15 minutes SMS door entry alarm

Step 6 Test it now ....

After checking the wiring and preparing the text your alarm system should be ready
just mount the the magnet on the door and the set on the frame , plug the charger into mains , switch on the mobile open the message and put the mobile number...

of course it's better to mount it in casing or something ...


now it's ready !

waiting for your comments and suggestions : )

Comments

[F9(/'D1-EF]

MSA ya Mostafa keep on, and I'm sure that someday you will be a great inventor ;). Bas sa3tha mtt3allish 3alina :DD

[jules15]

PanadoL, where did you get those special tools to open the phone case?

[aussa]

Nicely done, I would recommend adding the wires to number button and adding your number to a speed dial assigned to that specific button. I made a similar thing in my car. But is triggered by the car alarm system ( in case I am away and cant hear the alarm)

[hunterbait93]

 maybe you could make an electromagnet with a concealed switch outside the door so you can turn it on and off

[TechXhacker]

You do not need the alarm to send the message. Simply remove the small green, which is the magnetic sensor, and paste on the side of the phone. The magnet will be laid at the door, and when someone opens the OK button is pressed. Only has the disadvantage that when placed in the door can only be disabled after entering the house, which creates a cost (it's expensive!). A tip: put a switch activated by key on the outside wall, using an existing passage (a conduit, for example).
Or, you can think big, and put a remote control, connected to a relay! (Not so expensive, and it is sold ready for use). But the idea was good. I had thought about it but thought it would not work.

[LittleHairyApe]

Maybe I'm missing something. How do you set the alarm? If you set up the phone as described and open the door to go to work, that will trigger the alarm, right? Then aren't you screwed? Since the alarm is a one-shot deal, then you're done right? No more alarm...Puzzled.

[PanadoL]

No.. most of mobile phones when you press send and release It's just go back again to the send mode... but this will make you receive an SMS every time you go out of the door... as I received many comments about this issue we suggested that you can just make it on a speed dial key to call you when the door is opened "instead of sending SMS" and of course that's better idea another thing that you can also answer the phone to hear what's going on... feel free to read the comments about the topic specially Macobt's comments regards

[agis68]

why not use the relays contacts connected to a 555 reset timer circuit, so now you can adjust the reaction period and the durance of the alarm signal

[LittleHairyApe]

Ok, thanks for your time. Cheers.

[Fodaro]

Isn't there some sort of chipset you can buy to send the text message? I'm just thinking that having to hack the phone and have it on all the time might be unnecessary.

[SpiderSpartan]

Doesn't this require that phone to have service too?

[not__you]

Yeah, but if you have an old prepaid phone an hour of talk time should last you the life of the alarm unless your house gets broken into on a regular basis. :)

[bkf11]

Nice, I like the simplicity and low cost. Some phones can ring a number in the phone book when you hold down a number key. That would be an alternative to sending a text and it could reset itself (when you pick up and hang up the phone call) and you can listen to what is happening too if you want. In that case even better to have a hands free kit plugged in for better microphone sensitivity. I did a similar thing to an ancient Alcatel One Touch Easy with soldering wires to the keypad but used a picaxe microcontroller to "push" several buttons to turn the phone on, dial a number via the 'hold the key down' method and then hang up after a few seconds and turn the phone off. This could notify me of an event via the ring and caller ID.

[acer5050]

Good idea, but it requires a manual reset every time its set off. and how do you disable it?

[Se7s]

Good Job