Embedded systems • IoT • Firmware

We turn hardware ideas into reliable embedded products.

Manthana Tech Consultancy specialises in custom firmware and system design for STM32, ESP32, Zigbee, and IoT sensor devices – across HVAC, healthcare and industrial applications.

Based in Bangalore, India, proudly serving clients all over the world.

15+ years
Embedded & IoT experience
End-to-end delivery
From PoC to production
Global work
India & international clients
Services

What Manthana Tech does for you

We help hardware teams who need dependable firmware and IoT expertise without building a large in-house embedded team.

Custom firmware development

Bare-metal and RTOS-based firmware for STM32, ESP32 and similar MCUs, optimised for reliability, safety and low-power.

STM32 · ESP32 FreeRTOS Bootloaders Drivers & HAL

IoT & connectivity solutions

End-to-end IoT stack: Zigbee, BLE, Wi-Fi and cloud integration, from field sensors to gateways and dashboards.

Zigbee BLE / Wi-Fi MQTT / REST Cloud ready

Hardware-aware system design

Support for board bring-up, sensor selection and system architecture so that hardware, firmware and cloud work together.

Board bring-up Sensor design Low-power DFM guidance

HVAC control systems

Control and monitoring firmware for smart thermostats, chillers and building automation – tuned for stability and safety.

PID control Modbus / BACnet* Energy logging

Healthcare device firmware

Firmware for patient-centric devices where data integrity and user safety are critical.

Sensor fusion Alarms & events Audit trails

Consulting & code reviews

Independent review of architecture, code and test strategy to improve reliability and maintainability of existing systems.

Architecture review Optimisation Mentoring
Domains

Where we add the most value

Deep experience across embedded systems that must run 24×7, often in noisy, real-world environments.

  • HVAC & building automation Smart thermostats, chillers, AHU, VFD integration
  • Healthcare & wellness devices Vitals monitoring, wearable & bedside devices
  • Industrial IoT & sensors Data logging, gateways, field connectivity
  • Smart home & consumer IoT Connected appliances, lighting, environment
Process

Simple, predictable engagement

A lightweight process so you know what’s happening at every stage, without heavy overhead.

  1. 1

    Discovery & requirements

    We understand your hardware, timelines and constraints, then define a clear scope and success criteria.

  2. 2

    Architecture & PoC

    High-level design followed by a proof-of-concept on dev boards to de-risk the approach early.

  3. 3

    Implementation & testing

    Iterative firmware development with unit tests, hardware -in-loop testing and integration with your team.

  4. 4

    Handover & long-term support

    Documentation, training and optional ongoing support for enhancements, bug-fixes and new variants.

Experience snapshot

Sample engagements

Real-world projects where embedded expertise and careful architecture made the difference.

Connected HVAC controller platform

STM32-based controller Multi-protocol 24×7 operation

Designed and implemented firmware for a modular HVAC controller with sensor inputs, actuator outputs and cloud connectivity for remote monitoring.

  • Time to stable field deployment < 4 months
  • Typical uptime in production > 99.5%
  • Key contributions Architecture, drivers, OTA, diagnostics

Sensor-driven healthcare PoC

ESP32 + sensors Secure data channel

Rapid prototype of a connected healthcare device integrating multiple sensors, with secure data upload for clinician review.

  • PoC turnaround Under 8 weeks
  • Scope Firmware, data model, basic UI
  • Outcome Used to validate concept & raise funding
Contact

Tell us about your embedded project

Share a few details and we’ll get back with a practical next step – a brief call or a quick architecture review.

Example: “Need firmware for ESP32-based smart thermostat with Wi-Fi + cloud integration, pilot in 4 months.”
This form will send an email to info@manthanatech.com.
Phone / WhatsApp
Location
Bangalore, India – collaborating remotely with clients worldwide.
Preferred engagement
Short, focused projects with clear deliverables, or long-term firmware partnership.
Architecture review Fixed-scope PoC Ongoing support
Typical tools
STM32CubeIDE, ESP-IDF, FreeRTOS, Git, Jira, CI pipelines.
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