USB Relay Controller Board at a Glance...
- 2 Relays Installed on a Circuit Board
- Onboard USB Interface Module
- Plugs Directly into USB Port
- Mounts as a Virtual COM Port - Industry Leading Command Set
- Send Specific Commands to Trigger Relays
- Control Any or All Relays
- Program in Almost any Language
- Read 0 to 5 Volt Sensors - ProXR Lite Versions
- Industry Leading Command Set
- Not Expandable - ProXR Versions
- Industry Leading Command Set
- Expandable to 256 Relays
Selecting the Proper Amperage
For more information on selecting a board with the correct relay amperage for your application see Choosing a Proper Amperage.
Selecting The USB Interface
By selecting the USB interface you will be sending commands through the USB port of your computer to the board. Boards on this page are equipped with a ZUSB communications module that adds USB communications to the board. A command consists of a few bytes of data in numerical format usually between 2 and 6 bytes. Once the command has been received, the controller processes the command and the relay activates.Selecting a USB Relay Controller Board
The 2-Channel boards are available in the ProXR Lite and ProXR versions. Both versions have the same firmware installed and accept the same ProXR command set, the industry leading command set for controlling relays. The ProXR lite version is non-expandable, the ProXR version is expandable to 256 relays. When you find your controller click on the Full Description link to view full specs, watch setup videos, download software and purchase.
