The creation of such a complex device seems, at first glance, almost impossible. However, if you show ingenuity, then it is quite possible to create a robot from improvised means and at home.
Necessary
- - computer mouse (ballpoint, not optical);
- - audio cassette;
- - Light-emitting diode;
- - electrolytic capacitor;
- - battery;
- - floppy disk;
- - transistor;
- - resistor;
- - electric motor;
- - switch.
Instructions
Step 1
First, disassemble the mouse and remove all existing parts and elements from it: the plastic case should remain completely empty. Only two parts should be removed from the microcircuit, namely: transparent white with metal connectors and plastic black. Please note that the first part is at the plastic gear and the second is at the cable exit, on the right. This microcircuit is no longer useful to you, you can throw it away.
Step 2
Now take the cassette tape. In it you will need small spools on which the magnetic tape is wound. They will be designed for the wheels of the future robot. Take them out of the cassette and turn them into tires: just wrap each wheel with a strip of rubber pre-lubricated with glue.
Step 3
The next required part is DPDT 5V. It is necessary to solder wires to it: to the orange contact - the orange wire, and to the yellow one - the blue one. Then attach another part to it - 2N3904. Take the plastic black piece removed from the mouse case, electrolytic capacitor and resistor and solder them all together.
Step 4
It is necessary to cut holes in the side walls of the computer mouse and glue the electric motors there. Remember that both rubber tires must be fitted to the motor axles. Next, drill three more holes, this time in the upper part of the case, that is, where the buttons were previously located. In addition, one hole is also needed from the back of the case.
Step 5
Solder the two transparent parts that you removed from the microcircuit to the wires, and the resistor to the LED installed in the middle hole in the front of the mouse. Next, you need to connect the two previously soldered sensors with the LED, and insert the switch into the back wall of the case.
Step 6
Connect the battery and the switch, as well as the LED and sensors, and then connect the lower part of the case to the upper one, be sure to solder them. To the front, you can glue a piece of plastic from a floppy disk, thereby depicting a bumper. Now try turning on the robot and testing it.
