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VANMEN
MICRO SYSTEMS
Project

CUSTOM EMBEDDED SYSTEMS.
FROM CIRCUIT TO PRODUCTION.

Vanmen Micro Systems designs and builds custom embedded electronics and connected products. We engineer custom embedded controllers, production-ready PCB designs, deterministic firmware, and connected IoT products — from initial concept through manufacturing.

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Hardware Architecture Overview
MCU ARCHITECTURES MULTI-PLATFORM
ARM / RISC-V / Wireless SoCs

STM32, NXP, Nordic nRF, TI, ESP32, RP2040 & Microchip PIC. Vendor-agnostic silicon selection.

FreeRTOS / Bare-Metal Deterministic
SIGNAL INTEGRITY CALIBRATED
Bus Isolation 2.5 kV Galvanic
FIELD BUS INTERFACES MULTI-DROP
RS-485 / Modbus RTU 115.2 kbps
CAN 2.0B / J1939 500 kbps
Telemetry MQTT over TLS
Ultra-Low Power
Sleep State Profiling
HW + FW Co-Design
Integrated Workflow
Multi-Layer PCB
Controlled Impedance
Noise Immunity
Galvanic Isolation

Engineering Capabilities

We turn complex requirements into reliable, production-ready hardware and software solutions tailored to your specific application needs.

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Embedded Systems Development

Custom 32-bit hardware platforms, sensor front-ends, and low-power computing systems engineered for dedicated applications.

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Firmware Development

Deterministic, bare-metal and RTOS-based C/C++ firmware with modular peripheral drivers, bootloaders, and fail-safe watchdogs.

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PCB Design

High-density, multi-layer schematic design, component lifecycle selection, power integrity, and DFM-verified layout.

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IoT Development

Connected edge devices communicating via WiFi, BLE, LoRa, or Cellular with secure MQTT over TLS, over-the-air updates, and telemetry.

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🖥️

Software Development

Custom cloud dashboards, mobile companion apps, desktop diagnostic utilities, and scalable cloud IoT backends.

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Industrial Automation

Custom PLC alternatives, 12V/24V isolated I/O controllers, motor drivers, and industrial Modbus/CAN communication nodes.

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Product Development

End-to-end commercial realization from concept verification, rapid prototyping, and bench validation to manufacturing files.

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What We Build

Specialized hardware systems designed for real-world deployment.

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Embedded Controllers

Custom control boards with deterministic real-time processing and dedicated I/O interfaces.

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IoT Devices

Wireless, battery-powered or energy-harvesting smart devices with cloud connectivity.

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Industrial Automation

Ruggedized nodes, gateways, and PLCs with isolated communication and robust power supplies.

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Sensor Systems

Precision data acquisition systems for environmental, mechanical, and electrical telemetry.

Featured Product In Stock · Fast Dispatch ISO/IEC 14443 Type A

Vanmen AeroTag 13.56

Starting at (MOQ 10): ₹3,499

A precision-tuned 13.56 MHz planar PCB antenna tag powered by the NXP NT3H2111 NFC IC. Features dual-channel QR code redundancy, 7 pF high-Q matching network, passive RF energy harvesting (2.9V DC), and universal tap compatibility on iOS and Android without any app.

Resonance
13.56 MHz ±0.15
Silicon IC
NXP NT3H2111
User EEPROM
888 Bytes NDEF
Energy Harvest
2.9V DC VOUT
Verified Applications:
Access Control Asset Tracking Smart Business Cards Device Pairing (I2C)
View Product Request Custom Version
NXP NT3H2111 7pF VCC GND SDA SCL FD VANMEN AEROTAG 13.56 HF RFID / NFC TAG DUAL QR REDUNDANCY
Verified Hardware · VNA S11 < -22 dB Tuned Resonance
Engineering Proof

Projects & Case Studies

Real engineering work demonstrating our capabilities from circuit design through firmware and production testing.

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CASE STUDY 01 // RF & PLANAR ELECTRONICS

Vanmen AeroTag 13.56 — Custom NFC PCB Tag

Shipped Product
Problem

Standard NFC stickers lack durability, branding flexibility, and reliable RF read range on metallic surfaces. Businesses need a rugged, customizable NFC tag for access control, product authentication, and smart interaction.

Solution

Designed a precision-tuned 13.56 MHz planar PCB antenna tag with custom silkscreen branding, dual-channel QR code redundancy, and universal tap compatibility across iOS and Android without any mobile application.

Technology

NXP NT3H2111 NFC IC, 13.56 MHz RF, ISO/IEC 14443 Type A, 888 Bytes NDEF EEPROM, I2C bus bridge, passive RF energy harvesting (2.9V DC).

Engineering

Impedance-matched 7 pF high-Q network, Vector Network Analyzer S11 return loss verification (< -22 dB), multi-layer copper geometry, and TG150 FR-4 substrate.

Result

Production-ready NFC tag with verified read range across major smartphone platforms. Available with MOQ of 10 units.

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CASE STUDY 02 // INDUSTRIAL COMMUNICATION

Industrial Modbus Communication Gateway

Engineering Completed
Problem

Industrial facilities required a reliable bridge between legacy RS-485 Modbus RTU machinery and modern IP-based monitoring, operating in high electrical noise environments with inductive voltage spikes.

Solution

Developed a galvanically isolated RS-485/Modbus RTU to Modbus TCP gateway with TVS diode transient suppression, optocoupler isolation, and fail-safe watchdog firmware for 24/7 continuous operation.

Technology

STM32 ARM Cortex-M, RS-485 differential bus, Modbus RTU/TCP, FreeRTOS deterministic task scheduling, 2.5 kV galvanic isolation.

Engineering

4-layer PCB with uninterrupted ground reference planes, DMA-driven UART for zero-copy frame parsing, and brownout reset handling.

Result

[PLACEHOLDER — Specific client deployment metrics and telemetry rates protected under NDA. Architecture details available upon consultation.]

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CASE STUDY 03 // CONNECTED IOT & LOW-POWER

IoT Environmental Monitoring System

Engineering Completed
Problem

Agricultural and field operations required real-time soil moisture and environmental monitoring across distributed locations with no reliable mains power or grid infrastructure.

Solution

Engineered solar-powered wireless sensor nodes with ultra-low-power sleep profiling, long-range LoRa communication, and MQTT telemetry to a cloud monitoring dashboard.

Technology

ESP32 wireless SoC, LoRa 868/915 MHz, MQTT over TLS, Solar MPPT charge controller, precision analog sensor front-ends.

Engineering

Deep-sleep current consumption optimized to micro-amps, conformal-coated outdoor PCB, and secure over-the-air (OTA) firmware upgrade mechanism.

Result

[PLACEHOLDER — Operational deployment details and sensor node counts protected under NDA. Performance figures shared during technical consultation.]

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Confidential Engineering Work

Due to client non-disclosure agreements, proprietary schematics, firmware source code, and client project metrics cannot be publicly displayed. Relevant engineering capabilities and verified competencies can be discussed during a technical consultation.

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What We Offer

Engineering Services & Solutions

Complete hardware and software capabilities organized across 8 disciplines and tailored for industry applications.

⚡

Embedded Systems

Custom 32-bit hardware platforms, sensor front-ends, and low-power architectures.

📐

PCB Design

Multi-layer schematic design, signal integrity, and DFM-verified layout in Altium & KiCad.

💻

Firmware Development

Deterministic bare-metal and FreeRTOS C/C++ firmware with modular peripheral drivers.

📡

IoT Development

Connected edge devices with WiFi, BLE, LoRa, or Cellular and secure MQTT telemetry.

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Industrial Communication

Isolated RS-485, Modbus RTU/TCP, CAN 2.0B / J1939, and multi-drop field networks.

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Hardware Prototyping

Rapid breadboard-to-SMT physical prototypes, bench validation, and functional verification.

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Product Development

End-to-end realization from feasibility and bench testing to production files.

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Production Engineering

DFM/DFA review, Gerber packages, pick-and-place centroids, and BOM lifecycle sourcing.

SOLUTIONS ORGANIZED BY APPLICATION DOMAIN

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Industrial Electronics

Isolated controllers, Modbus gateways, sensor instrumentation, and motor drivers designed for noisy factory environments.

RS-485 · Modbus · CAN Bus · 24V I/O
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IoT & Connected Devices

Edge hardware, sensor nodes, cellular bridges, and cloud telemetry modules with secure over-the-air firmware updates.

ESP32 · LoRa · MQTT over TLS · BLE
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Agriculture & Energy

Precision irrigation controllers, soil moisture arrays, MPPT charge controllers, battery management, and solar telemetry.

Solar MPPT · BMS · Low-Power · IP67

How We Work

Our systematic approach to hardware and firmware development ensures quality at every stage.

01

Requirements Analysis

02

Architecture Design

03

Hardware & Firmware Development

04

Prototype & Testing

05

Production & Support

Why Vanmen

We bridge the gap between abstract software and tangible electrical circuits with uncompromising standards.

01

Unified Hardware & Firmware Synergy

By developing schematics, PCB layouts, and firmware drivers under one roof, we eliminate pinout mismatches, timing contention, and peripheral conflicts before boards ever reach fabrication.

02

Robust Design for Hostile Environments

Industrial electronics encounter voltage spikes, inductive kicks, and ground loops. We engineer optocoupler isolation, TVS protection diodes, differential signaling, and brownout reset handling into every unit.

03

Deterministic, Non-Blocking Code

We avoid blocking delay loops. Our firmware utilizes hardware interrupts, Direct Memory Access (DMA), and FreeRTOS task prioritization to ensure zero jitter and 100% predictable real-time execution.

04

DFM & Production Ready Files

A prototype is only valuable if it can be manufactured reliably. We provide complete fabrication outputs including Gerbers, drill maps, pick-and-place centroids, and verified BOMs with active lifecycle parts.

Technologies & Protocol Stacks

We specialize in reliable microcontrollers, robust industrial protocols, and proven real-time operating systems.

ARM Cortex-M STM32 ESP32 & Wireless Nordic / TI / NXP RISC-V / RP2040 Embedded C FreeRTOS RS485 Modbus MQTT CAN Bus

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