Are you ready to explore Modbus, the “universal language” of industrial automation, combined with the power of the ESP32? This course is designed to transform you into a professional IIoT developer through hands-on practice with real hardware, including PLCs, DHT11 sensors, PCF8574 I/O expanders, and RS-485 modules.
Throughout this training, you will uncover the intricacies of both Modbus RTU and TCP protocols. You will master professional techniques ranging from solving RS-485 timing issues to splitting and merging 32-bit Float data across 16-bit registers. The highlight of the course is the IIoT Gateway project, where you will build a bridge between serial lines and Wi-Fi networks, streaming field data directly to the cloud.
Beyond simple data reading, you will experience advanced control using PCF8574 expanders for relay management and bit-masking techniques to handle multiple digital statuses within a single register. Additionally, you will learn how to implement robust auto-reconnect logic for Wi-Fi failures and static IP configurations for stable master-slave communication. We will even dive into hardware-specific troubleshooting, such as why certain modules require specific pin handling.






