I/O Extender

I/O Extender

I/O Extender for TWN4 MultiTech Nano Development Board

The I/O extender is an optional expansion with additional interfaces for the TWN4 MultiTech Nano Development Board.

Both are designed to facilitate the development and testing of custom tailored apps for the versatile multi-technology dualfrequency RFID module TWN4 MultiTech Nano.

Thus pretty much any industrial scenario can be covered and the app can be tested before integrating the module into the client’s system.

Stefan Haertel

Stefan Haertel
Puchheim, Germany

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Key Facts

The I/O extender supports Omron and Wiegand for time-tracking and access control, as well as the CAN bus and RS485/RS422 interfaces, which are common for industrial applications.

It features an LC display, an I²C temperature sensor and a relay for switching peripheral devices on and off. Furthermore, there are integrated LEDs to indicate whether commands have reached the right interfaces.


  • Time attendance
  • Access control
  • Secure printing
  • EV charging stations
  • Car sharing
  • Medical equipment
  • PC log-on
  • Gaming

Elatec is a German RFID manufacturer established in 1988. Our specialty is designing and manufacturing close proximity contactless (NFC, RFID, Bluetooth) as well as contact (SmartCard) reader/writers.

  • Manufacturer of contactless proximity reader/writers
  • Manufacturer of contact SmartCard reader/writers
  • Manufacturer of RFID components – antennas, reader/writer modules
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Development Board for TWN4 MultiTech Nano