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WiMOD Wireless Module for different ISM Bands

The iM240B is a compact wireless module for the globally available 2.4 GHz frequency band.

The module has superb HF performance, resulting in a link budget of approx. 104 dB. Accordingly, high ranges (> 500m) can be achieved at a data rate of 250 kbps. The quality of the radio link can be evaluated using field strength measurement (RSSI1). In addition to an IEEE 802.15.4 transceiver and a microcontroller, it features an integrated PCB antenna. Of course you can get the module with a 50Ω port for connecting an external antenna. The iM240B can be soldered directly on the target hardware just as usual SMD components.

The integration of an RF system in a new or existing product is therefore significant simplified, which reduces development time, risk and costs.

Key Features

  • Compact radio module for 2.4 GHz
  • Huge link budget (104 dB) @ 250 kbps
  • RF datarate up to 250 kbps
  • Compliant to IEEE 802.12.4
  • Received signal strength indicator (RSSI)
  • Sample applications available
  • Bootloader functionallity included
  • 2-wire interface (TWI2)*, compatible t
  • Solderable like a SMD component
  • o Philips l²C protocol
  • Integrated PCB antenna or 50Ω pad
  • RoHS conform

Application Areas

  • Building automation
  • Metering
  • Remote control
  • Telemetrie
  • ...

Technical Data

  1. Frequency range:2405 MHz to 2480MHz
  2. Operating channels:16
  3. Modulation:DSSS with O-QPSK
  4. RF output power:typ. 3 dBm (50Ω Pad)
  5. Receiver sensitivity:typ. -101 dBm @ PER3
  6. RF datarate:250 kbps
  7. RF range:up to 700 m line of sight
  8. Operating voltage:2 V to 3.6 V (typ. 3.0 V)
  9. Current consumption:typ. 20 mA (receive)typ. 22 mA (transmit @ 0 dBm)typ. 4 mA (µC active, transceiver off)typ. 1 µA (power down)
  10. Interfaces:6 general purpose IOs (analog/digital/l²C)3 digital IOs2 analog input, 1 analog referenceUART, typ. 38.4 kBaud (further on demand)2-wire Serial Interface (Philips l²C compatible)*
  11. Dimension (LxWxH):20 x 32.5 x 5 mm
  12. Operating temperature:-20°C to +70°C

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iM240B Datasheet V1.0 (570.3 KB)
WiMODDLL Spec V1.3 (167.9 KB)
WiMODHCI Spec V0.9 (356.5 KB)

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