Hackaday.io Hackaday.io
Projects
Discover Contests Courses Stack
More
Courses Tutorials Events Hackerspaces Hackaday.com Tindie Marketplace
Sign up Log in
Close
0%
0%

Optical Bingo ball reader assembly

Two stepper motors, two cameras and the controller with two MCUs

voja-antonicVoja Antonic
Following Follow project
Liked Like project

Become a Hackaday.io member

Not a member? You should Sign up.

Already have an account? Log in.

Sign up with Github
Sign up with Twitter OR
Forgot your password?

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Join this project
Similar projects worth following
663 views
6 comments
550 followers
6 likes
  • Description
  • Details
  • Files 0
  • Components 0
  • Logs 0
  • Instructions 0
  • Discussion 6
View Gallery
663
6
550
6

Team (1)

  • voja-antonicVoja Antonic

Join this project's team
completed project
hardware
OCR bingo

This project was created on 04/30/2016 and last updated a year ago.

Description

The main mechanical part is the carousell which moves the ball to four positions: ball in, OCR camera record, public camera record and ball out. This pipeline enables the reading speed of about 1 ball per second. One low cost CMOS camera serves as OCR input device, and the another one is for public monitors, arranged in the Bingo hall.

There are two stepper motors, one of them is for carousell rotating, and the another one repositions the ball for new reading, if the OCR process was unsuccessfull.

The lighting block is equal to the one described at https://hackaday.io/project/5649-ocr-for-bingo-balls

Controller contains two PIC24E MCUs, one of them keeps the communication with the host and controls all mechanical parts, and the another one scans the camera image and executes the OCR process.

Details

Enjoy this project?

Share

Discussions

Log In/Sign up to comment

Become a Hackaday.io Member

Create an account to leave a comment. Already have an account? Log In.

Sign up with Github
Sign up with Twitter OR
Alex Rich wrote 05/20/2016 at 01:23 • point

cool! would love to see a video of this thing reading 1 bps

  Are you sure? yes | no

Voja Antonic wrote 05/20/2016 at 21:45 • point

Thanks, Alex!

The first sample was recently installed in Cyprus, and it works great. I've built two samples more (one CW and one CCW, "mirrored"), but without ADC1173. As soon as I get it from DigiKey (probably at the beginning of June), I'll make the video and place it here.
At this moment, there is only the 5 years old demo for my experimental OCR model with PIC33FJ256GP710 and without mechanical parts:

At 0:50 you can see that there is no ADC1173 on the board, obviously my fatal chip :-) So I bypassed the video signal to MCU's analog inputs and used two internal ADCs to digitize the image with 10× interleave. That's why it is so slow.

  Are you sure? yes | no

Alex Rich wrote 05/20/2016 at 22:04 • point

cool, another case made of pcbs too?

  Are you sure? yes | no

Voja Antonic wrote 05/20/2016 at 22:24 • point

Sure, the same ones as on the project photo gallery

  Are you sure? yes | no

Voja Antonic wrote 06/19/2016 at 14:18 • point

Here's the video, Alex. I've got ADCs and now it's complete.

  Are you sure? yes | no

Alex Rich wrote 06/20/2016 at 12:56 • point

Wow that's really awesome, great project Voja

  Are you sure? yes | no

Similar Projects

Conversion of a defunct analog camera into a CCD/CMOS digital camera.
Project Owner Contributor

Analog Camera to CCD or CMOS

brandon-langdonBrandon Langdon

Turn the 2017 Superconf bage into a mediocre thermal camera
Project Owner Contributor

Thermal Superconf 2017 Badge

sphereinaboxsphereinabox

Take photographs of the entire body to get a record of all skin lesions for easy future comparisons and early detection of skin cancer
Project Owner Contributor

Open source Total Body Photography system

natanosnatanos

M5Stack + MLX90640
Project Owner Contributor

M5 Thermal Camera

costas-vavCostas Vav

Does this project spark your interest?

Become a member to follow this project and never miss any updates
Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2025 Hackaday

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "Optical Bingo ball reader assembly", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.