This project is good for learning the basic idea about electronics and its fun to do. The build is very easy to make and safe to use (no hazardous parts).
The idea about spy phone is that it looks like an ordinary phone. I made this instructable just for the spy contest (and have thousand ideas to come) . challenge in this project is to make everything small as possible. You can use in this project any phone you have (including mp3 players and everything that is small and mobile). The thing about the phone is that is actually a super sensitive hearing device that you can use everywhere and no one will ever know what you hear. Now if you build this, i'm not responsible for any action you use this device for.
The idea about spy phone is that it looks like an ordinary phone. I made this instructable just for the spy contest (and have thousand ideas to come) . challenge in this project is to make everything small as possible. You can use in this project any phone you have (including mp3 players and everything that is small and mobile). The thing about the phone is that is actually a super sensitive hearing device that you can use everywhere and no one will ever know what you hear. Now if you build this, i'm not responsible for any action you use this device for.
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Signing UpStep 1: This is what you will need:
obviously you will need an old phone(or new if it's not about cash) or a dummy phone. you will probably find an old phone from your own home/ ask your friends that do they have any or buy from Ebay, second hand store. You can find also a dummy phones from internet, google is your friend.
The components that you will need are:
The amplifier IC -TDA2822M
Few resistors- one about 30Kohms for the microphone and 4.7 ohms
four condenser- one 0.1 uF, one 10 uF and two 100 uF.
Battery (i used a phone battery because its small and easy to recharge on another phone. it has 3.7 volts and 600mAh so it will last. keep in mind that the amplifier needs only 1.8 volts to work and maxes out on 15 volts)
small switch
3.5mm audio jack
microphone (smallest that you can get)
and something to solder the parts to
and some wire
and tape
and
and
... i think that's all. use your imagination if needed
Tools that you will need:
sharp knife to cut the plastic if needed
Small screwdriver
Soldering iron
Ps. If you have the chance. do this project to surface-mount (i'm not sure about the right word) and use the smallest parts possible.
The components that you will need are:
The amplifier IC -TDA2822M
Few resistors- one about 30Kohms for the microphone and 4.7 ohms
four condenser- one 0.1 uF, one 10 uF and two 100 uF.
Battery (i used a phone battery because its small and easy to recharge on another phone. it has 3.7 volts and 600mAh so it will last. keep in mind that the amplifier needs only 1.8 volts to work and maxes out on 15 volts)
small switch
3.5mm audio jack
microphone (smallest that you can get)
and something to solder the parts to
and some wire
and tape
and
and
... i think that's all. use your imagination if needed
Tools that you will need:
sharp knife to cut the plastic if needed
Small screwdriver
Soldering iron
Ps. If you have the chance. do this project to surface-mount (i'm not sure about the right word) and use the smallest parts possible.
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You will need:
decent multimeter. just for measuring voltages etc. and learn that way the use of it. and has got hell lot of information in the future.
Soldering stuff. don't buy the cheapest you will find. its just pain in the ass. buy something you can change the temperature of the solderer(don't know if a real word.)
And open mind for anything
Remember. Start small and go big.
and remember also. when you get the idea of the components and the idea of electronics. its time to try programming the electronics. if you want i can send you a picture of 8-bit Attiny 2313 test and programming board (yea. you can do knight rider lights with that... so Nothing cool really ;) )
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Try to find the parts from here:
http://www.radioshack.com/category/index.jsp?categoryId=2032230
OR
Try your local electronics store.(they will be happy to help you and to make sure you get the right parts.)
This is perfect project to do with your mom or dad or with friends
Also you will need soldering iron (any kind will do) and soldering tin
the parts are:
amplifier IC -TDA2822M x1
30Kohm resistor x1 ( the ohm is the basic resistanse of the resistor)
4.7ohm resistor x1
100 uF condenser x2 (the u is micro and the F is Farad)
10 uF condenser x1
0.1 uF condenser x1(the voltages about condensers does not matter much in this kind of project. try to keep them over 16 volts)
and some breadboard
Try wikipedia for learning about Amplifier IC, resistors and condenser. They are simply to use and simply to learn. and if you learn it your self you will remember it always!
I will not make a video about this project, but maybe in the future.
Happy building
If you have any questions just ask!
make sure you pressed the vote button in the upper right corner for Spy consest ;)
But alas, I am going to vote for one of my entries. Sorry!