ISM Radio Modules Allow trouble-free implementation of wireless control functions
There are certain user applications where very simple ‘on/off’ control functions are all that are needed. Common examples, such as long-range lighting controls, alarm sounders, or machine shutdown safety systems, will normally require a microprocessor or dedicated remote control IC in addition to the radio module itself. Having to include such chips will incur extra cost, expand the system size, and increase the software overhead. This is clearly something of an irritation for engineers looking at what appear to be rather basic wireless designs, and which really shouldn’t need too much effort to implement.With
Currently this option is available in the popular LMT2 and LMR2 ISM band modules. These are a small sized (LMT: 33x23x9mm, LMR: 43x33x9mm) narrowband, multi-channel transmitter/ receiver pair. The sensitive receiver, combined with the 10mW transmitter, gives an operating range of over 500m. Only a suitable aerial, a 3.1-15v power supply, and the user's application circuits, need be added. A simple serial programming port allows channel selection (one of 32), as well as set-up of the 16 bit unit address.
These radios operate on the 433MHz band, and are EN300-220 compliant.
1st March 2013
Caravan Alarm System Controlled by LPRS Wireless Keyfob and Receiver Module
15th November 2012
ADLINK Technology Announces Latest Industrial Mobile Handheld Device
19th December 2011
Fairchild Semiconductor’s Digital Microphone Series Converts ECM Outputs to Digital PDM Data Streams, and includes Temperature Compensation
13th October 2011
Hand held terminals optimised for retail and industrial applications
27th September 2011
Toshiba Launches Wireless IC Compliant with TransferJetTM Close Proximity Wireless Transfer Technology
16th September 2011
TI introduces the industry’s smallest High-Speed USB protection device for portable applications