The SJR 2.0 by Lasersaber

                                                    This project is a replication 
                                                   I hope you like this video

Home Security System Using Cell Phone

The project is about a home security system in which a cell phone is used as a device that will alert the owner of the house when an intruder enters the house.

The owner just have to turn on the system before leaving his house.When an intruder enters the house in the absence of the owner the owner receives a call from a registered number which is the phone number of the hacked mobile phone at his/her house.


Materials (electronic components) required

1) A Cellphone having press buttons (i used an old one which i had).

2) A 10K ohm resistor.

3) A 10K ohm potentiometer.

4) An LDR (Light Dependent Resistor) 10K ohm or A 2 legged IR sensor (IR sensors are better bcoz they are not affected by surrounding light).

5) An LM358 (Dual op-Amp) IC.

6) An Optical LASER (I used a red LASER). In case you are using IR sensors use an IR LASER.

7) wires.

How does the Circuit work.

Cell phones have switches which when pressed short the terminals (gold plated) hence a number is seen on the screen

so what i have done is put my cell phone number on speed dial on the phone i hacked and when this number is pressed for a while i get a call.

so basically what we r doing is a circuit that will short the phone terminals. when a intruder enters the house.

IC LM358 is a dual op amp.

The output of an op amp is difference of the input times the gain of the op amp. ie. it compares the 2 inputs.

NOTE: refer datasheet for ore details about the IC.

pin 2 of IC 358 is threshold a potentiometer is connected to it so it forms a voltage divider and a particular voltage is set up at pin 2 which the op amp compares with voltage at pin 3.

to pin 3 an LDR is connected it behaves in following way.

1) when light shines on LDR its resistance decreases hence a more positive voltage is set up at pin 3 which forces the output to be high.hence there is a potential difference at the terminals of the number on the cell phone.

2)when the light is cut off by the door which is opened by the intruder the LDR resistance increases hence a more negative voltage is set up at pin 3 which forces output to be low (0v).

in the equivalent op amp circuit shown Avid is approximately 0v when output is low and resistance Ro is very small hence the output is shorted to the ground thus shorting the 2 terminals of the cell phone.

Youtube Channel:http://goo.gl/1m8Rs6

Credits instructables :http://goo.gl/FJOQRf

The "Mister Fantastic" Sensor

This project involves a flex sensor, a type of sensor that senses when it is flexed, or the Mr. Fantastic of all sensors much like the laser LED is the Cyclops of sensors. It basically a resistor that puts more resistance as it is flexed. This can be useful in many different ways, such as in toys when an arm is bent, it can make a sound. Or if a shoe is flexed, LED’s turn on. The possibilities are only limited by your own imagination.

Step 1: Materials

Things You Will Need: (And where to get them.)

Arduino Uno: https://www.sparkfun.com/search/results?term=arduino+uno

9 LED’s: https://www.sparkfun.com/products/9590

Flex Sensor: https://www.sparkfun.com/products/10264

1 22K Resistor: http://www.jameco.com/1/1/28314-cf1-2w223jrc-resistor-1-2-watt-5-carbon-film-22k-ohm.html

9 33o-630 Ohm Resistors: http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_690742_-1

11 Jumper Wires: https://www.sparkfun.com/products/11026

Breadboard: https://www.sparkfun.com/products/12002

Step 2: Wiring the Flex Sensor

To start, plug a jumper wire to the analog pin 0 on the Arduino. Then plug this jumper cable behind the left side of the flex sensor on the bread-board. Then, take another jumper wire and plug it into the 5v on the Arduino. This jumper will connect behind the other side of the flex sensor on the breadboard. Next, plug in the 22k resistor behind the same analog 0 jumper wire, and plug the other end 2 spaces apart. This will be where the ground wire will be. Plug another jumper cable into the ground on the Arduino and put the other end on the same rail as the other end of the resistor not connected to the flex sensor. The wiring for the flex sensor should now be done. Up next, the wiring for the LEDs!

Step 3: Wiring the LED's

On the opposite side of the breadboard, line up LED’s in a horizontal row, with the positive leg (longer leg) leading to the left. Then, plug in jumper cables from the 12, 11, 10, 9, 8, 7, 6, and 5 pins on the Arduino to the negative leg (shorter leg) on the Arduino. Following this, plug in those 330ohm resistors into the same rail as the long leg of the LEDs, while putting the other leg into the negative rail of the Arduino. The wiring for this project should be finished as of now. The end result should be that the flex sensor shuts off the LED's depending on the amount of flex used.

Step 4: Sample Code

The sample code for the project. Feel free to adjust, use it, or do whatever you want with it to fit your needs.

Link:http://www.mediafire.com/view/qqzk4aceyebhtv7/The_Mister_Fantastic_Sensor.txt

Instructables:http://www.instructables.com/id/The-The-Mister-Fantastic-LED/

DIY tilt switch

In this instructable I'll show you how to make a simple tilt switch, this tilt switch works best with microcontrollers that can debounce the signal and overcome interferences produced by vibrations.

Pros:

-Tiny.

-Easy to make.

-Extremely cheap.

-Perfect for small projects with microcontrollers.

Cons:

-Vulnerable to vibrations.

-Not really suitable for 3d motion (might activate at different angles depending on how it's placed).

-Quite exposed to the elements, might not have a very long life under tough conditions.

Materials:

• Shrink tube (5mm - 3/16inches Ø).
• Bearing ball ( 3mm Ø) (or many of a smaller size).
• Male pin strip.

Step 1:

Bend the pins until the ball fits nicely between them, this will prevent unstable connections, don't bend them too much, just the right angle so the pins fit inside the shrink tube. 

You can also use 2 pairs or pins and make a bi directional tilt switch.

Step 2:

Cut about 2cm (0,8 inches) of shrink tube and place the pins inside it, leave about 1mm of separation between the end of the shrink tube and the black plastic that holds the pins, then proceed to heat that part until the tube contracts and can hold the piece by itself, be careful when you heat the part near the long pins, too much heat applied near the end of the pins and the gap won't be enough for the ball to touch them, try to heat only near the base. 

Step 3:

Add the ball, if you want more stable connections you can try to put many balls with a smaller diameter.

Close the end by heating the tube, if you want to close it completely you can heat it and melt the end pressing it with pliers.

If all has gone right you should have a functional tilt switch.

This is not my project i found this in the instructables go and check this guy he has some nice project:http://www.instructables.com/id/DIY-tilt-switch/

High power LED slide projector for old camera lenses

Ok so this is not my project this i discovered on instructables and thought to share it with you soo letss get to it !

If you have old camera lenses, a macro bellows and a high power LED flashlight, you can use those to build a battery powered projector.

Depending on lens and light it can be very powerful.

Step 1: Prepare the bellows

You will be cutting slits into the bellows in order to position the 35mm film just where it would be in a camera or slide projector.

In order to do that, just extend the bellows halfway and measure a distance of 44mm from the lens flange. This should be within +/-3mm to the exact flange focal distance of your lens (you can adjust it with the bellows)

Now make two incisions to the left and right side of the bellows, and insert the 35 mm film.
Just be careful to make them horizontally centered, symetrical, and not too wide.

Insert the 35mm film with the image bottom-up.

Step 2: Attach the flashlight

You will have to find some way to attach your flashlight.

I used M42 extension tubes and gaffer tape, you might find another solution. Whatever works :)

Step 3: Start projecting

Congratulations! You should have a working projector.

Instructables link:http://goo.gl/VZfYnx

How to clean the image sensor on a Samsung ST72 Model

Op-amp based PWM genarator

Ok so 555 are the comon used in pwm generator but in my country they do not sell them and i wont to have a pwm generator so i just found somthing on the internet that you could use op-amp as pwm generator i found the circuit buld it up but i wouldnt go to that specified frequency that i woned so after some mods i make to it.
Now it goes up to 55khz and down to 10khz so not so bad for me . And the good thing about this one is that it hase audio modulation.

Step 1: Parts

You are going to need these parts


1:Soldering iron
2:Solder
3:Soldering skills(not so much)
4:perfboard
5:Tl072 op-amp
6:Some resistors
2x100k , 2x10k , 1x1k
7:2 Capacitor
1x1nf , 1x470nf(this is for audio modulation)
8:2x 10k Potentiometer

Step 2: Getting evry thing setup

So this circuit dosent have so much component to solder so it is not so hard and probaly you could make this for 15 minutes.You just have to follow that circuit and you should do evry thing good.

Step 3: Finally

                                                   

Finally you should get these reading and it should work ride away if you had your mind on it if not try find what hase gone wrong.If you wont to run something that does require much more than 100ma than you should put a mosfet

Step 4: Projecs

OK i like high votage and of course i had to try the flyback first and i makes so much corona and at 12V make a great spark.You can use this type of circuit in any project form pwm dc moter controller to dc to dc converters

Hack a webcam and turnit into a security camera

So i was worried about my house at the night and i dint had the 200$ for a cctv security camera install.I had a camera(a very good one with 10x zoom:D),100M of cat 5 cabel (wich i only used 30 M beacus i have the usb over cat 5 in 30M max),usb over cat 5 30M max,So lets get to work :)


Step 1: Cat 5 cabel,Usb over cat 5, Tools

So the cat 5 cabel wasnt that hard to get you can get it from any store that sell electronic or you can get it from ebay.I got my from a store for only 30 cent a meter.And the usb over cat 5 you can get from ebay or a electronic store but i dont know if they sell these in stores so yeah i got my from ebay for 5 $ (really cheap) you can get a much more longer one but that will cost you much more.Ok so the tools you will need are all in the picture you wont need necessary all but it good to hove sometimes much more :P

Step 2: Putting evrything together
Now this par is fairly easy you just have to conect the cat 5 cabel to the usb over utp extender and
conect it to the pc that all.


Step 3: The recording softwear

Now that you got evrything setup and ready to go you will need a softwear to recorde what you camera see and i used Windows Movie Maker but if you wont to use somthing else there are thousand of softwear but with movie maker it easy and you can capture images from the video.So yeah now that you are ready put the camera in a nice hiden place and hit the recorde but on movie maker ;)

Step 4: Somthing extra

Oright so you wana get a littl bit bigger with you camera and wan make a night vision one you can get IR Led Ring from Ebay,Amazon.Or you can make one your self get a protoboard and get some 10mm IR Led and make a your self IR Led ring wich can have a wide range and self made project are better than to buy one lol.


Sorry for the bad English but i live in Albania and i am not that good with English but for evry thing that i have done bad pls leav a comment.

ICStation ATMEGA328 UNO V3.0 R3 Compatible Arduino UNO R3 Board

Today i am presenting you the best Compatible Arduino UNO R3 Board that exist in the market and it is from IC Station one of the world leading electronic traders in the world.
Youtube Review: http://goo.gl/9A6DYv
Use this code for 10% of :  isadics

ICStation ATMEGA328 UNO V3.0 R3 Board Compatible Arduino UNO R3 + Free USB Cable Microcontroller:ATmega328 Operating Voltage:5V Input Voltage (recommended):7-12V Input Voltage (limits):6-20V Digital I/O Pins:14 (of which 6 provide PWM output) Analog Input Pins:6 DC Current per I/O Pin:40 mA DC Current for 3.3V Pin:50 mA Flash Memory:32 KB (ATmega328) of which 0.5 KB used by bootloader SRAM:2 KB (ATmega328) EEPROM:1 KB (ATmega328) Clock Speed:16 MHz Compatible Arduino UNO R3 Board Link: http://goo.gl/5IlWEA

Arduino Uno R3 3x3x3x Led cube

Hi all

Today you are seeing a 3x3x3 led cube that i made some days ago

its really nice and you can see in the video 3 differnt codes i will link them down below
nothing to say much more here.

Code 1

http://adf.ly/qvxEG

Is in notepad

Code 2

http://adf.ly/qvxDj

Is in notepad

Code 3

http://adf.ly/qvxCK

Is in sketch