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Level Shifters - USB/RS232 to TTL Level Conversion


USB 2.0 To RS232 Adapter
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† UK Next Day Delivery

USB 2.0 To RS232 Adapter

Allows you to connect devices which use an RS232 connector to your PC or Laptop via USB and take advantage of the high speeds that USB 2.0 offers.

  • USB specification 2.0 compliant
  • RS232 serial interface DB9
  • Over 1 Mbps data transfer rate
  • Suitable PDA and Modem
  • WIN 98 /2000 / Xp Mac OS V8.6
  • Power management
  • Plug & Play
  • RoHS compliant

  • Supplied with USB extension lead and resource CD

    RS232 drivers

    Product Code: USB2RS232
    USB 2.0 to RS232 Adapter + 1m cable
    £12.99  (Inc VAT £14.94) Qty STATUS: In Stock

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    RS232 Serial Interface Module

    Our Serial Interface Board provides an easy to use, convenient communications adaptor for shifting between RS232 serial protocol and TTL logic levels.

    Bi-directional data links can be quickly established without the need of additional components or further circuit development thus speeding up application development and prototyping.

  • Input voltage: 7.0 to 20Vdc
  • Reverse Polarity Protected
  • Aux output voltage: 5 Vdc (1A max)
  • Serial Interface Module Connections
  • Interface Board Circuit Diagram (PDF)
  • DB9 Serial Cable (Optional)
  • Size: 70mm x 40mm


  • Product Code: ACT-SIB
    Serial Interface Module
    £13.89  (Inc VAT £15.97) Qty STATUS: In Stock



    USB-RS485 Convertor
    Click to enlarge

    USB-RS485 Convertor

    The USB-RS485 is a complete, self powered, USB to RS485 interface working at any baud rate up to 250k baud. It features automatic bus turn-around - any time your not transmitting the module is listening. Uses the MAX487 quarter power tranceiver, so you can have up to 128 devices on the bus.

    USB interface uses the FTDI chip which has drivers available for Windows XP64, XP, 2000, ME, 98, CE.NET V4.2, Linux, Mac OS8, OS9, OSX.


    Product Code: USB-RS485
    USB RS485
    £16.33  (Inc VAT £18.78) Qty STATUS: In Stock

    USB to I2C Convertor Click to enlarge

    USB to I2C Convertor

    The USB-I2C module is a low cost USB to I2C module, with a simple command set, and interfacing to any I2C device.

    The USB-I2C module provides a complete interface between your PC and the I2C bus. The module is self powered from the USB cable and can supply up to 70mA at 5v for external circuitry from a standard 100mA USB port.

    MORE INFORMATION & DOWNLOADS

    Product Code: USBI2C
    USB-I2C Convertor
    £16.56  (Inc VAT £19.04) Qty STATUS: In Stock

    † UK Next Day Delivery on orders received by 2pm (excluding weekends and bank holidays), for further information call our sales department on 01761 239 267 or send an email to sales@active-robots.com.

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