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One wire relay card - 8 SPDT channels for Home Automation

One wire relay card - 8 SPDT channels for Home Automation

This is eight channel SPDT relay board with 1-Wire interface. It can be used in Home/Industrial Automation applications.

Relay Type:

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starts at $6.90
Quantity: +-
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  • 8 x SPDT relays, selectable during purchase:
    • RAS-12-15 (10A / 250VAC, 15A / 120VAC, 15A / 24VDC)
    • JQC-3FC/T73 (7A / 250VAC, 10A / 125VAC, 12A / 120VAC, 10A / 28VDC)
  • 1-Wire interface
  • 2 x screw terminal blocks for easy 1-wire network connection, each with GND and 1W
  • Power supply: 12V DC / 300mA
  • Chipset: DS2408
  • Led-s for relays and power on
  • Large number of free software and source code
  • Supported by One Wire Viewer and TMEX of MAXIM-DALLAS and Denkovi 1-Wire Command Line Tool
  • Operating temperature range: from -30ºC to +80ºC
  • PCB parameters : FR4 / 1.5mm / two layers / metallized holes / HAL / white stamp / solder mask / Extra PCB openings for better voltage isolation / Doubled PCB tracks for better voltage isolation
  • Dimensions: 84mm x 99mm
  • Box for DIN rail (optional)
  • User manual: here


The package contains

  • 1 x Denkovi 1-Wire Eight Channel Relay Module


Typical applications

  • Home Automation
  • Industrial Automation
  • Distributed systems


Typical connections

Many relay boards can be easily connected in one wire network to computer in the way shown bellow. It must be used some Computer<->One Wire converter. For example we have such 1-Wire converter in stock (not included in this auction) but any other one-wire converter could do the job.


Of course any microcontroller architecture supporting 1-wire network could be compaitable with the relay boad as well.



Device overview




There are many 1-Wire software available for this relay board. One such sofwtare is OneWireViewer. With this software, it can be just easily tested and simple turn on/off commands can be executed.


Denkovi 1-Wire command line tool

We have created as well special command line utility for this 1-Wire relay board. The main goal of this project is to help you to use our 1-Wire relay boards easily and without any specific knowledge how do they work. It works on Windows/Linux.

Typical applications for this software are:

  • Create desktop icons to turn particular relays
  • Create BAT/BASH files to make more complex logic (like timers for example)
  • The commands can be executed from PHP script
  • Control our 1-Wire relay boards from Android / iPhone mobile devices
  • The 1-Wire relays can be controlled from each software/platform which can run external executable files or commands in command line promt



  • User manual - here
  • One Wire drivers - here
  • DS2408 documentation - here
  • Denkovi 1-Wire command line tool - here

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