Usb Four(4) Relay Module,board For Home Automation For Sale
Denkovi Assembly Electronics ltd.
USB Four Channel Relay Board for your Project
This is USB controlled relay board with 4 relays RAS-05-15 (each can handle 10A). You may use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenodis and others. It may help you building projects like robotics and home automation. Each such relay board requires one USB port. The more USB ports you have the more Relay boards you may connect. You may use it with our software - DRM (universal software for all our relay boards) or control with simple commands from command line promt. If you are software developer and need software example, please contact with us.
4 Relays RAS-05-15. Datasheet - here
Relay parameters: 15A/24VDC (120VAC), 10A/250VAC
PCB parameters: FR4 / 1.5mm / two layers / metalized holes / HAL / white stamp / solder mask / еxtra PCB openings for better voltage isolation / doubled high voltage tracks
Power Supply - from USB port
Current consumption - 400 mA
FT245RL. Datasheet - here
Leds: Relays, USB
Size - 77mm x 56mm x 17mm
Supported by DRM software (Windows 32/64 and Linux 32)
Supported by Denkovi Relay Command Line Tool (Windows 32/64 and Linux 32) - New
Software examples: VB6, BCB6, Java, .NET 2010 Express, LabVIEW Please contact with us for download.
Product code: DAE-CB/Ro4-USB
Documentation - here
No extra power supply
Free software with many functions
Control electrical devices according weekday/date/time
Create timers or pulses with our software
Open doors and windows via PC
The sale includes
1 x USB Four Channel Relay Board (DAE-CB/Ro4-USB)
DRM Software - Denkovi Relay Manager Software. CD is not included in the package but the software is available for download from this link
Each such device is shown as separate virtual com port (VCP) on your PC. The relay board outputs are controlled by FT245RL. It has 8 bit data output register (this device use only 4 of them). When data is sent to the register the outputs are set. If you are software developer - be sure "Synchronous Bit-Bang Mode" is selected! FTDI provides Bit-Bang Mode documentation. Also the baudrate must be set with high value - 921600 (to avoid the latency if any) See this. The board can not be controlled directly via COM port - you need to download our DRM Software to control the device. The unit can not work without PC. Only one such device can be supplied from single USB port. If you want to supply many such devices you need USB HUB with extra power supply.
Relay output characteristics
Relay outputs count
Extra PCB openings
Mounting holes diameter
USB ON (red)
USB port terminal
How to connect inductive loads
We can provide examples for the following platforms:
Visual Basic 6
Borland C++ Builder 6
VB.NET Express 2010
C#.NET Express 2010
Java example for Windows/Linux
Python command line example for Linux
Here it is an example for Labview which we created for our customers
Control Relays from Command Line
Denkovi Relays Command Line Tool
The main goal of this project is to help you to use our USB relay boards easily and without any specific knowledge how do they work. This tool is actually shell for all our USB relay boards and it does not matter which is the relay board, the command is the same. Just type one command and the the tool will set, get relay status or even will take temperature value from the board sensor (if any). It can be integrated in other software and you don't need to know much about how the USB relay board protocol. With this tool it is like a "game" and it takes literaly minutes to create for example PHP script and control the USB relay board from smartphone browser.
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 USB relay boards from Android / iPhone mobile devices
The USB relays can be controlled from each software/platform which can run external executable files or commands in command line promt
LIST COMMAND - lists all devices connected to computer.
java -jar DenkoviRelayCommandLineTool.jar list
STATUS COMMAND - display relay(s) status(es).
java -jar DenkoviRelayCommandLineTool.jar DAE0006K 4 2 status
java -jar DenkoviRelayCommandLineTool.jar DAE0006K 4 all status
Demo video how you can control the USB 4 Channel relay board from command line, browser and tablet the same time because of our command line tool.
Denkovi Relay Manager (DRM) is multiplatform software for easy controlling all kinds of Denkovi relay boards (USB,SNMP,TCP/IP)
CAUTION! Using of Denkovi Relay Manager (DRM) Software with devices which are not manufactured by Denkovi Assembly Electronics LTD is not allowed!
The item is supported by DRM Software. DRM Software will hep you to save money for expensive software and time in programming. It allows you to switch ON/OFF your devices at particular date and time, turn ON/OFF the relays with pulses or control them via specific sequence. If you have ordered at least one of our relay boards from this list you may turn your PC in powerful automation tool.
Multiplatform software: supported by Windows/Linux (ver. 2.0)
Control up to 32 relay boards
User-friendly intuitive interface
Control mode: single and multiple setting of the relays
Single pulse with adjustable delay from the control mode (ver. 2.0)
Timer mode: create timer playlist for the relays
Weekly mode: each relay may be turned ON/OFF on each day of the week
Calendar mode: each relay may be turned ON/OFF on particular date at particular time
Pulse mode: each relay may work in pulse mode by setting duration for ON and duration for OFF. Adjustable number of pulses (ver. 2.0)
Each relay from each relay board can work independently in some of the five modes
Each relay board and each relay can be named by the user
Auto load function - the last working file is loaded when DRM is started
Auto connect function - when the relay board is disconnected DRM will keep trying to find and when this is done, the relay board will be connected again
Auto start function - DRM software starts when the OS starts (currently this is not supported by Windows 8 and Linux)
Auto set function - DRM will set the relays automatically when the relay board is connected
Possibility of DRM to starts when PC boots and continues to work from the last saved point
For more information about DRM Software, screen-shots, detailed description and download - here
DRM Software image - control mode for USB Four Channel Relay Board
Demo video with DRM Software and USB Four Channel Relay Board
Control USB Four Channel Relay Board from Android Tablet browser. The tablet access the PHP server machine to which is connected the relay board.
Here it is shown how you can control 5 USB Four Relay Boards with one notebook. It is used USB hub expander with extra power supply.
FTDI web page - here
FTDI drivers page - here
FT245RL page - here
FTDI official page with source code examples - here
FT245RL documentation - here
Programming guide for FT245RL - here
FT245RL Bit Bang Mode - here
DRM Software download - here
Command line software download - here
Please read before buy
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Usb Four(4) Relay Module,board For Home Automation: $29