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EXPERTSYSTEMSANDSOLUTIONS
48, North Street, Aranarai, Perambalur, Tamil Nadu, India.
Email ID: expertsyssol@yahoo.com,
Website: www.researchprojects.info
Phone: 9952749533,
Remote device control using Radio Frequency
The project compares the communication of control signals using radio frequency
and Infra Red Rays. The STR is ideal for short-range remote control applications
where
cost is a primary concern. The receiver module requires no external RF components
except
for the antenna. It generates virtually no emissions, making FCC and ETSI
approvals easy.
The super-regenerative design exhibits exceptional sensitivity at a very low cost. A
SAW
filter can be added to the antenna input to improve selectivity for applications that
require
robust performance. The manufacturing-friendly SIP style package and low-cost
make the
STR suitable for high volume applications.
The STR-315 uses a super-regenerative AM detector to demodulate the incoming
AM carrier. A super-regenerative detector is a gain stage with positive feedback
greater
than unity so that it oscillates.
The received signals can be decoded using a standard ST-12 decoder chip. A 89C51
micro
controller from atmel is used to generate the control signals at the transmitter side.

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Remote device control using radio frequency

  • 1. This document contains text automatically extracted from a PDF or image file. Formatting may have been lost and not all text may have been recognized. To remove this note, right-click and select "Delete table".
  • 3. 48, North Street, Aranarai, Perambalur, Tamil Nadu, India. Email ID: expertsyssol@yahoo.com, Website: www.researchprojects.info Phone: 9952749533, Remote device control using Radio Frequency The project compares the communication of control signals using radio frequency and Infra Red Rays. The STR is ideal for short-range remote control applications where cost is a primary concern. The receiver module requires no external RF components except for the antenna. It generates virtually no emissions, making FCC and ETSI approvals easy. The super-regenerative design exhibits exceptional sensitivity at a very low cost. A SAW filter can be added to the antenna input to improve selectivity for applications that require robust performance. The manufacturing-friendly SIP style package and low-cost make the STR suitable for high volume applications. The STR-315 uses a super-regenerative AM detector to demodulate the incoming AM carrier. A super-regenerative detector is a gain stage with positive feedback greater than unity so that it oscillates. The received signals can be decoded using a standard ST-12 decoder chip. A 89C51 micro controller from atmel is used to generate the control signals at the transmitter side.