Embedded Systems & Cybersecurity

We design embedded systems and advance the cybersecurity maturity of critical infrastructure.

Microiotronic delivers end-to-end engineering — from embedded systems programming to industrial cybersecurity risk assessment aligned with IEC/ISA 62443. And we built our own software to run it.

Embedded systems programming IEC/ISA 62443 risk assessment In-house security software
Embedded Systems
Programming & firmware
IEC/ISA 62443
Risk assessment
In-house Software
For 62443 workflows
Secure Engineering
Design to deploy
Our products

Our products speak for us.

We prove our secure-engineering approach in our own products — built, shipped and grown from scratch.

LUMORA

Lumora — Metabolism Simulator

A 16-language iOS & Android app that tracks metabolic health holistically: it logs your nutrition from a curated 452-food database; visualises insulin resistance, HOMA-IR and hormone (cortisol, leptin, ghrelin, melatonin) time-series; and shows what your body is burning via a metabolic-burn indicator and a cellular-energy (Krebs cycle) model. Plan your day with a calorie budget and circadian score; it runs on real-time cross-device sync and an end-to-end secure REST backend, KVKK/GDPR-compliant.

🧬 Metabolic panel 📈 Hormone time-series 🔥 Metabolic burn indicator ⚡ Cellular energy (Krebs) 🍎 452-food database 🌍 16 languages 🔄 Real-time sync 🔒 KVKK/GDPR compliant
Lumora — Metabolic panel
Metabolic panel
Lumora — Hormone time-series
Hormone time-series
Lumora — Cellular energy cycle
Cellular energy cycle
Lumora — Nutrition & calorie tracking
Nutrition & calorie tracking
Lumora — 16-language support
16 languages
Lumora — Profile & circadian
Profile & circadian
CSRAS 62443

CSRAS 62443 — IEC 62443 Risk Assessment Software

Our own desktop software that lifts IEC/ISA 62443 OT risk assessment out of scattered spreadsheets into a living visual model of the plant. Draw zones & conduits on the Purdue model; security levels (SL-T ↔ SL-A), residual risk, compliance scores and per-asset gaps (FR1–FR7) are computed automatically. A drag-and-drop attack-path simulator shows how far an attacker can reach; one click produces executive risk report, audit checklist and attack report PDFs. Bilingual (Turkish/English), protected by machine-bound online licensing.

🗺️ Zone & conduit designer 🏭 Purdue architecture 🎯 SL-T ↔ SL-A · residual risk ⚔️ Attack-path simulation 🛡️ Per-asset SL-A (FR1–FR7) 📊 Automatic PDF reports 🧩 MITRE ATT&CK for ICS 🌍 TR / EN · licensed
See the details → Request a demo
CSRAS 62443 — Purdue architecture view
Purdue architecture
CSRAS 62443 — Zone & conduit designer
Zone / conduit designer
CSRAS 62443 — Decision dashboard
Decision dashboard
CSRAS 62443 — Attack simulator
Attack simulator
CSRAS 62443 — Asset SL-A matrix
Asset SL-A matrix
What we do

Two disciplines: embedded systems & industrial cybersecurity

We build software close to the hardware, and secure those systems to the IEC/ISA 62443 standards.

🧩

Embedded Systems Programming

From microcontrollers to real-time firmware — low-power, robust and field-updatable embedded software.

🔌

IoT & Connected Devices

End-to-end data flow from sensor to cloud — secure connected devices with encrypted comms and remote management.

📋

IEC/ISA 62443 Risk Assessment

Standards-aligned OT risk assessment with zones & conduits modelling, threat analysis and target Security Levels (SL).

🧪

Security Process Software

Our in-house software that accelerates, reports and makes the 62443 risk-assessment steps traceable.

🔒

Secure Software Development

Secure-by-design software through threat modelling, secure coding and code review.

🏭

OT / Industrial Security

Protecting operational technology and control systems with network segmentation, hardening and continuous monitoring.

Case study · Embedded software

WeatherScope — an example of our custom embedded software development

We make the embedded and IoT capability above tangible with a device we designed and built ourselves: WeatherScope, an ESP32-based compact smart weather station. From firmware and sensor integration to cloud connectivity and a web dashboard, it is our engineering end to end. Its standout feature: TFA WeatherHub wireless sensors can be registered directly to the system — so extra measurement points and sensor types are gathered in a single dashboard. High-precision sensors measure temperature, humidity and pressure; a circular display shows the time, live conditions and a 5-day forecast; it offers a trend analysis overlaying wind/pressure/humidity, a 24-hour history and a nowcast (instant-risk) analysis. We build the same end-to-end approach for your device, too.

📡 TFA WeatherHub sensor support ⚡ ESP32 🌡️ Temp · humidity · pressure 🌤️ 5-day forecast 📈 Trend analysis ⚠️ Nowcast risk 🕓 24-hour history 📶 Wi-Fi → cloud dashboard 🔋 Low power
WeatherScope — live weather
WeatherScope — 5-day forecast
WeatherScope — trend analysis
WeatherScope — nowcast risk
WeatherScope — 24-hour temperature history
WeatherScope — easy region selection
WeatherScope — quick location setup
IEC 62443-3-2 · In depth

We run OT risk assessment end to end

From defining the System under Consideration (SuC) to a prioritised mitigation roadmap, we follow the standard's ZCR steps exactly. Below we walk through how the process works — step by step and visualised.

01ZCR workflow — the standard's 7 steps
ZCR-11
SuC & Asset Inventory

Assessment boundary; every IACS asset, its type and Purdue level.

ZCR-22
High-Level Risk

Worst-case consequence and initial risk per zone (HLCRA).

ZCR-33
Zone & Conduit Split

Purdue + criticality + protocol; SIS, wireless, temp, external split.

ZCR-44
Tolerable Risk

Acceptance threshold; zones above tolerance go to deep analysis.

ZCR-55
Detailed Risk (DCRA)

Scenario-based risk; VA register & MITRE ATT&CK for ICS.

ZCR-5.66
Target Security Level

A 7-element SL-T vector (FR1–FR7) per zone.

ZCR-5.87
Residual Risk & Gap

SL-A from controls; Gap = SL-T − SL-A; SR-mapped mitigation.

02How risk is computed — two layers
High-level · HLCRA
Impact×Likelihood=Zone risk

Worst-case risk per zone, as if no controls existed — for prioritisation.

Detailed · DCRA
Threat×Vulnerability×Consequence=Finding risk

Scenario-based risk per finding; reduced to residual risk by existing controls.

03Zones & conduits — Purdue levels
L3Operations & OT-DMZhistorian · remote access
conduit · firewall / segmentation
L2Supervisory — SCADA / HMIengineering workstation
conduit · monitored crossing
L1Control — PLC / RTU / DCScontrollers
conduit · field bus
L0Field — sensors / actuatorssensing & actuation

Assets are grouped into zones by Purdue level + criticality + protocol; safety (SIS), wireless, temporary and external connections are moved to separate zones. Every crossing between zones is a conduit and is controlled.

04Security levels — they rise as the attacker grows
SL 1Casual / accidental
SL 2Simple tools · low resources
SL 3Sophisticated · OT-specific
SL 4Nation-state · APT

Each zone gets a 7-element target-level vector (SL-T) — one per FR1…FR7, not a single number. The level reached with existing controls is SL-A; the difference is the gap to close.

7 Foundational Requirements (FR)

  • FR1Identification & authentication (IAC)
  • FR2Use control (UC)
  • FR3System integrity (SI)
  • FR4Data confidentiality (DC)
  • FR5Restricted data flow (RDF)
  • FR6Timely response to events (TRE)
  • FR7Resource availability (RA)

Each FR → a baseline security requirement (SR) + enhancements (RE).

MITRE ATT&CK for ICS

We map threat scenarios to ICS-specific attack tactics:

Initial Access Execution Persistence Privilege Escalation Evasion Discovery Lateral Movement Collection Command & Control Inhibit Response Impair Process Control Impact

Deliverables

  • Asset inventory & zones/conduits model (Purdue L0–L3)
  • FR1–FR7 SL-T vs SL-A gap analysis
  • MITRE ATT&CK for ICS threat scenarios
  • Risk matrix (inherent & residual)
  • SR-mapped, prioritised mitigation roadmap
Relevant standards
IEC 62443-1-1 62443-2-1 62443-3-2 62443-3-3 62443-4-2
Our expertise

From hardware to standards, end to end

We go deep in three core areas and unite them under a single engineering language.

Embedded systems and hardwareEmbedded & Hardware

Rugged, field-proven systems down to the microcontroller, firmware and PCB level.

Industrial cybersecurityIndustrial Cybersecurity

Risk assessment, segmentation and continuous monitoring of critical infrastructure with IEC/ISA 62443.

Secure softwareSecure Software

Secure-by-design, standards-aligned and testable software engineering.

How we work

A clear path from idea to launch

Discovery

We understand the system, risks and goals on site.

Design

We define the architecture, data flow and security boundaries.

Build

We write clean, testable, standards-aligned code.

Test

We verify function and security together.

Launch & Support

We deploy, monitor and continuously improve.

About

A team that thinks embedded systems and industrial security together.

Microiotronic is a technology company working on embedded systems programming and industrial cybersecurity based on the IEC/ISA 62443 standards. While we make a system more efficient, we harden it against external threats at the same time.

We built our own software to accelerate risk-assessment workflows. The secure-engineering mindset we apply in products like Lumora, we bring to every project we partner on.

The Microiotronic team at work
FAQ

About embedded software & cybersecurity

The questions we hear most — our expertise and how we work.

What is embedded software development and which hardware do you work with?

Embedded software is low-level code that runs a device's hardware directly. We build real-time firmware for STM32, ESP32 and ARM Cortex-M microcontrollers — focused on low power, robustness and field (OTA) updates — delivering end-to-end solutions from sensor to cloud.

What does your industrial cybersecurity service cover?

We protect operational technology (OT) and industrial control systems (ICS/SCADA) to the IEC/ISA 62443 standards: risk assessment, zones & conduits modelling, network segmentation, system hardening, target Security Levels (SL) and continuous monitoring.

How does an IEC 62443 risk assessment work?

We follow the standard's 7-step ZCR workflow exactly: defining the System under Consideration, high-level risk (HLCRA), zone & conduit partitioning, detailed risk analysis (DCRA) mapped to MITRE ATT&CK for ICS, a target Security Level (SL-T) per zone across FR1–FR7, and a prioritised mitigation roadmap that closes the gap against existing controls.

Why work with a team that does both embedded systems and cybersecurity?

A team that works close to the hardware builds security as part of the design, not a layer bolted on afterwards (secure by design). With a single engineering language, firmware, network and process security are handled consistently — and vulnerabilities are caught before they reach the field.

Where do you provide services?

We are based in Ankara (Etimesgut), Türkiye — providing on-site embedded software and industrial cybersecurity consulting across Türkiye and remotely worldwide.

Got a project? Let’s talk.

An automation project, a security audit, or technical consulting — write to us.

ekin.yildirim@microiotronic.com
📞 +90 542 309 95 28 📍 Bağlıca, Etimesgut / Ankara, Türkiye