LMR Prize Picker

Let's Make Robots Robots
1

This contraption was created to pick winners for the 2nd LMR Donation Drawing.

See the included video for a demonstration.

At the heart of the LMR Prize Picker is the FetaDuino from Rocket Brand Studios.

500×500

 

It also features this old WICO Command Control joystick, and a BINGO cage.

 

Of course, BINGO stands for, "Basic Integrated Number Generator, Of couse."

The BINGO cage is rotated using this nifty gear motor, which I actually bought from JAX quite a while ago.

 

When a ball is selected, rolls down this shoot and is detected using a simple photo interrupter. A photo darlington and an LED flashlight are used for the detector.

 

Behind the scenes, two custom circuit boards provide voltage regulation (on the left) and a motor driver and resistor for the photo interrupted (right). A 7.2V NiMH battery provides ample power. Some wire management could be in order.

Picks winners!

  • Control method: WICO Joystick
  • CPU: Rocket Brand Studios FetaDuino
  • Power source: 7.2V NiMH battery pack
  • Sensors / input devices: Photo interrupter using a Motorola MRD360 Photo Darlington
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/lmr-prize-picker
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Congratulations…

…On building such an awesome contraptionator.

3

B.I.N.G.O.

Andrew, this is outstanding! You ROCK!

…and I like your interpretation of B.I.N.G.O.

4

Amazingly well done,

Amazingly well done, Andrew!

I think I’ll give you and NilsB the task of saving the world or something, you appear to just be lifting what we throw at you ;D

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Had to do some last minute

Had to do some last minute tweaks to the code to keep the BINGO cage from flinging balls across the room. 

It should hardly be a chaotic nightmare at all.