USB Digital Output Module / USB Relay Module – 4 Channels

  • LucidControl DO4 - 4 Channel Digital Output USB Module
  • LucidControl DO4 - 4 Channel Digital Output USB Module



USB Digital Output Module / USB Relay Module – 4 Channels

Control of 4 digital output channels or relays

The USB Digital Output Module is the control solution for digital lines. The USB Digital Output Module allows the generation of high/low signals as well as to control power consumers.

  • USB Digital Output Module options
  • Output Configuration Function
    Solid State Relay Interface The optical and potential insulated outputs are realized by using solid state relays (SSR). The USB Relay Module with SSR provides the best overall capabilities and high protection level for controlling power loads like pumps, fans or heating elements by statically switching or by periodically pulsing. Each digital output is rated with 30 V and 0.75 A and can switch loads up to 22.5 Watt.
    Open Collector Interface The outputs are realized by using transistors providing Open Collector characteristic. The USB Digital Output Module with open collector outputs is best suited to dim lights or LEDs or to generate fast general purpose digital output signals. Each output is rated with 30 V and 0.75 A and can switch loads up to 22.5 Watt.
    SPDT Relay Interface Using the USB Relay Module with mechanical SPDT (C-Type) relay switches allows to switch power loads as well as to switch or toggle signals e.g. for measurements without distortion. Mechanical relays provide a very high protection level.

    Please find here more information about the characteristics of the different USB IO Module outputs.

  • Digital Output operation modes
  • For most flexibility each of the 4 channels of the USB Digital Output Module can be configured on one of the following modes:

    Mode Function
    Reflect Mode Generates a digital output signal by setting the channels state directly.
    Duty-Cylce Mode Generates a Pulse Width Modulation (PWM) by configuring cycle time and duty cycle.
    This mode can be used in order to control the power of loads by pulsing them periodically.
    On-Off Mode Generates a time sequenced output signal. Using this mode the USB Digital Output Module can be used to realize e.g. time switches.

  • High speed output processing
    The USB Digital Output Module provides functions which allow to access the outputs without direct interaction of the host computer. This allows a precise timing which would not be realizable if the host computer was involved.

  • Optical indication of digital output states
    The state of each digital output is reflected by a LED

  • No Power Supply needed
  • All LucidControl are power supplied by USB and do not need additional power supply.

  • Industrial ready Design
  • The housing of LucidControl can be directly mounted on Din-rails ready for switch board assembly.
    Using industrial standard IO connectors ensures reliable interconnection.

  • Easy installation
  • LucidControl modules are easy to install and start working immediately after set up.

  • Compatible with Windows, Linux, Raspberry Pi and Beagle Bone

  • Drivers and Software
  • LucidControl provides drivers for all major operating systems. Command line tools and APIs for Windows and Linux are available.

Factsheet of LucidControl USB data acquisition and control modules

LucidControl product series combines many advantages and changes a computer into a flexible data acquisition and control system.

Highlights Modular IO data acquisition and control system
Processing of various analog and digital signals
No power supply needed
Most simple installation
Consistent and easy usage for the whole series
Applications Building services
Control engineering
Home automation, smart home
Energy management
Logging and Monitoring
Camping and hobby
Portability Platform independent
Works with Windows® and Linux
Compatible with popular Raspberry Pi®
API for Java®, dotNET and Python
Services Web applications
Internet remote access
Smartphone access
DIN-rail mountable
Switchboard assembly
Reliable Connectors

Related Documents

Documentation Online documentation – LucidControl DO4 USB Digital Output / USB Relay Module
DO4 – User Manual LucidControl – User Manual

Read more about the LucidControl Product Series

Short description of the USB Digital Output Module

Overview of LucidControl Digital IO Modules

SKU: LCTR-DO4- Category:

Short Description

USB Digital Output Module and USB Relay Module

  • 4 digital outputs

  • Available in 3 options

    • Solid state relays for general purpose applications

    • Mechanical relays for switching loads and signals

    • Open collector outputs for fast applications

  • Opto insulation option

  • Precise timing functions

Additional information


50 x 80 mm


100 g


Solid State, Open Collector, Relay


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