internal methods, and pre-existing intellectual property remain WrenchCircuit property. Exclusive ownership or commercial licensing can be quoted separately.
Prototype first.
Validate before reliance.
Custom electronics require testing and validation before production use. WrenchCircuit does not guarantee prototypes for safety-critical, medical, aviation, braking, steering, airbag/SRS, restraint, or life-support systems, and may decline unsafe, regulated, or unsuitable applications.
PCB project intake
Put the idea
on the bench.
Share what you know. Missing technical details are expected; the review determines fit, questions, scope, and the right service package.
Review request onlyNo payment is collected here.