Make your own GPS SMS Security Tracking System

if you are like me then you probably have a precious vehicle in my case a mole cake which you don’t want to get stolen at all cost so to let me sleep better during the night I will show you in this project video how to build a shock activated SMS GPS tracking system which will change the position of your glove vehicle when it is moved around without you knowing it let’s get started [Music] the main component of this build is a symphony 320 year development board which possesses quite a lot of useful features even 3G capability and a GPS mode to use it though we firstly need to insert a proper SIM card on the back of the board and to make our life easier it is also a good idea to insert the SIM card into an old phone beforehand in order to remove the sim lock then we can simply hook up the included GSM and GPS antenna and connect the five-fold and BMC upin to the positive terminal of a five volt power source and tigran pin to the negative terminal during the power up of the board both LEDs should light up and once the net LED starts to blink you know you did everything correctly to communicate with it I connected its STX T pin to pin 10 of an Arduino Uno the s our XD pin to pin 11 and its ground potential to the ground potential of the Arduino as the first test I use the software serial library to turn pin 10 & 11 into serial data pins and simply Directorate or receive data from them to the common serial monitor and vice versa but before uploading the code you might have noticed that I set the baud rate for the sim 53 20 year to 4800 even though it’s standard baud rate is 115200 the reason for that is that I use the Adafruit phone a library will fix example sketch set bot reg beforehand in order to changes but getting back to topic after uploading the software serial sketch we can open the serial monitor set the baud rates and both new line and carriage return and sent over the command 80 if the port replies with okay everything works fine and we can now use thousands of different 80 commands from the five hundred pages eighty command sets to tell the board what to do for the GPS location though we basically just need these two commands one after the other but keep in mind that the second commands can take quite a while to return anything useful here I’m centering the received information for obvious reasons but the first and most important part of this long line should look something like this the first number is the latitude and the secondly longitude so by converting those coordinates to a more common degrees formats we can copy them into for example Google Maps and thus see the position of the demurrer 5320 next we need to send an SMS which is also easily accomplished by entering two commands of which the second one contains the phone number of the receiver then we enter the text of the SMS and ultimately standards which appears to also work fine last but not least I wanted to utilize the 3G and email capabilities of the boards in order to send an email with the GPS coordinates but no matter what I tried they always seem to occur a server error so I had to scratch that idea but nevertheless after converting the command lines for sending SMS and receiving the GPS data into a standalone sketch by also utilizing a bit of the Adafruit phone library it was time to create a shock sensor for that I used two piezoelectric transducer after replacing its thin and fragile wires with something a bit more robust we can hook it up to no Phyllis cope in order to observe that it creates a small AC voltage with peaks of up to 500 millivolts whenever the transducer shakes and that is basically how we can detect when our vehicle moves around but the small voltage Peaks of 500 millivolts are not my controller compatible yet to solve that I used an MCP is 6:02 op-amp in a differential amplifier configuration with four resistors to each again of 34 and thus achieve output voltages of around 4 to 5 volts this output directly connects to the non inverted inputs of the other op-amp inside the IC to create a comparator to the help of a 50 kilo ohm trimmer on the inverted inputs this way we can set the sensitivity level of the system and that’s only guy to fight for the output of the comparator whenever the voltage of the piezo electric transducer is higher than the voltage of the trimmer a cable divider the output of the comparator then directly connects to pin 2 of the Arduino and will act as an interrupt to reset a timer variable that would put the Arduino into sleep modes of the no occurring shocks for 70 minutes to also save power I added the MOSFETs both pulldown resistor and gate resistor on pin 13 of the Arduino in order to turn off the sim 53:20 boards well it does not need to acquire and send the GPS location the last mandatory components for the low dropout pipe volt regulator in combination with the key switch to turn the maximum 6.5 boards of my utilised 6 volt battery into suitable 5 poles and now that the circuit was complete on a breadboard let’s try to summarize the codes after the powerup through the key switch the microcontroller enters sleep mode after a 10 second delay once the shock occurs the microcontroller wakes up resets the timer and since timer 2 was you to begin with it starts with getting the GPS crashing and sending it afterwards both timers count up to the Milly function and once fiber two reaches a time of 30 minutes it once again gets the GPS location sensors and resets its own value this counting up madness then repeats and eventually reaches the sleep modes after 70 minutes once I tested the circuits with the codes one last time I gather the required components for the circuits and connected them onto piece of purport according to my finalized schematic only difference to before was that this time I used to not mean of Romania who status LEDs and polish regulator I removed to save power and of course you can find more information to recreate this project as always in the video description once the circuit was complete I draw the 10 millimeter hole into a suitable project box secure the circuit inside it and attach the piezo electric transducer the GPS and GSM antenna and the key switch to the circuits after a small battery tests everything still functioned correctly and to around 3.1 million in sleep mode this equals a battery runtime of around 60 days with a battery capacity of 4.5 amp hours the last step was to drill an 18 millimeter hole and secure the key switch inside it as well as the project box along with the transducer to the help of double-sided tape inside my vehicle and with that being done I will never have to worry about my precious Monique anymore I hope you liked this project if so don’t forget to like share and subscribe that would be awesome stay creative and I will see you next time

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