![]() I began the process to build an alarm system that could replace my existing alarm and would also provide increased functionality. I stumbled across an instuctable and after some experimenting determined that I could receive the signals from my existing sensors. One day while wondering what I could do to make my alarm functional again, it occurred to me to check if an Arduino could receive signals from the sensors. I am sure there are many people like me who have purchased a GSM/2G alarm system with wireless sensors and were happy with it, however when the 2G/GSM network was turned off where I live, I was left with an alarm system I could no longer program or even set the time on it. ![]() Just search for 433Mhz or 315Mhz sensors that use PT2262 or EV1527 coding. It can also be a complete new project with wireless alarm sensors, such as infrared motion detectors and reed switches, easily and cheaply available online. This project can be built in about half an hour at a cost of about $20.00 if you have existing 433Mhz or 315Mhz wireless alarm sensors. ![]() Finished alarm and examples of the wireless PIR, reed-switch and remote key fob. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |