This motor i found

[aruna1]

i found this motor when i clean my junks.i bought it long time ago and don't remember which type or ow much voltage it requires to operate (I gave 9v supply and motor started).do you think i can use this motor to robot I'm going to make.
can we use cassette motors to run wheels of robot? (i mean will they give enough power and can they be controlled[rotate in specific speed or rotate to a specific angle] using a PIC and motor driver circuit)

here I'm  attaching some photos of the motor
 

[Trumpkin]

Why do you have the tabs labeled?

[aruna1]

i dont know have done it long time ago

[Trumpkin]

You might or might not be able to use cassette motors depending on how much torque they have.

[aruna1]

well at least can i control cassette motors? i mean can i rotate them to specific angles using a motor control and a PIC?

[paulstreats]

you cant rotate them to specific angles unless you use an encoder system. Also you will need a gearing system to convert their speed into torque. Even the tape deck that you took them from will have a gearing system. If you do connect motors to a PIC then remember that you need to do it through an H-bridge.

So what you need to move motors to specific angles:

Controller such as PIC
H-Bridge
Gears
Encoder

[aruna1]

you cant rotate them to specific angles unless you use an encoder system. Also you will need a gearing system to convert their speed into torque. Even the tape deck that you took them from will have a gearing system. If you do connect motors to a PIC then remember that you need to do it through an H-bridge.

So what you need to move motors to specific angles:

Controller such as PIC
H-Bridge
Gears
Encoder

well can you point me to a proper tutorial about encoder system and gearing system?(I'm new to robot and haven't use encoders or gears before)

Thanks

[paulstreats]

Here are some guides to get you started:

http://www.societyofrobots.com/actuators_dcmotors.shtml
http://www.societyofrobots.com/schematics_dcmotorbraking.shtml
http://www.societyofrobots.com/schematics_h-bridgedes.shtml
http://www.societyofrobots.com/sensors_encoder.shtml

[ArcMan]

If you want a small motor that will rotate to specific angles, just buy a hobby servo...

Unless, of course, you're doing it for the joy of it. 

[aruna1]

Here are some guides to get you started:

http://www.societyofrobots.com/actuators_dcmotors.shtml
http://www.societyofrobots.com/schematics_dcmotorbraking.shtml
http://www.societyofrobots.com/schematics_h-bridgedes.shtml
http://www.societyofrobots.com/sensors_encoder.shtml

thanks i'll try