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LPRS has been selected by MRI Services to provide wireless communications for wheelchair users.

The design inspiration was to provide a flexible personal communication system for a cerebral palsy sufferer.

The wheelchair communication system is comprised of a transmitter located on the wheelchair.

This sends the output of the Pathfinder synthesiser to a receiver connected into a laptop computer, through which Skype communication is carried out.

The incoming messages are transmitted from a second transmitter fitted to the laptop and are then sent to the receiver unit on the wheelchair, to which headphones are connected.

There is a mixer in the laptop unit that enables the user to hear what they are sending out, as well as what is received.

The synthesiser can produce output in speech for normal conversations, or muted for private communication or writing.

Typical applications for Circuit Design’s wireless modules include industrial monitoring and control systems, alarm and security systems, and communications systems.

Low Power Radio Solutions

LPRS Ltd (Low Power Radio Solutions) is a privately owned ISM band
‘easy-Radio’ radio module manufacturer and distributor of Circuit Design,
Prowave and Airwave transmitters, receivers, transceivers and antennas.
Their sales team is based in Witney, Oxfordshire where as their Technical
Centre is in Warrington, Cheshire.

easy-Radio comes in transmitter, receiver and transceiver modules and as a
pendant transmitter. Operating frequency for the modules is either
433-434MHz (ER400 series) or 868-870MHz for Europe and 902-928MHz for USA
(ER900 series). As they’re based on the Chipcon’s RF ICs, the modules also
provide user-programmable features including frequency of operation, power
output and data rate.

The easy-Radio (ER) ERx00TS transmitter, Erx00RS receiver and Erx00TRS
transceiver incorporate ‘easy-Radio’ technology to provide high performance,
simple to use radio devices that can transfer data over a range of up to 250
metres Line Of Sight (LOS). Furthermore ‘easy-Radio’ technology allows
frequency, data rate and power output to be optimised for customer specific
applications. The embedded software reduces design and development time


Handheld Terminals.
Environmental Sense & Control.
Vehicle to Base Station Data Transfer.
Remote Data Acquisition.
Electronic Point of Sale Equipment etc.
M2M Control

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