16 Channel USB Relay Module
  •  16 Channel USB Relay Module
  •  16 Channel USB Relay Module
  •  16 Channel USB Relay Module
  •  16 Channel USB Relay Module

16 Channel USB Relay Module


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*Disclaimer: The images are merely illustrative.


Product Description

URMC16 16 Channel USB Relay Module is great for controlling your devices through USB without any USB protocol knowledge. This modules plugs in to your design seamless. Individual relay can be controlled by simple commands. Numato’s URMC16 16 Channel USB Relay Module provides exceptional value for money.

It has sixteen on board 12V DC relays that can switch up to 10A load.The relays are controlled by USB capable Microchip PIC Microcontroller (PIC18F65J50) and comes with built in firmware that supports simple commands to control relays and read relay status. The board, when attached to a PC/Laptop shows up as a serial port and all you need to control the board is a serial terminal application like HyperTerminal or Putty. This board can easily be controlled by writing simple serial port application in VC++, VB, VBA (Word, Excell etc), Perl, Python etc.

  • 16 on board 12V SPDT Relays.
  • 7A Maximum Switching Current.
  • 10 TTL (3.3V)Compatible GPIOs.
  • 5 Analog Input Channel(Multiplexed with GPIOs).
  • 10 Bit Analog Input Resolution.
  • USB interface with CDC support. As easy as using a serial port, no USB knowledge required.
  • 2,8mA Maximum IO Source/Sink Current(Depending on the IOs).
  • Digital circuitry can be powered from USB or external power supply.
  • Can be controlled by using standard serial console applications or custom applications.
  • No vendor specific libraries or APIs required.
  • Microchip PIC Microcontroller (PIC18F65J50).


  • Home Automation
  • Industrial Automation
  • Lighting Control
  • Garden Equipment Control
  • Test Fixtures
  • DIY and Hobby

Supporting Operating Systems

  • Windows XP and later
  • Windows 7 Embedded and later
  • Linux
  • Mac OS X
  • Android
  • or any other operating system that supports USB CDC devices.

Languages that can be used for programming

  • C/C++
  • Visual Basic (VB6, VB2008, VB2010 express and other editions)
  • Visual Basic for Applications (Microsoft Office VBA)
  • Perl
  • Python
  • JAVA
  • Android
  • Javascript(Node.js)
  • And many more…



Numato Lab USB CDC Driver
User Manual
3D Model (STEP)

Sample Code

Sample Code

Language/TechnologyIDE/CompilerTypeOSDownload link
C VCExpress2008 Command Line Windows Download
C VCExpress2010 Command Line Windows Download
Visual Basic VBExpress2008 GUI Windows Download
Visual Basic VBExpress2010 GUI Windows Download
Visual Basic Visual Basic 6 GUI Windows Download
C Visual C++ 6 Command Line Windows Download
Python Python Command Line Windows Download
Java NetBeans Command Line Any Download
C# Visual Studio 2012 GUI Windows Download
AutoHotkey AutoHotkey GUI Windows Download
VBA MS Excel 2010 GUI Windows Download
VBA MS Word 2010 GUI Windows Download
Visual Basic JustBASIC NA Windows Download
Javascript Node.js Command Line Windows Download
AutoIt AutoIt NA Windows Download
Labview Labview Simple GUI Any Download
Perl Perl Command Line Linux Download
Perl Perl Command Line Windows Download


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