PUSR USR-WIFI232-B2 Industrial UART to WiFi Module

Description

The USR-WIFI232-B2 is a compact, industrial-grade communication module designed to seamlessly integrate legacy TTL UART devices into modern IEEE 802.11 b/g/n wireless networks. It implements a complete TCP/IP and UDP network stack, enabling reliable data transmission for IoT and embedded systems. The module supports multiple operational modes—Station (STA), Access Point (AP), and STA+AP—providing flexible networking options for bridge, router, or gateway deployments.

Engineered for industrial environments, the module operates on a 3.3V DC supply and tolerates temperatures from -40°C to +85°C. Its dual-path connectivity via UART and Ethernet interfaces allows for versatile integration with microcontrollers, sensors, PLCs, and other serial equipment. With support for transparent transmission, AT commands, and a user-friendly web interface, it simplifies the process of adding wireless capability to wired serial systems for remote monitoring and control.