Embedded low power radio modem

CIRCUIT Design, a supplier of narrowband radio modules, has updated the MU-1 low power radio modem launched last year with new relay and communication margin measurement functions.

With the new relay function long distance communication (1 leg about 600m) can be achieved using a maximum of 10 relay stations, with the 10mW output authorized for the European harmonised ISM 434MHz license exempt band.

This enables a broader range of industrial applications such as data acquisition over wide areas and control of equipment placed in remote locations.

The MU-1 is a serial data communications modem designed to offer the reliability, shock resistance, vibration resistance and high quality required for use in industrial applications.

The MU-1 uses the UART serial interface to interface with the host system, while data input/output is performed with simple commands.

The new relay function is achieved by issuing these same dedicated commands from the source station. Not only can data be transmitted and received over a relay, users can also remotely set system channels from the source station.

In addition, added a new command has been added for measuring the communication margin.

For example, users can remotely check the field strength (signal level and floor noise) of target stations in remote locations with commands from the source station.

The MU-1 comes with flexible Link IDs that allow users to build 1:1, 1:N, and N:N systems so that combined with the relay function, it is possible to build anything from simple systems to complex systems optimised for a wide range of applications.

Operating at low voltage with a low consumption current, the MU-1 is ideal for battery operated applications. In addition, it has an operating temperature range from -20 to 60ºC thanks to our unique temperature compensation circuit.

Circuit Design +81 263 82 1024.

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