MEI temperature and humidity monitoring system is a specialized IoT solution developed to continuously monitor environmental conditions in factories, warehouses, clean rooms, laboratories, cold storage, data centers and areas that require high-precision temperature and humidity control. The device uses digital sensors SHT30 High stability, allowing simultaneous measurement of temperature and humidity with low errors, ensuring reliable data for management and monitoring.

The controller is developed on a microcontroller platform STM32, supports network connection Wi-Fi or Ethernet (LAN) to transmit real-time data to the Cloud platform via protocol MQTT. The system allows configuring the sampling cycle, data transmission cycle, update time and automatically synchronizes time with the server to ensure the accuracy of stored data.

The device continuously collects temperature and humidity data from the SHT30 sensor, directly displaying the measured value on the 7-segment LED display With high brightness, easy to observe at the scene. At the same time, data is transmitted to the Web/App platform for real-time display in the form of Dashboard, trend chart, data table and operating history, helping managers easily monitor environmental developments in each area.

The system allows flexible configuration of warning thresholds High, Low, High-High and Low-Low for each temperature and humidity parameter, and also supports Delay Time settings to eliminate false alarms due to instantaneous fluctuations. When the value exceeds the threshold or a device connection is lost, the system will activate horn and warning lights in place, and send instant notifications via Web/App Notification (Push Notification), Email or extended alert channels according to system configuration.

To ensure data is not lost in case of loss of Internet connection or Cloud server, the device integrates Offline Data Logging. All measured data will be saved in real time in memory and automatically Auto Synchronization to the server as soon as connectivity is restored, ensuring database integrity and continuity.

Supported software platform Multi-user management and access authorization by each level such as Administrator, Manager and Operator. Each user group is granted permission to view data, configure devices, change alarm thresholds, confirm alarms or export reports according to the authorized scope, helping to enhance security and control of the system.

All historical data is stored on the server, supporting search over time, displaying trend analysis charts and Export reports in Excel, PDF or CSV format by day, week, month or optional time period. Reports include temperature data, humidity, alarm history, equipment status, connection loss times, and operating logs, meeting quality management, data retrieval, and record keeping requirements in factories and manufacturing facilities.

With open architecture, flexible scalability and safe data storage mechanism, the MEI temperature and humidity monitoring system provides an accurate, stable and reliable environmental monitoring solution, contributing to improving management efficiency, minimizing risks in production and meeting requirements for controlling environmental conditions according to current standards.