WiMOD - iM860A

Description:

iM860AThe iM860A is a compact narrowband radio module for the 868 MHz frequency band.

Based on the high sensitivity of the transceiver of up to -118 dBm the iM860A allows narrowband applications where high ranges – in particular in buildings – are demanded.

Besides the transceiver and a microcontroller the iM860A has an integrated PCB antenna and can be soldered directly on the target hardware just as usual smd-components. Of course you can get the module with a 50 ohm port for connecting an external antenna.

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

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Documents

Software

Key features:

  • Radio module for the 868 MHz frequency band
  • Excellent link budget (typ. 128 dBm) for high ranges
  • RF data rate 1 kbps to 14.4 kbps
  • Supports RSSI1 for evaluation of the radio link
  • Integrated forward error correction (FEC)
  • UART and SPI interface (SPI only on demand)
  • 2-Wire Serial Interface*, compatible to Philips I˛C protocol
  • Available software for established applications
  • bootloader functionallity for firmware updates
  • Small footprint, solderable as SMD component
  • Integrated PCB antenna or 50 Ω connection pad
  • RoHS conform


Application areas:

  • Building automation 
  • Metering
  • Locking and access systems
  • Battery driven sensor-and-actuator-systems
  • Rremote control
  • ...


Embedded Software:

We also provide software to control the wireless communication and permit the implementation of common use cases. The UART interface connects to a host system via host controller interface (HCI) and allows simple configuration of the wireless and application parameters. Software updates are also made via UART interface using a bootloader already integrated into the module. We offer customizing to special requirements as a service.

WiMOD firmware - standard applications (AppStarterKit):

  • Chat – bi-directional data transfer between two or more modules
  • Radio Link Test – qualitative assessment of the radio link between two modules
  • Remote Control – remote switching of outputs at the remote module
  • Sensor Control – sensor data transmission between two or more modules


For a fast start-up a Starter Kit is available, with which the functions
and the range of application of the WiMOD module can be evaluated.

Technical data:

Frequency range: 863 MHz to 870 MHz
Modulation: 2-FSK
RF output power: typ. 10 dBm (50Ω Pad)
Receiver sensitivity: typ. -118 dBm @ 1 % PER3 & 1 kbps (with FEC)
RF datarate: 1 kbps to 14.4 kbps
RF range: up to 2000 m (LOS, external antenna)
Operating voltage: 2.7 V to 3.6 V (typ. 3.0 V)
Current consumption:
 typ. 26 mA (receive)
typ. 23 mA (transmit @ 0 dBm)
typ. 40 mA (transmit @ 10 dBm)
typ. 3 mA (ľC active, transceiver off)
typ. 1 ľA (power down)
Interfaces: 2 general purpose IOs (analog/digital)
12 digital IOs

 UART (typ. 38.4 kBaud, other rates on request)
 SPI-Master or SPI-slave (available on request)
TWI2*, compatible to Philips I˛C protocol*
Dimension (LxWxH): 20 x 32.5 x 5 mm
Operating temperature: -15°C to +50°C
Certification: Prequalified according to ETSI EN 300 220

Subject to change without notice.

 

1 RSSI = Received Signal Strength Indicator
2 TWI = 2-Wire-Interface
3 PER = Packet-Error-Rate; packet size = 20 Byte

* This functionality is not part of the standard firmware and only available on demand.
The iM860A is a compact narrowband radio module for the 868 MHz frequency band.Based on the high sensitivity of the transceiver of up to -118 dBm the iM860A allows narrowband applications where high ranges – in particular in buildings – are demanded.
Frequency: 868 MHz
Range: up to 2000 m
RF datarate: 1 kbps - 14.4 kbps
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