ESP32 Masterclass - circuitlabs.net

Modbus Gateway Implementation

Build a Modbus Gateway using ESP32 to bridge Modbus RTU (serial) networks with Modbus TCP/IP (Ethernet/WiFi) networks seamlessly.

Implement Modbus TCP/IP on ESP32 for communication over Ethernet or WiFi. Encapsulate Modbus frames within TCP packets for IP networks.

Configure ESP32 as a Modbus RTU Slave device. Respond to master requests, manage data registers, and emulate industrial sensors/actuators.

Implement a Modbus RTU Master on ESP32 to poll slave devices, read registers, and write coils for industrial control and monitoring.

Learn Modbus RTU basics for ESP32. Understand serial communication, master-slave architecture, and data models for industrial devices.

Use ESP32’s hardware Random Number Generator (RNG) for cryptographic applications, security protocols, and generating unpredictable values.

Explore secure usage of ESP32 eFuses for features like Flash Encryption key storage, Secure Boot enablement, and disabling debug interfaces.

Learn about ESP32 eFuses for permanent configuration storage (MAC address, security settings). Understand programming and read-only bits.

Utilize the high-resolution SYSTIMER peripheral on ESP32 for accurate timekeeping, scheduling, and synchronization across system events.

ESP32’s Timer Group (TIMG) peripherals. Configure general-purpose timers for precise timing, event generation, and watchdog functions.