Turnkey embedded engineering for automotive, industrial, commercial and medical products: board design and PCB layout, C/C++ firmware, design reviews, and verification and validation.
Analog and digital design, schematic capture, and full life-cycle PCB layout through manufacturing release.
C/C++ on STM32, ESP32, TI DSP and other MCUs, RTOS and embedded Linux applications, CAN and cellular connectivity.
An independent look at an existing schematic, layout or codebase, with prioritized findings your team can act on.
DVP&R planning, HIL and SIL testing, DFMEA, and support through UL, ETL and EMC certification.
Overflow help for consultancies, full product builds for startups, targeted fixes for product teams.
Bring me in for a whole product, one board, or a focused review. Rates and fixed-price quotes on request.
Complete board-level design from requirements to a manufacturable, tested board.
Reliable firmware written to be maintained by your team after I'm done.
A fresh, experienced set of eyes before you commit to tooling or a production build.
Proof that the product does what the requirements say, documented for customers and certifiers.
Structure for programs that need it.
Define product requirements and system architecture.
Develop electronics, embedded firmware and system interfaces.
Test individual functions and integrated subsystems.
Validate complete product behavior against requirements.
Support production release and manufacturing readiness.
Troubleshoot field issues and support product updates.
Bring in an outside review of hardware or firmware already in development or production, without starting at step 1.
Products taken from requirements through validation and production. Client and employer names are withheld, and each illustration shows the system's architecture.
A Verilog design on a Xilinx Artix-7 that reads rotor angle from an AS5600 sensor over I2C and generates three-phase U/V/W drive signals for a brushless motor through a driver board. It applies FPGA design to the motor-control work I've done on DSPs, built up one feature at a time.
System architecture, cleaning-performance controls, and integration with a partner's navigation platform.
Architecture for bottle handling, washing and dispensing; STM32 / FreeRTOS boards on CAN to a Linux host.
Connected inventory system: control hardware, firmware, and Wi-Fi and cellular connectivity.
Multi-axis stepper control with Grbl firmware and a link to PC control software.
C# Windows applications for end-of-line testing, product validation and engineering teams.
Hardware and firmware development.
Hardware design for a portable medical lighting product.
Owner and engineering consultant, Quantum Circuits, LLC
I design embedded products end to end, from system architecture and schematics through PCB layout, firmware, and validation into production release. My work spans automotive, industrial, commercial, medical, military and environmental-sensing products.
Before founding Quantum Circuits, I developed EV battery management technology as a senior hardware engineer, was a partner and director of engineering at a product development firm serving startup and established clients, and led large automotive programs for premium OEM lighting and body-control modules, including global engineering and manufacturing teams.
Clients get someone who can own the whole board: the hardware, the code that runs on it, and the testing that proves it works.
When an FPGA earns its place in a BLDC drive, and when a processor is the better call. Written for engineers new to FPGAs.
Read the white paper ↗A few lines about the product and what you need is plenty. I'll reply within one business day.
rguastella@q-circuits.com