open-source

USB to RS-485 Converter

A USB serial adapter for half-duplex RS-485 networks, with automatic transmit-enable control and several connector options.

Remix this board → View source on GitHub ↗

License: CC BY-SA 4.0
Source revision: v11
Last mirror: Sep 10, 2026
Git commit: e3bfcce6f133

About USB to RS-485 Converter

A USB serial adapter for half-duplex RS-485 networks, with automatic transmit-enable control and several connector options. Original two-layer design for adaptation to ViaGrid; rerouting and testing are required.

Published design files

Wireless & connected · two copper layers
Open source (CC BY-SA 4.0) · SparkFun Electronics
Mirrored at e3bfcce6f133

Canonical source stays in the upstream git repository (and in WalGit after a successful mirror push). Generated renders and 3D models use artifacts/viagrid/usb-rs485-converter/e3bfcce6f1337815f9c0c660933a33232da7d610/996399a96546b9fb on the artifact CDN and are not checked into git.