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Tiny green circuit board with RJ45 and pin headers

Vszerda

Vszerda Upgraded Tiny USR-TCP232-T2 Serial Ethernet Adapter

SKU CH-D9HF-4A0RQ

Tiny serial-to-Ethernet module enables bidirectional transparent data transmission between TTL and RJ45 ports

  • Bidirectional TTL-to-Ethernet data flow
  • Cortex-M0 core for low-power operation
  • Web-based setup with DHCP and DNS
  • Virtual COM port support included
  • TCP, UDP and HTTPD client modes

Compact Serial-to-Ethernet Converter

The Vszerda USR-TCP232-T2 is a tiny module that bridges a TTL serial port to a wired RJ45 network link. It enables bidirectional transparent data transmission between a microcontroller UART and TCP/IP networks. The Cortex-M0 core provides low-power operation with fast, efficient packet handling. Configuration is performed through a built-in web interface.

Makers Integrating Legacy Devices

Engineers adding network connectivity to existing 232 or 485 equipment will find the virtual COM and multiple socket modes useful. The module supports TCP server, TCP client, UDP server, UDP client and HTTPD client roles. Buyers who need wireless connectivity or Power over Ethernet should look at alternative products.

Cortex-M0 Core with Web Configuration

The onboard Cortex-M0 processor runs the protocol stack and serves the configuration pages. It handles DHCP, DNS and virtual COM redirection without an external host. This architecture determines the module's ability to operate standalone in industrial automation or remote monitoring tasks.

Highlights

  • Bidirectional TTL-to-Ethernet data flow
  • Cortex-M0 core for low-power operation
  • Web-based setup with DHCP and DNS
  • Virtual COM port support included
  • TCP, UDP and HTTPD client modes

Specifications

No published specifications for this item yet.

Questions about this item

Will the USR-TCP232-T2 module connect to my older RS-232 or RS-485 equipment?

The module provides TTL-level signals; an external level-shift circuit is required to interface with RS-232 or RS-485 devices.

How can I confirm the module is transmitting data correctly after wiring it to my network?

Use a TCP/IP socket test tool or the virtual COM port driver to open a connection and verify bidirectional data flow between the TTL pins and the RJ45 port.

Does the package include the level-shift board or cables needed for RS-232 and RS-485 use?

Only the USR-TCP232-T2 module itself is supplied; level-shift circuits and any wiring must be sourced separately.

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