The IoT modular training system provides open-source software resources and hardware equipment, and schools can develop and design IoT related applications based on their own professional characteristics.

The software part includes: upper computer software, gateway program, main control board program, communication protocol, etc. The system provides an object-oriented, reusable collection resource library. The resource library can complete a series of common programming tasks, including string management, data collection, database connection, and file access, and can also solve the function calling problems required for various specialized development tasks. At the same time, it also provides a demo program for teaching use, making it convenient for beginners to experience learning.

The hardware part includes: handheld terminal (Android phone), intelligent gatewayA8（+Coordinator, temperature and humidity sensor, illuminance sensor, smoke sensor, human infrared sensor, resistive pressure sensorPM2.5sensorAngle sensor, gas sensor, infrared repeater, DC motor, stepper motor, capacitive touch button module0.96 Inch LCD screen display moduleHelp buttonRFIDAccess controlDigital tubes, relays, buzzers, etc. Provide a schematic diagram of the sensor module design, with standard interfaces reserved for each module to facilitate later module expansion and independent system development. Students can freely design and weld sensor modules and controller modules according to their practical training needs, and connect them to the main control board.

The system achieves data collection and device control through upper computer software, platform software, and gateway module. The system supports multiple wireless communication protocols, such as ZigBee, WIFI, LoRa, and other protocols. During the training design, different communication methods can be selected according to the needs to send/receive commands to the main control module, achieve control of the control module, and collect data from the sensing module.

Through systematic training, students can master the entire process from planning and design, wiring and installation to debugging and operation. The simulation of real industry applications is condensed into practical training projects, which enhances students' project coordination and independent development abilities, and further improves their development level of IoT systems. It truly integrates teaching, practical training and experience functions, reflecting the progressiveness of the system.