IoT-Device-Test-Environment

📘 Project Overview

This repository contains the project-independent layer of a fully automated HIL (Hardware-in-the-Loop) test environment designed for testing IoT-connected devices.

The system targets an ESP32 board connected to a cloud-based MQTT broker. Through this broker, the ESP32 receives commands to control an industrial water pump via a connected inverter. Communication between the ESP32 and the inverter is achieved using the Modbus RTU protocol.

🧰 Features

• Supports MQTT and Modbus RTU protocols
• Provides Python APIs for developing custom test cases
• Designed for HIL testing of embedded systems with cloud connectivity

📦 Dependencies

This project depends on the following third-party libraries:

• paho-mqtt
• pymodbus

⚠️ These libraries must be manually installed prior to using this environment.

🔒 Confidential Components

This repository includes only the base framework of the test environment. A project-specific layer with custom APIs was also developed but is excluded due to confidentiality constraints.

🧱 Architecture

The diagram below outlines how the full test environment is structured and intended to be used.

🧩 Software Architecture

The software architecture includes components for MQTT communication with the cloud and Modbus RTU communication with the IoT device. It provides Python APIs for creating test cases.

Note: This repository contains the project-independent layer only.

🛠️ HIL Hardware Environment

The diagram below illustrates the physical HIL setup to be used during testing.