USB IO Relay Boards

A USB interfaced eight channel opto-isolated digtial inputs module based on MCP2200 chipset. Suitable for kiosks systems, data acquisition, home automation applications, industrial automation, hobby projects. Supported by DRMv3 software and Denkovi Relay Command Line Tool, various software examples available.

The second version of our popular USB 4 Relay Board with several improvements. It comes with MCP2200 chipset, 4 SPDT Relays each rated with up to 10A, relays states saving in internal EEPROM and improved USB interference resistance. Suitable for home automation applications, hobby projects, industrial automation. The free DRM / DRMv3 software allows to control relays manually, create timers (weekly and calendar) and multivibrators, use date and time for alarms. We have developed and tool for control from command line. We provide various software examples.

This is Four Channel relay board controlled by computer USB port. The usb relay board is with 4 SPDT relays rated up to 10A each. You may control devices 220V / 120V (up to 4) directly with one such relay unit. It is fully powered by the computer USB port. Suitable for home automation applications, hobby projects, industrial automation. The free software DRM and DRMv3 allows to control relays manually, create timers (weekly and calendar) and multivibrators, use date and time for alarms. We developed also command line tool utility for controlling the relays. We provide software examples in Labview, .NET, Java, Borland C++, Python.

USB relay board with four channels and connected TCN75A temperature sensor to it.. The relays can handle up to 7A(10A) at 220VAC/120VAC and the sensor can measure temperature from -40 C up to +100 C with accuracy +-0.5 C (typical) and +- 3 C (max). The software we provide makes this usb relay card ideal for applications like temperature monitoring (USB thermometer), temperature loging or simple usb thermoregulator. Supported by DRMv3

This is relay card with eight SPDT relays which is controlled via PC USB port. We have created flexible software for this USB relay board, that allows you to make simple automation project or control from command line. We provide various examples in .NET, Java, VB6, BCB6, Labview, Python and others.

The relay module is with 16 SPDT relays. The relays are controlled via PC USB port and it is shown as virtual serial port (virtual com port). It is possible to control directly 220V / 120V devices with your PC usb port up to 15A max. There is flexible software for this usb relay board allowing to be designed simple automation project or control from command line. Supported by DRMv3 Software. Numerous software examples can be provided (VB6, BCB6, Java, .NET, Labview, Python). Works with Domoticz and OpenHAB home automation systems as well as with Node-RED IoT platform.

This is USB Relay Module with ModBus RTU protocol support and 16 relays (the type is selectable during purchase). The relays are controlled via PC USB port and it is shown as virtual serial port (virtual com port). It is possible to control directly 220V / 120V devices with your PC usb port up to 15A max. The module supports up to 16 independent timers with min. resolution 100ms. Supported by DRMv3 Software. Works with Home Assistant, OpenHAB home automation systems. There are lot of profesional ModBus software apps for this usb relay board allowing to be easily integrated in any ModBus automation project. Software examples are available as well. This is the PCB version.

The relay module is with 16 SPDT relays. The relays are controlled via PC USB port and it is shown as virtual serial port (virtual com port). It is possible to control directly 220V / 120V devices with your PC usb port up to 15A max. There is flexible software for this usb relay module allowing to be designed simple automation project or control from command line. Supported by DRMv3 Software. Numerous software examples can be provided (VB6, BCB6, Java, .NET, Labview, Python). Works with Domoticz and OpenHAB home automation systems as well as with Node-RED IoT platform.

This is USB Relay Module with ModBus RTU protocol support and 16 relays (the type is selectable during purchase). The relays are controlled via PC USB port and it is shown as virtual serial port (virtual com port). It is possible to control directly 220V / 120V devices with your PC usb port up to 15A max. The module supports up to 16 independent timers with min. resolution 100ms. Supported by DRMv3 Software. Works with Home Assistant, OpenHAB home automation systems. There are lot of profesional ModBus software apps for this usb relay board allowing to be easily integrated in any ModBus automation project. Software examples are available as well. This is the DIN RAIL BOX version.