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This guide is intended for people who are interested in installing their own alarm system. The home security market today offers a wide range of products; from DIY alarm system for fewer prices, to encompassing and advanced systems costing more to be installed by professionals. I’m introducing a complete low cost IR security system which can be built on your own. This has more advance features and working with 100% accuracy. More suitable for home/indoor use and I’ll guide you A to Z.
3 comments:
I assembled the transmitter circuit on a project board. Tested output with a standard LED and it seems working fine. I found out bit difficult to choose IR LED’s as they have various frequency ranges. Can you please clarify what IR LED’s to suite for this?
Same issue with me :-(
Good question. You can use any IR LED within the range of 25KHz to 55KHz. Can use even a TV remote IR LED's which are more familiar in the market.
By adjusting the VR1, you can match the output frequency to the receiver’s frequency. I’ll upload the IR receiver’s schematic, applications and many more soon.
Thanks for viewing the web and please drop me an e-mail to ‘harshailiyanage@gmail.com’ for any questions regarding this.
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