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Twenty-plus product lines across electronic percussion, biomedical sensing, and technical education hardware — from sensor front-end to shipped firmware, taken into pilot production through Shanghai supply chains.
150+ Review (4.9 of 5)
Review From Valuable clients
I turn complex ideas into practical, working products through thoughtful design and engineering.
Real-time firmware in C and C++, on bare metal and FreeRTOS, written for parts chosen around the measurement rather than the datasheet headline.
Hardware & PCB Design delivers reliable, high-performance circuits engineered for efficient, scalable, and robust electronic systems.
Front-end, converter, firmware and host tool developed as one product — from the first breadboard through to a pilot batch that can be shipped.
Instrumentation and control for benches and small production lines: sensing, acquisition, and the host software an operator actually runs it from.
Design documents, bills of material and test procedures produced to a standard that survives handoff to a contract manufacturer.
I am an embedded systems developer, inventor, and entrepreneur. I design sensing hardware and write the firmware that brings it to life, working across electronics, embedded software, signal processing, and product development.
A flagship electronic cajon built around an STM32H743 at 480 MHz with a 4.3-inch display — bit-identical in sound to its sibling model, but with the interface a professional player actually needs.
Two product tiers ship from one sound engine and one firmware core, halving the maintenance surface across the line.
An FPGA-based drum trigger system with an annular piezo array — parallel velocity processing in hardware, so timing doesn't degrade under a fast roll.
Delivered as a complete design package — three-board mechanical set, 12-module FPGA design, and a bill of materials sourced at pilot volume.
A digital logic trainer kit with a real-time browser visualization layer — students see the truth table fill in as they wire the circuit.
Sourced and costed for a 10-unit pilot batch, shipping with a 60+ line bill of materials and an 8-session curriculum.
4.9
Trusted Experience Shared by clients
Working with Shah Jaman was a game changer for our project. He quickly understood our vision, helped us solve critical technical challenges, and turned complex requirements into a reliable, production-ready solution. His attention to detail, clear communication, and commitment to delivery made the entire process smooth and successful.
Find clear answers about my process, services, projects, and what it’s like to work together.
Sensing instruments, mostly — electronic percussion, bioimpedance measurement, and teaching hardware. Different products, one problem: get a weak analog signal off a sensor, condition it without lying about it, and turn it into something usable in real time.
Yes. I design the hardware and develop the firmware together, ensuring the electronics, embedded software, sensing, and communication work as one reliable system.
STM32 and AVR on the microcontroller side, Lattice iCE40 in Verilog where a serial loop cannot hold the timing, C and C++ on bare metal and FreeRTOS, and WebSerial control applications that run from a browser tab with no installer and no driver hunt.
Yes, and most projects arrive part-built. The first step is measuring what the current design actually does rather than what it was meant to do, then deciding together what is worth keeping and what is cheaper to redesign than to keep debugging.
Sensor first. Before any schematic, we establish what the sensor outputs, where the noise floor sits, and what the measurement has to resolve — every decision after that is downstream of those three answers.
What the sensor is, what you need to measure or produce, and where the project currently sits. Those three answers decide most of what follows.
Within one business day, usually with questions about the sensor — what it is, what it outputs, and what you have already measured.
A reply within one business day, then a scope in writing: what gets built, in what order, and what it depends on. Development runs against real hardware, with the host tooling arriving alongside the firmware rather than after it.
Through sourcing and a pilot run of around ten units, with a documentation package built to survive handoff to a contract manufacturer. Volume production happens at the manufacturer.
The lab and a 13-person engineering team are at Baoshan District, Shanghai, with sourcing and operations reaching into Dhaka, Bangladesh.
Certified medical devices requiring IEC 60601 or ISO 13485 submission — these are research instruments, not regulated diagnostic products. Also pure app or web development with no hardware attached.
Room 1103A, Building B, 1588,Qilianshan Road, Baoshan District,Shanghai, China
Monday – Friday: 8:00 AM – 8:00 PM
Saturday – Sunday: 12:00 PM – 8:00 PM