Below is the list of parts needed to build the robot.
|
Item |
Qty |
Price |
Vendor,
Part no. |
|
BC548 transistor |
4 |
0.4$ |
|
|
CdS Photoresistors |
4 |
2.99$ |
276-1657 |
|
5mm Blue Led |
4 |
1.40$ |
|
|
PC Board(Experimenters Board) |
1 |
1.50$ |
|
|
100uf 25V Electrolytic Capacitor |
1 |
0.08$ |
C100U25E |
|
270 ohm resistor |
1 |
0.10$ |
R270R14W |
|
5mm Green LED |
1 |
0.10$ |
LED5G |
|
16 pin DIP socket |
1 |
0.07$ |
ICS16 |
|
L293D |
1 |
Free Sample |
|
|
Male Header Pins |
4 |
0.17$ |
|
|
20K Preset |
4 |
0.60$ |
TRIM20K |
|
5mm Red LED |
2 |
0.16$ |
LED5R |
|
1K resistor |
2 |
0.20$ |
R001K14W |
|
1 Inch Standoff |
6 |
4.98$ |
H02171-04U |
|
100 rpm DC motor
|
2 |
23$ |
|
|
Wheels (7.5 cm diameter) |
2 |
3$ |
|
|
L-Bracket (to mount motor) |
2 |
1$ |
|
|
|
|
|
|
|
Total |
|
39.75$ |
|
I bought the motor, wheels and L-Bracket from a local store. I’m not sure if you can buy the same parts online. But similar parts are available at hobbyengineering.com
Other optional parts
|
9cm x 8cm HDPE Plastic |
1 |
4$ |
|
|
Velcro strip |
1 |
|
|
|
Old mini CD’s (instead of expensive wheels) |
2 |
<1$ |
|
|
0.22uf Ceramic Capacitor |
2 |
0.50$ |
H01032-02D |
NOTE - Please go through the complete tutorial before buying the parts.
Apart from these parts you will also need the following tools and materials, if you don’t have them you may consider buying or borrowing them-
• Soldering Iron
• Desoldering Pump(optional)
• Crimper
• Drilling machine
• A 9v battery and battery clip
• Wires
• Cardboard or wood(instead of the HDPE Plastic)