Homemade Alarm System
Using PIC16F84 microcontroller, motion detector (and/or smoke detector), laser barrier and cell phone.
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how do you make it .you did not show us .comment back please
Hello
In my youtube profile, you can find a link to the website.
Do you know how I could use a prepaid phone with my existing alarm system so I don’t have to have the land-line phone?
1. You can buy a special GSM module for your alarm system.
2. Or use a cell phone with speed dial function, connect 2 wires to one of the programmed speed dial button.
Connect the wires to the contacts (Normal Open) of a small relay.
The relay coil can be connected directly to the alarm siren (12VDC), but don’t forget to connect a protection diode (ex.1N4148) in anti-parallel with the coil.
Or you can use a optoisolator, with current limiting resistor on the LED side (like in this project)
Could you possibly post a video showing how to use a prepaid phone on a standard alarm system to relieve the need for a land-line? I have a Honeywell alarm that’s monitored by Monitronics. The monitoring is $33 a month and the phone line is $25 a month. I’d rather buy a prepaid phone once and save that $25 a month.
If you have an alarm system monitored by a company:
- ask the company about the GSM module (but I think such companies doesn’t offer GSM connections, because the GSM signal can be disturbed easily; the land-line connection is much safer).
- you can’t connect a simple prepaid cell phone to a monitored system (the company will not allow this).
great set up… ive done a few w/ an omron dc supply, A/B minisight, a carlo gavazzi multi timer, and a banner laser…
damn, awesome set up, you should try to market these, you ever know?
Thanks.
You cannot sell legally any products like this, without certifications.
As you can see I make only DIY projects and I have only a single unit (the prototype) and I didn’t want to sell it
love it. seem to complicated.
lol that whould scare the shit out off me xD
Gee, that’s inconspicuous
SMART
dude this is a bad ass set up u should get a patent on it good job can u tell me the basics of electronics to get me started on some projects like these?
Google can help you a lot.
BAD ASS!!!! BAD ASS!!!!
too much time on your hands
I have built several of these using a different technique and sold them to customers no problem
@cyberelectronics nope.If phone line used then the burger cuts the pfhon line.
The all in one alarms are junk.
@peanut9357 what about mobile phone jammer
@cyberelectronics I doubt a burglar could afford it,but that alarm could be ripped off the wall and smashed.
It may look cool but wont deter burglars. Get A DOOR SENSOR AND SEPERATE THE KEYPAD FROM THE CONTROL panel.
@peanut9357 its for experimentation only.
@peanut9357 This is a demo project only