01
PCB Design & Layout
Complete schematic and PCB development using professional EDA workflows, including multilayer layouts, component placement, routing, grounding, power distribution, DRC and manufacturing preparation.
Electronics Engineering & Product Development
Engineering Ideas Into Real-World Electronics
Quantum Circuit Technologies designs and develops custom electronics, PCBs, embedded systems, and IoT products — from initial concept to prototype and manufacturing.
Engineering workflow
- Concept
- Schematic
- PCB
- Prototype
- Manufacturing
Industrial control boardRouted
- Layers
- Multilayer
- Interfaces
- Wireless
- Output
- Production files
PCB DesignEmbedded HardwareIoTPrototypingProduct DevelopmentManufacturingPCB DesignEmbedded HardwareIoTPrototypingProduct DevelopmentManufacturing
What we do
Engineering Services
Hardware engineering across the full development path — circuit design, PCB layout, embedded hardware and the documentation needed to manufacture it.
02
Embedded Hardware
Custom hardware based on microcontrollers, wireless modules, sensors, interfaces, memory, power management and peripheral systems.
03
IoT Product Development
Connected devices incorporating Wi-Fi, Bluetooth/BLE, cellular connectivity, sensors, cloud-connected hardware and low-power architectures.
04
Power & Battery Systems
Battery-powered electronics, charging, protection, power-path management, DC/DC converters, LDOs, power optimization and low-power design.
05
Hardware Prototyping
Engineering prototypes, component selection, PCB manufacturing preparation, assembly documentation and prototype bring-up.
06
Manufacturing Preparation
Complete production documentation including Gerbers, drill files, BOM, CPL/Pick-and-Place, assembly drawings and DFM review.
Platforms
Technologies We Work With
Platforms, tools and interfaces we build with when a project calls for them. Technology is selected to fit the requirement — not the other way round.
Microcontrollers & Wireless
- ESP32
- ESP32-C3
- ESP32-S3
- ESP32-C6
- Nordic nRF52 family
- ARM-based MCUs
PCB / EDA
- Altium Designer
- KiCad
- EasyEDA
- Proteus
Connectivity
- Wi-Fi
- Bluetooth / BLE
- Cellular
- Ethernet
- USB
- I²C
- SPI
- UART
- CAN
Hardware
- Sensors
- MEMS
- Power management
- Battery systems
- LEDs
- Displays
- Cameras
- Storage
- RF/wireless modules
Component and platform choices are made per project, based on requirements, availability and manufacturability rather than a fixed preference.
How we work
Our Process
A predictable engineering sequence. Each stage produces something reviewable, so the design is validated before it moves forward.
- 01
Understand
We understand the product requirements, constraints and target application.
- 02
Architect
We select the appropriate components, interfaces, power architecture and system topology.
- 03
Design
We develop the schematic, PCB layout and supporting engineering documentation.
- 04
Prototype
The design is prepared for manufacturing and prototype assembly.
- 05
Validate
The prototype is tested, debugged and refined.
- 06
Manufacture
We prepare the final production package and support the transition toward manufacturing.
Product design flow
From Schematic to Finished Product
Every stage of hardware development produces something tangible. This is what gets designed, and what you receive at each step.
01
Schematic Design
The circuit itself — component selection, pin planning, power rails and interfaces, drawn as a reviewable sheet with reference designators and net labels.
- Schematic PDF
- Source project
- Design notes
02
PCB Layout
Stack-up, placement and routing — controlled return paths, sensible grounding and a board outline that fits the mechanics it has to live in.
- Layout files
- Gerbers
- Drill files
- DRC report
03
BOM & CPL
The bill of materials with part numbers and packages, plus the component placement list — the two files an assembler needs before a board can be built.
- BOM (CSV)
- CPL / pick-and-place
- Sourcing notes
04
Manufacturing
The design prepared for the factory floor — stencil and paste data, assembly drawings and the checks that catch problems before they are etched into copper.
- Fabrication package
- Assembly drawings
- Stencil data
05
Finished Product
The assembled unit, tested and fitted to its enclosure — the point where a schematic becomes something you can hold, ship and sell.
- Assembled hardware
- Test results
- Production package
Portfolio
Selected Engineering Projects
Representative hardware developed by Quantum Circuit Technologies. Each entry describes the engineering scope rather than commercial outcomes.
Custom Electronics / BLE
ESP32 BLE Custom PCB Badge with RGB LEDs
A custom ESP32 board with BLE connectivity and 40 addressable RGB LEDs, running from either USB-C or an onboard LiPo cell.
- ESP32
- BLE
- RGB LEDs
- USB-C
IoT / Industrial
ESP32 PoE IoT Gateway with Multi-Sensor Integration
An ESP32 gateway powered over Ethernet, combining wired and wireless connectivity with a multi-sensor environmental package.
- ESP32
- PoE
- W5500 Ethernet
- Zigbee
IoT / Energy Monitoring
ESP32 IoT Power Monitoring System
An ESP32-based system for monitoring electrical parameters using voltage and current sensing, with data processing and cloud connectivity.
- ESP32
- Wi-Fi
- Current sensing
- Voltage sensing
Embedded Systems
ESP32-S3 Embedded Vision System
An embedded platform integrating an ESP32-S3 with camera and storage peripherals for custom embedded applications.
- ESP32-S3
- Camera interface
- Storage
- PSRAM
Wearable Electronics
BLE Wearable Electronics
Compact wearable hardware concepts using BLE connectivity and sensor-based interaction.
- Nordic nRF52
- BLE
- MEMS sensors
- Li-Po charging
Power Electronics
Battery-Powered Electronics
Custom low-power electronics incorporating Li-ion batteries, charging, protection and regulated power rails.
- Li-ion
- Charge management
- Protection
- DC/DC
Engineering capabilities
From Circuit to Product
Hardware development is a chain of dependent decisions. A component chosen at architecture stage constrains the layout; a layout choice constrains what can be assembled.
Quantum Circuit Technologies can support a project across the full chain or join at the stage where support is needed — reviewing an existing schematic, taking a proven prototype toward manufacturing, or starting from a blank page.
- 01
Concept
Requirements, constraints, target application and feasibility.
- 02
System Architecture
Block diagram, component selection, interfaces and power topology.
- 03
Schematic
Circuit design, pin planning, review and design rule definition.
- 04
PCB Layout
Stack-up, placement, routing, grounding and DRC verification.
- 05
Prototype
Fabrication and assembly documentation, build and bring-up.
- 06
Testing
Measurement, debugging, refinement and design iteration.
- 07
Manufacturing
Production package, DFM review and transition to manufacturing.
Working with us
Why Work With QCT?
Practical reasons rooted in how the engineering is done — not marketing claims.
Engineering First
Design decisions are driven by electrical performance, reliability, manufacturability and cost.
Production Mindset
PCB designs are prepared with manufacturing and assembly requirements in mind.
Complete Hardware Workflow
From schematic and PCB layout to BOM, Gerbers, CPL and prototype support.
Flexible Technology
We work across microcontrollers, sensors, wireless systems, power electronics and embedded hardware.
Direct Communication
Clear technical communication throughout the development process.
No inflated claims
We publish capability, not statistics. Project references, measured results and client details are shared directly during technical discussion where they are relevant.
Client feedback
What Clients Say
Reviews left by clients on completed engagements, quoted as written.
Working with Shuja Ch was an absolute pleasure! The entire process was incredibly quick and efficient. He understood my requirements perfectly, delivered exactly what I needed, and did it all in record time without compromising on quality. Excellent communication, professional approach, and flawless execution—highly recommended!
Working with Shuja Ch was a genuinely smooth and productive experience. Communication was clear, fast, and professional throughout the entire project. Shuja understood my technical requirements immediately and delivered high-quality results ahead of schedule.
I was totally satisfied with the work. Shuja delivered the project before the deadline and it was professionally done. Highly recommended him for anyone who wants to have Schematic and PCB design. Surely will contact Shuja in future
Shuja provided a clear and well-structured schematic design exactly as requested. He understood the requirements quickly, delivered on time, and kept communication smooth and professional. The schematics are neat, logical, and ready for the next stages of the project. Looking forward to working with him again on the PCB layout and future orders.
Shuja is very professional. His communation is very clear and strate forward. Response time is quick. The final delivery is complete width all the files you need. When i have a other project i will work again width him
Where it is used
Applications
Domains our hardware work typically serves. The engineering approach stays the same; the constraints change.
- IoT
- Smart Devices
- Wearable Electronics
- Industrial Electronics
- Automation
- Energy Monitoring
- Consumer Electronics
- Embedded Systems
- Sensor Systems
- Battery-Powered Devices
- Research & Development
- Robotics
Technical consultation
Have an Electronics Project in Mind?
Whether you have a complete specification or only an early-stage idea, Quantum Circuit Technologies can help turn the concept into a practical electronics solution.