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ESP32-Based IoT PCBA — From Ready Stock to Rapid Mass Production.
Customer Challenges
Developing IoT products requires deep expertise across hardware, firmware, and system integration.
Many companies face inefficient development cycles due to disconnects between design and real-world application requirements.
Challenges in RF performance, power optimization, and connectivity stability further increase development complexity.
Without proper validation, products risk performance issues, certification failures, and repeated redesigns.
The real challenge lies in turning concepts into production-ready, high-performance designs.
Solutions
Our Solutions
We provide end-to-end engineering services to accelerate product development and ensure production readiness.
•  Our capabilities include hardware design, PCB layout, RF optimization, firmware development, and system integration.
•  With strong expertise in ESP32 platforms, we optimize wireless performance, energy efficiency, and system stability.
•  We apply Design for Manufacturing (DFM) principles from the beginning, ensuring seamless transition to mass production.
•  Our approach reduces risk while improving development speed and product reliability.
Process
Service Process
1
Requirement Definition
Define product goals, specifications, and application scenarios.
2
System Architecture Design
Develop optimized hardware and software architecture.
3
Hardware & Firmware Development
Complete circuit design, PCB layout, and embedded programming.
4
Prototype Development
Rapid prototyping for early validation.
5
Engineering Validation (EVT/DVT)
Test functionality, RF performance, and system stability.
6
Design Optimization
Improve manufacturability, cost, and performance.
7
Production Transfer
Prepare full documentation for manufacturing handover.
Advantages
Why Choose Us
MTI
MTI Design & engineering

At MTI, we are your dedicated EMS (Electronic Manufacturing Services) provider, committed to working closely with our customers throughout the entire product lifecycle. From PCB design and layout to new product introduction (NPI), material procurement, assembly, final packaging, logistics, and after-sales support, we offer a comprehensive range of services to meet your specific needs.

we understand the importance of time-to-market and cost optimization. Our streamlined processes and state-of-the-art facilities enable us to provide efficient and cost-effective solutions without compromising on quality.
We take pride in our customer-centric approach, offering personalized support and responsive communication at every step of the project. Our team is dedicated to ensuring your satisfaction and building long-term partnerships based on trust and mutual success.
Thank you for considering MTI as your EMS partner. Contact us today to discuss your project requirements and experience our commitment to excellence firsthand.
Schematic Design
PCB Layout
Firmware Development
Services
Schematic Design
Entrepreneurs and companies often struggle to launch their hardware products in time because they lack the expertise or guidance to design them from scratch.
That’s why you need MTI, a leading hardware design company that can help you achieve the best results for your hardware product development.
We have a team of experienced engineers who can handle all aspects of electronics design, from proof of concept to schematics design, bill of materials, assembly, and manufacturing.
One of our Hardware Design Services is small-batch manufacturing, which allows you to test your idea quickly and verify the functionality of the hardware design and PCB board.
A schematic diagram is a logical and visual representation of an electrical circuit. It is the first step of electronic product design. In the past, designers used to draw the circuit diagram on paper. Now, they use PCB design tools (M-CAD and E-CAD) that make the design process easier. However, designers still need to follow standard schematic guidelines to ensure a well-structured and error-free design.
PCB Layout
Your printed circuit board (PCB) starts here. We have rich experience engineer to create a layout using a software platform like Altium Designer. This layout shows you the exact appearance and placement of the components on your board.


We call our process of working with our clients from the start to design and produce the best custom PCB possible concurrent engineering. During the layout stage, our skilled engineers suggest material stackups that meet impedance requirements and design for manufacturability guidelines. Our early involvement ensures your PCB is designed and manufactured right-without multiple revisions.


Let our PCB team handle the seamless integration of your project as it progresses from layout to fabrication and assembly-all in our advanced facility under one roof. Plus, when you use one vendor for the whole process, your PCB can often reach the market faster.
Firmware Development
At MTI Technologies we offer quality custom electronics design and manufacturing services.
• Professional custom firmware designers guide you through our templated SOW creation process, help you understand the trade-offs between different features, and help you prioritize the need-to-have and nice-to-have features.
• Engineering project managers provide accurate time-tracking data so that you can stay on top of the progress and plan for the future.
• Senior engineers are assigned to your project to ensure the correct project planning decisions are being taken.
• Staffed with engineers with variety of skill sets (including embedded systems, real-time operating systems, hardware interfacing, extensive knowledge in various microcontroller architectures, debugging, testing, and more) that can be pulled into your project at any time as needed.


Looking for a reliable and experienced partner to help you code your product to your exact needs? You’ve come to the right place!
Mechanical Product Development Services
MTI ID and MD Design Capabilities
• Rugged design for stringent environmental requirements (e.g. IP65-IP67)
• Human factors / user interface design
• SWaP (Size, Weight and Power) analysis and design
• Integration of electrical and mechanical parts and subassemblies
• Assembly jig / part fixture design and development
• FEA (Finite Element Analysis)
• Risk Analysis / DFMEA / PFMEA
• Root cause identification and problem solving with Six Sigma / Shanin methods
• Design For Manufacturability (DFM)
• Design For Assembly (DFA)
• 3D printing for prototyping and development
• Manufacturing quality system considerations
• Manufacturing supply chain vendor selection support
• Manufacturing process development
• SOLIDWORKS
• Autodesk Inventor
• Your deliverables are always ahead of schedule and of the highest quality.
MTI case
Case Study


Certificates
ISO9001:2015
Quality Management System Certification
UL-Product-iQ®
UL Certification for Printed Wiring Boards (UL796)
ISO13485:2016
Medical Devices Quality Management System
GB/T19001-2016 / ISO9001:2015
Quality Management System Certification

FAQ

1
What engineering files do you need to start a project review?
We accept Gerber files, BOM list, centroid files, assembly drawings and test specifications. Even if your design is incomplete, our engineers can evaluate feasibility and give suggestions.
2
Can you support DFM (Design for Manufacturability) review for my PCB/PCBA design?
Yes. Our DFM check reviews pad layout, component placement, solder mask and manufacturability to avoid risks before production.
3
Do you offer hardware design modification and schematic optimization?
We provide schematic consultation, PCB layout adjustment and design optimization for IoT projects including ESP32-based PCBA.
4
What compliance certifications can your engineering team support?
Our team helps designs meet RoHS, CE and other common electronics compliance requirements, and generates related documentation.
5
Can you perform functional testing design for custom PCBA boards?
Yes. We design custom test jigs and functional test procedures according to your product requirements to verify PCBA performance.
Contact Us
Get in touch or visit us
Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs!
Build your next product with us!
We work with companies of all sizes to build world class products.
Let us design your solution
MTI is one of the world’s top PCB board turnkey PCB assembly manufacturers, and  the world leading EMS PCB manufacturer specializing in Schematic design, PCB layout, firmware development, printed circuit board, PCB assembly, PCBA prototype and Box Build.
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Contact Us
Contact person: Vincent
Tel: +86 186 1703 7035
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