BESIGN 2 in 1 Accessory ESP32-S3 WiFi Relay Module RS485 10A 250VAC

Industrial ESP32-S3 relay module for AIoT control

The BESIGN 2 in 1 Accessory combines an ESP32-S3 microcontroller with a single high-quality relay rated at 10A 250VAC or 30VDC. It targets engineers and integrators building AIoT systems that need wireless and wired control of 220VAC appliances or low-voltage devices. Onboard optocoupler and digital isolation protect the logic side from external high-voltage interference.

Sustained operation with isolation and status

Multiple isolation protection circuits and a unibody power-supply isolation stage deliver stable isolated voltage without an extra supply, keeping the module reliable during continuous duty. The RS485 interface links to Modbus industrial modules or sensors, while onboard TX/RX indicators let technicians verify communication health at a glance. The Xtensa 32-bit LX7 dual-core processor runs at 240 MHz, providing headroom for encryption and AI tasks without thermal throttling.

Replaces separate relay boards and wireless bridges

This single rail-mount unit consolidates a 10A relay, 2.4GHz Wi-Fi, Bluetooth 5, and isolated RS485 into one enclosure, removing the need to wire discrete modules together. The jump is worth it when a project demands Modbus connectivity plus direct 220VAC switching in a compact industrial form factor. Buyers who need more than one switched channel or a different supply voltage should look elsewhere.