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Rohit Sivakumar

Electrical Engineer · Kent, Ohio, USA

Embedded products, engineered from concept to validated prototype.

I take embedded products from concept to validated prototype — schematic capture, multi-layer PCB layout, embedded firmware, and hardware bring-up. Currently building battery-powered electronic products at Alphamicron / Immobileyes.

View projectsResume

4

Products engineered

concept → validated prototype

3

PCB revisions shipped

on a single product line

130 dB

Peak acoustic output

piezo system I optimized

25+

Core technologies

MCUs, EDA, protocols, test gear

Featured Project

Adjustable ND Filter Controller

Engineered a handheld electronic controller capable of precisely adjusting the opacity of a liquid crystal neutral density (ND) filter using a programmable AC drive signal. The project involved three PCB design iterations, custom embedded firmware development, analog power electronics, and hardware optimization to improve performance, reliability, manufacturability, and overall user experience.

PIC16F15385Embedded C3 PCB revisionsLiquid crystal optics
Read the full case study

02

BLE Personal Safety Device

BLE · Low-Power Embedded

Designed and developed a compact Bluetooth-enabled personal safety device integrating wireless communication, high-intensity LED signaling, audible alarms, haptic feedback, battery management, and smartphone connectivity for rapid emergency notification.

nRF52840Zephyr RTOSUSB-CBattery management

Confidential prototype

03

Diversionary Alert Device

Acoustics · Embedded Control

Developed a reusable non-pyrotechnic diversionary device capable of generating synchronized high-intensity visual and acoustic stimuli using high-power LEDs and a piezoelectric sound system. The project focused heavily on acoustic chamber optimization, embedded control, and manufacturable mechanical design.

ESP32DRV8662~130 dBAcoustic design

Confidential prototype

04

Tactical Lighting System

High-Power LEDs · Battery Systems

Designed the electronic architecture for a programmable tactical lighting system featuring configurable white illumination, emergency red and green LED signaling, battery management, and embedded control for portable operation.

ESP32-S318650 packMOSFET driversThermal design

Confidential prototype

How I Work

Concept to production, owned end-to-end.

Every product I've shipped followed the same disciplined path — and I've worked hands-on at every stage of it.

  1. 01

    Requirements

    Define what the product must do, its constraints, and its environment.

  2. 02

    Architecture

    Partition the system — power, control, sensing, communication, UI.

  3. 03

    Schematic

    Capture the design with components selected for performance and availability.

  4. 04

    PCB Layout

    Multi-layer layout and routing with DFM in mind from rev A.

  5. 05

    Prototype

    Fabricate, assemble, and rework boards on the bench.

  6. 06

    Firmware

    Embedded C on bare metal or RTOS — drivers, control, UI.

  7. 07

    Bring-Up

    First power-on, rail checks, clocks, programming interfaces.

  8. 08

    Testing

    Oscilloscope-based validation of signals, power, and behavior.

  9. 09

    Validation

    Iterate hardware and firmware until the design is reliable.

  10. 10

    Production

    DFM revisions, vendor coordination, and manufacturing support.

Explore the full engineering process
PIC16F15385 · Nordic nRF52840 · ESP32DipTrace · Fusion 360 Electronics · LTspiceZephyr RTOS · nRF Connect SDK · ESP-IDFC · C++ · PythonBluetooth Low Energy · USB-C · SWD / JTAGOscilloscope · Bench power supply · Function generatorFusion 360 · Bambu Lab FDM · Formlabs SLAJLCPCB PCB/PCBA · DigiKey · MouserCadence Genus · Cadence Innovus · Synopsys Design CompilerPIC16F15385 · Nordic nRF52840 · ESP32DipTrace · Fusion 360 Electronics · LTspiceZephyr RTOS · nRF Connect SDK · ESP-IDFC · C++ · PythonBluetooth Low Energy · USB-C · SWD / JTAGOscilloscope · Bench power supply · Function generatorFusion 360 · Bambu Lab FDM · Formlabs SLAJLCPCB PCB/PCBA · DigiKey · MouserCadence Genus · Cadence Innovus · Synopsys Design Compiler

Get in Touch

Looking for an engineer who can own hardware and firmware?

I'm open to conversations about embedded hardware, product development, and semiconductor design roles.

Contact merohit.grad@gmail.com