System Online // V.2026

Engineering The Hardware Edge

Expert in Embedded hardware, firmware, UI, apps, and website design

From bare-metal silicon to fully autonomous IoT ecosystems. We specialize in custom PCB design, precision microcontroller firmware, and commercial-grade smart automation hardware engineered for the Indian market.

Hardware & Software Ecosystem

⚙️ ESP8266 & ESP32
⚙️ STM32 & STM8
📐 EasyEDA
🏭 JLCPCB & LionCircuits
💻 C / C++
🐍 Python
☁️ Blynk IoT Platform
🌐 Web & UI Design

Flagship Hardware

Nexus 4 System
Smart Relay Hub

Nexus 4 System

A sleek, 4-channel smart relay hub managed via the dedicated Astatine web interface. Designed for low-latency room automation with Over-the-Air (OTA) update capabilities and dynamic edge control architecture.

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Smart Motor Starter
Resource Conservation

Smart Motor Starter

The MayurIoT gateway. An industrial-grade IoT device engineered to protect heavy-duty water pumps. Features full phone-controlled operation, programmable auto-stop timers to prevent water wastage, and active load monitoring.

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Precision Tank Guardian
Infrastructure Controller

Precision Tank Guardian

100% automated water infrastructure controller featuring True AC math, localized SD data-logging, and peak detection for rectified DC signals. Ensures flawless resource management.

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Power Diagnostics Relay
Industrial Protection

Power Diagnostics Relay

STM32-based industrial over/under voltage protection node featuring precise Current Transformer calibration and custom bus-hardened drivers for harsh electrical environments.

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Custom Edge Hardware
Specialized Builds

Custom Edge Hardware

Showcasing specialized hardware builds, ranging from BS6 ICE sequential firing ECU simulators to ultra-low latency MIDI conversion modules and the modular Quick Timer (QT) logic add-ons.

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Engineering Capabilities

PCB & Firmware Design

Ground-up hardware development from raw silicon to functional ecosystem. Specializing in professional layouts and component routing.

  • ESP8266 & ESP-12F Architecture
  • STM8 & STM32 Bare-Metal Dev
  • Custom Circuit Fabrication

Embedded IoT Systems

Connecting the physical grid to digital interfaces. Expertise in integrating microcontrollers and building custom local web servers for edge devices.

  • Blynk IoT Platform Integration
  • Secure Logic Pipelines
  • Remote Device OTA Management

Meet the Developer

Mayur Sen

Founder | Astatine Technologies & MayurIoT

I am an embedded systems developer based in Nawada, Bihar. I specialize in bridging bare-metal hardware design with full-stack deployments. My focus is engineering highly autonomous, commercial-grade systems specifically optimized for cost-effective reliability. Whether routing complex PCB traces or coding an ESP8266 to communicate with the cloud, the goal is always performance and innovation.