Link to original post on /r/Subredditads : here.

WE HAVE AND ADVERTISEMENT

About a month ago, when I created this subreddit, I was looking for ways to populate the user base here. I actually invited most of you here personally via a PM when I saw your cool projects, and we have been growing actually since then (even if slowly).

Well, when I was looking for other ways to get our subreddit out there, I stumbled upon /r/Subredditads and applied for our sub to have an official reddit advertisement. AND WE GOT IT!!

Our Ad: http://i.imgur.com/QH11PsD.jpg

Here's the 99 run (I didn't have the camera on for the start): https://www.youtube.com/watch?v=skqJ1wn8O7E

And here's 0-81 run: https://www.youtube.com/watch?v=HQECgxJNN3c

(Current) code is here: http://pastebin.com/QzY2v6rJ

For people wanting to build their own: There is a webcam looking at the video stream. It takes in an image, uses colour thresholding to find the basket and ball. It then calculates the velocity of basket (in pixels/second) and predicts its location 1.5 seconds into the future, the time it takes for the ball to be thrown. It also calculates reflections off the boundaries since these are needed for the higher levels. The robot uses an arduino in serial connection to the python computer program. It is taking two serial bytes, first specifies the motor (0, 1 and 2) and the second is the angle (0-180). It sets these values and then waits for another command. All logic happens on the computer (so I didn't have to keep reuploading to the damn Arduino).

The robot uses two of these servos for driving: http://www.hobbyking.com/hobbyking/store/__27569__Turnigy_8482_TGY_50090M_Analog_Servo_MG_1_6kg_0_08sec_9g.html

One of these for lifting the "finger": http://www.hobbyking.com/hobbyking/store/__663__HXT500_Micro_Servo_0_6kg_0_08sec_6_2g.html

I can't recommend these servos enough. They are super cheap and I've found them to be very high quality.

Balsa sticks and skewers for the frame, and linear ball bearings and rods for the sliders (left over from a 3D printer): http://www.ebay.com/itm/10-pcs-Inscribed-Circle-10mm-LM10UU-Linear-Ball-Bearing-Bush-Bushing-10x19x29mm-/291293650852?hash=item43d2745fa4:g:ClIAAOSwdpxUYb6D http://www.ebay.com/itm/STAINLESS-STEEL-304-ROUND-BAR-ROD-4-5-6-7-8-10-12mm-diameter-in-many-Lengths-/121918500815?var=&hash=item1c62e8afcf:m:mGrk2svvoFfkELOTJ08e0HA

I wanted a project to do with a Raspberry Pi, but I don't really know what. I just know I don't want to waste that much money on it. Thanks for any ideas!