Components Active Components Radio Modules Metering

Metis-I & EV-Kits

Radio Module 868 MHz wM-BUS (AMB8426-M)

Metis-I & EV-Kits

Characteristics

  • Low-cost radio module 868 MHz
  • Wireless M-BUS EN13757-4:2013 standard
  • OMS (Open Metering System) supported
  • Range up to 700 m line of sight
  • Small size: 17 x 27 x 4.0 mm
  • Low-power functions (Wake-On-Radio)
  • Easy switching between operating modes S, T, C
  • Adjustable RF data rates
  • Communication via UART/SPI Interface
  • Encryption AES-128
  • Available on Tape & Reel for SMT mounting
  • AMB8465-M Wireless M-BUS USB Adapter available
  • Pin-to-pin compatible with Mimas-I and Metis-II
  • ACC Software - PC Tool to configure and evaluate the module
  • Wireless Connectivity SDK

Application Notes

See what the firmware developed by Würth Elektronik can do - the WE-ProWare

Products

All
Metis-I
EV-Kits
USB radio stick
Reset all
Filter article data
Filter by
Delete all
 show   article  in  3 product lines
 article  in  3 product lines
Reset all
Order Code
Data­sheet
Simu­lation
Man­ual
Downloads
Status
Description
Frequency Range (MHz)
dLoS (m)
PTx, e.r.p. (dBm)
Rxsens, e.r.p. (dBm)
PTx, 50 Ω (dBm)
Rxsens, 50 Ω (dBm)
VDD min. (V)
VDD max. (V)
Rb max. (kbps)
L (mm)
W (mm)
H (mm)
Radio Module
USB Radio Stick
Evaluation Kit
Samples
2605049283001
Simu­lation –
Man­ual
Downloads –
Status Active i | Production is active. Expected lifetime: >10 years.
Description EV-Kit Metis-I 
–
–
–
–
–
–
–
–
–
–
–
–
Radio Module
2605041183000
USB Radio Stick –
Evaluation Kit –
2605041183000
Metis-I, 868.3 - 869.525, 700 m
Simu­lation
Man­ual
Downloads 5 files

EDA models: Components ZIP

CAD files ZIP

Download all 5 files as zip archive
ZIP

Status Active i | Production is active. Expected lifetime: >10 years.
Description Metis-I 
Frequency Range 868.3 - 869.525
Line of Sight Range 700 m
–
–
Output Power 50 Ohm 11 dBm
RX sensitivity max. -103 dBm
Operating Supply Voltage Min. 2.2 V
Operating Supply Voltage Max. 3.6 V
RF Bitrate max. 100 kbps
Length 17 mm
Width 27 mm
Height 3.6 mm
Radio Module –
USB Radio Stick
2605056083001
Evaluation Kit
2605049283001
2605056083001
Metis-I USB radio stick, 868.3 - 869.525, 100 m
Simu­lation
Man­ual
Downloads 3 files

EDA models: Components ZIP

CAD files ZIP

Download all 3 files as zip archive
ZIP

Status Active i | Production is active. Expected lifetime: >10 years.
Description Metis-I USB radio stick 
Frequency Range 868.3 - 869.525
Line of Sight Range 100 m
Output Power e.r.p. 11 dBm
RX sensitivity e.r.p. -93 dBm
–
–
–
–
RF Bitrate max. 100 kbps
Length 67.75 mm
Width 23.65 mm
Height 12 mm
Radio Module
2605041183000
USB Radio Stick –
Evaluation Kit –

Download now free of charge

Software downloads

IoT becomes intelligent when hardware and software work together harmoniously!

The aim of the Wireless Connectivity Software Development Kit (SDK) is to minimize the effort required on customer side to enable his host MCU to communicate with Würth Elektronik eiSos radio modules. It contains the implementation of all available commands in pure C-code. In order to integrate any Würth Elektronik eiSos wireless module, the user has to simply port the corresponding C-code to his host processor. This significantly reduces the time needed for developing the software interface to the radio module.

Download now

The "ACC V3" is a tool to update and configure certain Würth Elektronik eiSos modules. The supported features will include the search and upload of new firmwares as well as the modification of the available configuration parameters. It allows full user control over all supported products, as in the range of the producer’s intentions, always referring to the respective manual of the connected module.

Due to current export legal restrictions, we are required to control the provision of software. To download the software, please contact our technical support or your local sales representative directly. Thank you for your understanding.

Wireless M-Bus

Wireless M-Bus

Wireless Meter Bus (wM-BUS) is the extension of the meter Bus (M-BUS) with a wireless protocol and role scheme for handling communication over a standardized wireless communication interface between meters and data loggers – so called smart meter gateways (SMGW). This scheme is specified by the European standard EN 13757 and its sub-standards. The motivation of this standard is to allow an automated measuring and processing of data, track the usage of resources and to optimize provisioning in order to create an “Advanced Metering Infrastructure” (AMI).

Such Smart grid / meter devices are typically battery operated and in need for a long range and robust wireless communication. This is the reason for using the Sub GHz frequencies in the free ISM Bands. EN13757-4 is specifying radio options in the 169 MHz, 434 MHz or 868 MHz band, regarding to the region.

Wireless M-Bus

User Application

Time saving
No personal contact needed
Autonomous
Measuring possible at any time
Smart metering: Measure and control

Advantages for the Customers

  • „Almost live“ data access on his currently use of resources including a “live” cost estimation instead of yearly billing 
  • Comparison on a day-by-day basis when data is available  
  • No costs for the manual readout, no huddle with a yearly appointment for manual meter readout person  
  • Secure due to encryption, only the owner of the data knows the key required for decrypting the messages of the meters  
  • Several metering providers can share a single Smart meter Gateway (water, gas, electricity, heat cost, …)

Disadvantages for the Customers

  • High initial costs: Smart meter gateway and meters with wireless interface
  • Battery lifetime requires exchanging devices each 7 - 10 years in case of battery operated devices – due to security reasons “just” changing the battery is often prevented

Antenna

WE-MCA Antennas

Videos

Manni Talks- Unboxing the Evaluation Kit

Learn more