USR-WIFI232-B2 Industrial UART to Wi-Fi Module
The USR-WIFI232-B2 is an industrial-grade serial-to-Wi-Fi module that provides seamless TTL UART to 802.11b/g/n wireless conversion, supporting transparent transmission, Modbus TCP, and MQTT gateway functions for robust IoT data acquisition and remote monitoring systems.
Features
- Industrial-grade UART to Wi-Fi bridge with transparent serial transmission and Ethernet support via pin header.
- Supports multiple IoT protocols including Modbus TCP to RTU gateway, MQTT client, and HTTPD Client modes.
- High-power RF performance with up to +19dBm transmit power for extended range in industrial environments.
- Configurable via serial AT commands, web browser, or host software for flexible integration.
- Wide operating temperature range from -40°C to 85°C for reliable deployment in harsh conditions.
Out of stock
The USR-WIFI232-B2 is a compact, industrial-grade wireless module engineered to bridge legacy serial devices to modern IP networks. It converts TTL UART signals to 802.11b/g/n Wi-Fi, enabling seamless integration of sensors, controllers, and instruments into IoT ecosystems. The module operates on a 3.3V DC supply and features robust RF performance with high transmit power for reliable connectivity in challenging RF environments.
Its architecture supports multiple operational modes including transparent transmission, serial command, and protocol-specific gateways like Modbus TCP to RTU. This flexibility allows developers to implement it as a serial server, an MQTT gateway for cloud connectivity, or an HTTP client for web services. The module’s industrial design ensures stable operation across a wide temperature range, making it suitable for telemetry, remote monitoring, and industrial automation applications where wired serial connections are impractical.
Additional Information
| Weight | 0.006 kg |
|---|---|
| Dimensions | 7 × 8 × 3 cm |















