USB Eight Channel Relay Board for Automation - 12V

This is relay board with 8 relays RAS-12-15. It is controlled via USB protocol. The main purpouse of this relay board is to help you building projects regarding robotics and automatics. You may control differenet electrical devices like DC motors, pneumatic cylinders, lasers and so on. There is free software example. Hints for creating user application in different platforms (Visual C++, Borland C++ Builder, Visual Basic and so on) are provided. Each such board require one USB port. The more USB ports you have the more Relay boards you may connect. 

Features

• Relays: 8 x Relays RAS-12-15. Datasheet - here
• Relay specification: 12V / 30mA, 15A/24VDC (120VAC), 10A/250VAC
• PCB parameters: FR4 / 1.5mm / two layers / metalized holes / HAL / white stamp / solder mask
• Power Supply: 12 VDC
• Current consumption: 300 mA
• Chip: FT245RL. Datasheet - here
• Power led: Yes
• Relay leds: Yes
• Size: 106mm / 78mm / 16mm
• Supported by DRM Software: Yes

Advantages

• High quality
• Low cost
• Free software with many functions
• Control electrical devices according weekday/date/time
• Create timers or pulses with our software

Applications

• Home automation
• Robotics
• Alarms
• Timers
• Open doors and windows via PC
• Aquariums applications

Supply characteristics

Relay output characteristics

Phisical characteristics

Communication with the board

Each such board 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. When data is sent to the register the outputs are set. Be sure "Asynchronous Bit-Bang Mode" is selected! FTDI provides Bit-Bang Mode documentation. See here.

Caution

• When the board is connected to the PC and the PC is restarted, the relays will be toggled several times. This is because of the structure of the FTDI chip.
• There is no protection against reversed polarity! If the +12V and GND are reversed the board will be damaged!
• The board is tested with 10 meters USB cable and works fine. 

How to connect inductive loads

DRM Software 

DRM Software will hep you to save money for expensive softwares 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 one of our relay boards from this list you may turn your PC in powerful automation tool.

For more information about DRM Software, screenshots and detailed description - here

Download the last version (install package) - DRMsetup.exe

Download the last version (intstall archive) - DRMsetup.rar

List with currently supported Denkovi relay boards by DRM Software - here

USB 8 Relay Manager

This is application that allows the USB 8 relay board to be controlled from your PC. There is two modes - Manual Mode and Timer mode. You may open many USB boards and select wich one to control. There are 8 indicators representing each relay channel led from the board.

Timer Mode - can be created timer playlist with states and delays

For more information about USB 8 Relay Manager, screenshots and detailed description - here

Download the last version (install package) - USB8RelayManager.exe

Download the last version (install archive) - USB8RelayManager.rar

Denkovi JExtraPack

Denkovi JExtraPack contains 3 applications. Each of these applications are written in Java, so JVM is required. Each application can control up to 10 USB relay boards so you will need of course FTDI VCP drivers. We provide single installation file and everithing is included in it.

Manager-  allows simple and easily toggling the relays.

 

 

Timer - You can give different states, sequences and delays for each relay.

 

Alarm - each relay can be set on/off depending on the date and time.

For more information about Denkovi JExtraPack, screenshots and detailed description - here

Download the last version (install package) - DenkoviJExtraPack.exe

Download the last version (install archive) - DenkoviJExtraPack.rar

 Demo video

Demo Video - USB 8 Relay Manager and USB Eight Channel Relay Board

Demo video with DRM Software and USB Eight Channel Relay Board

Demo Video - DRM Software and 4 x USB Eight Channel Relay Boards

Useful links

• 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 - setup.exe
• USB 8 Relay Manager - USB8RelayManager.exe
• Denkovi JExtraPack - DenkoviJExtraPack.exe