WaveShare Ethernet to UART Converter for Raspberry Pi Pico 10/100M 2-CH

Ethernet-to-UART bridge for Raspberry Pi Pico

This converter adds wired Ethernet to a Raspberry Pi Pico through its UART pins, letting the microcontroller join a local network without a separate Wi-Fi module. It suits hobbyists, students and embedded engineers who need reliable cable connectivity for IoT sensors, remote monitors or small automation tasks. The board mounts directly on the Pico header and draws power from the same 3.3 V or 5 V rail.

Dual-channel transparent transmission

Each of the two UART channels operates independently, passing serial data to and from the network without protocol conversion. The on-board MAC and PHY handle 10/100 M full-duplex or half-duplex links with auto-negotiation and Auto-MDI/MDIX, while jumpers let you remap pins for custom layouts. Four socket modes — TCP client, TCP server, UDP client, UDP server — plus DHCP and DNS support cover most lightweight network topologies.

Handles typical Pico workloads at up to 921.6 kbps

Baud rates from 300 to 921.6 kbps give enough headroom for telemetry streams, command shells or modest file transfers over TCP or UDP. The KEEPALIVE mechanism helps maintain long-lived connections through quiet periods. Operation is rated from -40 °C to 85 °C, so the module survives industrial cabinets or outdoor enclosures, but it lacks wireless radios, PoE or higher-speed Ethernet for bandwidth-heavy applications.