USB Relay

USB Relay at a Glance...

• Relays Installed on a Circuit Board
    - High Reliability Across a Wide Range of Conditions
• Onboard USB Interface Module
    - Connects Directly to a USB Pport
    - Mounts as a Virtual COM Port for Seamless Integration
• Industry Leading ProXR Command Set
    - Compatible with Almost Any Programming Language
    - Send Precise Commands to Control Relays
    - Supports Toggle, Flash, and Timing Operations
• ProXR AD8 Command Set
    - Reads 0 - 5V Sensor Iinputs
    - Monitors External Sensors or Contact Closures
    - Direct Relay Control Via Input Signals

USB Relay

The USB Relay interfaces directly with a host computer via USB and mounts as a virtual COM port, enabling command-level control of one or more relays on the board. USB supports high-integrity, low-latency communication across a virtual COM port. When communicating over USB, all relay commands are transmitted over a direct USB connection to the controller, ensuring stable, high-speed data exchange without additional configuration.

The ProXR Command Set

Our onboard firmware is built around the ProXR Command Set - one of the most powerful and versatile command libraries available. The command library includes an extensive range of functions for relay control, timing, configuration, and status monitoring - giving you precise, access to every feature of the board.

Developers can integrate ProXR commands into virtually any programming environment through virtual COM port communication. For users who prefer not to write code, compatible control software is available, offering a straightforward interface built on the same command architecture.

Choosing the Right USB Relay

How many relays do you need? Below, you'll find a list of available USB Relays, categorized by the number of relays installed on the board. Simply select the number of relays you require, and click the corresponding link. You'll then be directed to a page where you can choose the amperage of the relay that fits your needs.