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Arduino intruder alarm modification

We have a professionally installed burglar alarm system that dials out (over a dedicated landline) to a monitoring station when an intrusion is detected.  I'd like to modify it to send us an SMS (via the mobile phone network) and/or email (via wi-fi on a different landline) as well, just in case the phone line is cut, and to make sure we get notified immediately - the monitoring station tries to call on the landline first, then it calls our keyholders and the police, which all takes time.  If I'm 5 minutes away and the alarm is triggered, I'd like to know straight away so I can rush home. The alarm company have quoted a huge sum to make this change, because an updated control control panel would be needed to deal with the texting/emailing.  I can't go cutting into their system or it will invalidate the maintenance contract, so I need to pick up when the alarm is triggered without any physical connection.  Short of remotely detecting a current in the cable to the siren (a 12V DC signal, so how would I detect that?) it occurs to me that using Arduino to listen for the siren might be the best bet.  But I'm an Arduino beginner and I have no idea whether it would be better/easier to detect a noise over a certain threshold - the siren is very loud, but the noise from the adjacent road can be pretty loud too - or to try and detect the particular sound frequency of the siren.  All suggestions gratefully received. 

Topic by Yorkshire Lass    |  last reply


Arduino Outdoor Security System - PIR Motion Sensor, Security Lights, Intruder Warning/Alarm & Blynk Notification

I would like to ask your suggestions on how to build an outdoor ESP2866 security and sensors combo. I have seen separate postings on PIR and lights around the site and in other websites so I thought it would be doable. I knew Arduino then but only paid close attention when I realized that my x-10s are outmoded but z-wave devices are expensive. So I am learning about it, how to sketch and trying to understand C++ more. My dream is to build an outdoor ESP2866 combo, powered by an AC120v-5v module, with two PIR motion sensors, three 120v relay switches (two relays for two sets of security floodlights and one relay for an amp/wave speaker with mic), a photo (dusk/dawn) sensor and temperature/humidity sensor (for a future thermostat). Operationally, I imagine that it could be armed and disarmed through Blynk. When armed at daytime, a motion will trigger a low volume intruder MP3 warning alert with 10 minutes of security lights at night. But if the trigger persists for more than 5 minutes, the security floodlights will blink, a loud intruder alarm will sound and push phone notifications. What will be the best way to sketch these? What is the better way of wiring them together? How could I make multiple ESP2866s in the same WAN work together for an event? The desired function is if an alarm event is triggered in one of the ESP2866 that would also set off blinking lights and alarm sounds in the other ESPs. Thanks for all your help.

Topic by EeA2    |  last reply


How do I make a trip wire?

How do I make a trip wire? Additionally, how do i set up the trip wire to alert me from a remote location so that the intruder will not be alerted but I will 

Question by puregoldner    |  last reply


Infrared Beam Burglar Alarm

Could someone please tell or show me a fairly inexpensive way to throw an infrared beam across my office and once it's tripped by an intruder an outside alarm or siren (I mean the loud ones-like you can hear several blocks away)would go off. I'm so impressed by the quality of minds on this website. I know someone can probably help. Bless You All.Thank You So Far!

Topic by ropor    |  last reply


Does any one know how to rig a reed switch to a bluetooth device to notify you if someone has opened a door or not?

Im looking to see if anyone knows a way to rig a bluetooth usb drive or something to a reed switch to automatically connect to your cellphone when the reed switch is activated?

Question by JoshRidlon    |  last reply


Best Quick Security 1Day to 3Day to raise a T-mobil System..

After my daughter's home robbery only one member tried to help and now it is a bit too late..The co$tly $ecurity company got the in$tall $tarted and then (annoying) I could not even delete this comment...

Topic by iceng    |  last reply


Problems with troughbeam sensor with Arduino

Hello everybody . I`m building burglar alarm with sms alert with ir throughbeam sensors I have a problem with the code gsm modem sending sms even when the throughbeam is not broken Can please anyone help me with this code: #include "SIM900.h" #include #include "sms.h" #include SMSGSM sms; String smsText = "INTRUDER "; boolean started = true; char sms_text[160]; int ledPin = 13; int SENSORPin = 4; int val = HIGH; #define SENSORPIN 4 // variables will change: int sensorState = 0, lastState=0; void setup() {   pinMode (ledPin, OUTPUT);    pinMode(SENSORPIN, INPUT);       digitalWrite(SENSORPIN, HIGH); // turn on the pullup   Serial.begin(9600);   if (gsm.begin(9600))   {     Serial.println("\nstatus=READY");     started = true;   }   else     Serial.println("\nstatus=IDLE"); } void loop () {   val = digitalRead(SENSORPin);   digitalWrite(ledPin, val);   if (val == 1)   {     Serial.println();     smsText = smsText;     smsText.toCharArray(sms_text, 160);     sms.SendSMS("0701548869", sms_text);     String smsText = "intruder ";    for(;;){ /*empty*/ }   } } Can anybody plz help me

Topic by rapsbagge    |  last reply


How do i go about charging a small lead acid battery (7Ah)? is this method ok? Answered

Regarding charging a sealed lead acid battery, can i just apply a 12v wall wart at an amperage around a tenth of the rated Ah? i.e. 12v 700mA for a 7Ah battery (for what, 10hours?) in context i'm looking at making some computer speakers (2.1) portable with a battery such as: http://cgi.ebay.co.uk/YUASA-fire-intruder-alarm-battery-12v-7Ah-lead-acid_W0QQitemZ290422260055QQcmdZViewItemQQptZUK_AudioElectronicsVideo_Video_TelevisionSetTopBoxes?hash=item439e840157i know these may not be suitable for deep cycle charging/draining, does this use count? and will i be damaging it with 12V constant even if i take off charge once i have worked out the time to charge it for? (dividing the amp-hours by the amp rating of the wall charger gives the number of hours right?) any help possible would be great, i want to get this project rolling and of course ill post it up here!?

Question by jamesjamesjames    |  last reply


Sense when garage door is open. Light/LED light turns on?

Hi there, I have an automatic garage. But sometimes i forget to close it and it stays open all night. Apart from someone being able to steal stuff, it would also allow an intruder into the house while we are asleep! So what I am looking to do is whenever the door is open, that a light inside the house turns on. My garage door is a panel lift door. My initial thought was to use alarm sensors. One on the wall and one on the door. If the sensors are not near each other, a light in the house should turn on. The serial circuit would look something like the following. GarageDoor > GarageDoorSensor > Less than an inch of air/space > WallFixedSensor > Wire > CentralLogicDeviceWithBattery > Wire > TinyLight/Led. The hardest bit would be what I have called the CentralLogicDeviceWithBattery. I would like to know what parts i would need and which part connects to which part. thank you

Question by valamas    |  last reply


New 'ibles

Decided it would be a good idea to offer both sides of the discussion to the lockpick group. I'm hoping (fingers crossed here) that the community is capable of handling this entire group intelligently and maturely. As such, I figure pros and hobbyists alike can benefit not only from the opening and bypassing methods, but from more information about what's being done to prevent such things. All the information here is for educational purposes, and it helps me in my line of work to see what non-commercial solutions there may be. Also, with the shared knowledge here, it's possible we can come up with even better security options. Afterall, part of the job is getting in, another big part is keeping others out. *In my own opinion, the best security option anyone has is to install a decent security system. That way, even when the physical locks fail (I refuse to believe there is a lock that cannot be picked or bypassed), there is still an added security. Besides that, even having the alarm company's sign in your yard/window really is enough to deter most would-be intruders* So, feel free to post methods for getting in, or keeping others out.

Topic by BorisTheSpider    |  last reply


Create Scholarship Entry: Hearing Impaired

My project is designed to solve a personal problem. One I'm sure others struggle with. I am hard of hearing.My proposed project is for the iRobot to find me and tell me, via an LCD screen or similar visual, that the phone or doorbell is ringing. In order to keep the search path short, to start, in my house I'm thinking about using either virtual wall, which I can't afford, or a line down the hallway to the bed. When something is out of focus you can frequently stare at it until it comes into focus or you can ask someone what the sign says. With hearing loss you eventually realize you don't know you didn't hear something because people start yelling at you for ignoring them. Sound is fleeting. Usually only lasts a fraction of a second. I hear less that half of what most people hear. Without my hearing aids I can only hear the noisiest birds if they are about 20 feet or less from me. I can only hear my phone ring if I am within 15 feet of it and I have the volume all the way up. To talk on the phone, I have one that is relatively new and have the volume all the way up. Those 90db alarms, I need to be within 5 feet of them to hear them. The smoke alarm in the kitchen, I can hear it but it isn't going to wake me. A fire in the kitchen isn't going to trigger the alarm in the bedroom soon enough. It probably won't be loud enough to wake me, anyway.My house didn't have a doorbell when I moved in and I can't hear someone knock unless I have my hearing aids on and am within 10 feet of the door. After missing numerous UPS deliveries I installed a wireless doorbell and I carry the receiver, pager style, with me all day when I am expecting a delivery. And I have even missed UPS with that. If the water is running, the TV or radio is on, it is even more likely that I will not hear the phone or doorbell. If I'm in the bathroom even with the door open I don't have any idea what is happening on the other side of the doorway.A security system with cameras and sensors and a DVR would be ideal. But not in my budget. It might help me with my thieving neighbors.I have thought about getting a dog to help me but I have three rabbits and cannot afford another pet on my disability income. That would probably be a good solution. I own my own home, ok the bank owns it and lets me live here, but if I have to move into a rental most landlords do not allow pets. A robot would not be an issue.If I had a robot that could find me and let me know what is going on in my house it would be very useful. People do not wear hearing aids to bed. I don't usually wear my hearing aids at home to save on batteries. And because the feedback drives me crazy. I just turn the TV or radio up REALLY, REALLY LOUD. Sorry neighbors, it's not my intent to be annoying.I custom built the computer I am using. I have some experience programming simple robots such as the Parallax Boe-Bot. Most recently I built the miniPOV and mintyBoost from AdaFruit. I have 6 years experience as UNIX sysadmin and configuration management. I also have basic hardware and soldering experience. If I have enough time I would like to have it bring me the phone and have a microphone and speaker to talk to the person at the door. I would definitely like to add smoke and co2 detection but I noticed there are quite a few people taking that on and so I will leave that to the end. Maybe teach it to do a little dance, sing a little song, get down tonite. I could wrap it in mirrors, turn it into a floor disco ball. A different dance and sounds for each alert.A robot that could notify me of doorbell and phone events would make my life easier. I'd be inclined to sleep with it. If it could help clean up after the rabbits and ride herd on them I might worship it. Rosie the Robot, Rabbit Wrangler and goddess. If it could also keep me safe from intruders, fires, gas leaks and such. Heck I'll bear it's child! Shall I name it Proteus? or Alfred? Have you ever seen the movie Demon Seed? Classic.I took my time writing up my proposal to do some research and make sure I have the necessary skills and resources to accomplish this task. They warned us in the challenge. I also wanted to have something unique, although there can be many approaches to solving the same problem. If I do win one of the scholarships I will be interested in your suggestions about how to solve this project.

Topic by SacTownSue    |  last reply