ZMDI – Secure Low-Power Wireless IPv6 Modules

The ZWIR4512 enables secure low-power wireless IPv6 communication for sensors and small devices. ZMDI provides a user-programmable, royalty-free 6LoWPAN stack with mesh routing capability with the ZWIR4512.

6LoWPAN is an Internet Engineering Task Force (IETF) standard to build wireless, low-power IP-based sensor and device networks. These networks can easily be integrated into existing IT infrastructure or operate autonomously. Secure communication is provided by standard-compliant implementations of the Internet Protocol Security (IPSec) protocol suite and the Internet Key Exchange Protocol version 2 (IKEv2), which enable highly secure end-to-end communication, including over unsecure network nodes.

The module is powered by an ARM® Cortex™-M3 microcontroller and provides a rich set of GPIO and peripheral interfaces. Up to 192 kB of flash and 32 kB of RAM are available for the user application. Different low power modes are provided to save energy in battery-operated devices. The modules provide superior radio properties without the need for complicated external RF-design.

Hardware Features:

  • ARM® Cortex™-M3 32-bit microcontroller
  • Up to 192 kB flash for user applications
  • Up to 32 kB RAM for user applications
  • Unique EUI64 address
  • 2D barcode address label
  • 4 (10) channels in EU (US) mode

19 GPIOs with multiplexed peripheral functions:

  • 2 x UART, SPI, 3 x ADC, 2 x DAC, 11 x PWM, USB, CAN, I2C, 8 x Timer
  • Several 5 V tolerant I/Os available

Low current consumption:

  • 3.5 μA Standby Mode
  • 13.5 mA Receive Mode
  • 18.5 mA Transmit Mode @
  • dBm

Modulation Schemes:

  • BPSK (20 kBps EU, 40 kBps US)
  • O-QPSK (100 kBps EU, 250 kBps US)
  • Receiver sensitivity: up to -110 dBm
  • TX output power: up to 10 dBm (US Mode)
  • ETSI / FCC compliant

Firmware Features:

  • Serial command interface with built in security and over-the-air update functionality

Royalty-free library bundle for custom firmware

  • 6LoWPAN communication library with mesh routing capability
  • IPSec and IKEv2 security libraries
  • Over-the-air update library
  • Several peripheral libraries


  • Uniquely simple programmability
  • Standard-compliant security solution
  • No need for external microcontroller
  • Plug-and-Play integration into local land wide-area networks
  • No RF design required
  • Superior radio propagation

Physical Characteristics:

  • Supply voltage: 2.0 V to 3.6 V
  • Operating temperature: -20 °C to +70 °C
  • 30-pin surface-mount package: 28 mm x 16.5 mm x 3.5 mm
See also

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