Competition bound Line Following & Obstacle Avoiding Robot

Let's Make Robots Robots
21

how you made th IR sensor

how you made th IR sensor with 9 IR pairs ? can you help me to make one ?  could you give me the diagram ?

22

Nice!

Good Job!
I really like the way it moves when looking for the line at very sharp turns! Almost like an animal. Very impressive!

23

Help

would you help me with C code ? 

email: [email protected]

thanks

24

can you please give me the code…please
email: [email protected]