Fresh from the tips line, [Pedro] sent in his GSM alarm. He combined a GSM phone, a motion sensor and BasicX24 controller board. If the detector trips during a set time period, the alarm sends SMS messages to the terminator, er whoever you want. He was kind enough to release the code, but I’d like to see this with a smaller micro-controller board to keep the cost/size down.
14 thoughts on “GSM Alarm”
Leave a Reply to Andrew A. SailerCancel reply
Please be kind and respectful to help make the comments section excellent. (Comment Policy)
So… not really an “alarm clock”. More like motion detector with text message alarm.
I don’t think it was meant to be alarm clock.. perhaps a typo.
You can do something like this with an AVR. See application note AVR323 for details. Not with a motion sensor but that shouldn’t be the biggest problem.
i was looking at a very similar idea for a car alarm.
smaller and cheaper… I managed to get sms control (both ways) using a pic (16f628) using fbus (not AT)
Shame you can’t automate MMS , you could use the cell phone’s camera and not have false alarms. now that’s useful!
you can automate mms and sms. which would be a better solution.
a $0.98 8 pin pic chip and a little bit of coding and this could be easily done for far cheaper.
Basic stuff here guys
You can use a smaller board like this.. http://www.wrighthobbies.net/catalog/product_info.php?cPath=21&products_id=30
cheaper chips but usually more expensive to do development wise, although maybe in another 6 months the pic world will gets it’s development stuff cheaper then the stamp
or you can choose one of these gsm projects http://www.elektronika.ba/projekti/
just wana ask if how to trigger the cell phone to send sms by means of the alarm, hope you could share me. i realy want to know. thnx
mure, ofcourse everyone can read russian!?
wow what a interesting post , its really helpful for us
and i saw this post on aol ill pop back to your site later today
not an Original idea, I designed the basic principal of this as a Shed alarm in 04, and was in recipt of several accolades from the Police and court magistrates for the arrest and conviction of the ringleader of the theives/vandals that were terrorising our allotment site for years.
I used an old Sagem phone and hardwired directly to the SEND key, and had a door microswitch as the trigger to send a text.
I`v shared this idea on as many places as I can (I didn`t know about this place until recently).
all you need is a phone that doesn`t go into stby and erase the number you have ready to send, and some simple soldering skills.
I urge Everyone to arm themselves with these in Cars, Houses, Sheds, boats… etc.
it May give these little ba$t@rds pause for thought if enough of them get caught! ;)