Raspberry Pi LEGO sorter | Technology Org

Maria J. Danford

Raspberry Pi is at the coronary heart of this AI–powered, automated sorting machine that is capable of recognising and sorting any LEGO brick.

And its maker Daniel West believes it to be the initially of its kind in the entire world!

Very best at any time

This mega-machine was two several years in the earning and is a LEGO creation alone, crafted from more than ten,000 LEGO bricks.

Graphic: Daniel West.

It can kind any LEGO brick you put in its enter bucket into a single of eighteen output buckets, at the price of a single brick each two seconds.

Although Daniel was influenced by preceding LEGO sorters, his creation is a enormous move up from them: it can recognise certainly each LEGO brick at any time designed, even bricks it has by no means noticed prior to. As a result the ‘universal’ in the title ‘universal LEGO sorting machine’.


Graphic: Daniel West.


The synthetic intelligence algorithm at the rear of the LEGO sorting is a convolutional neural community, the go-to for picture classification.

What helps make Daniel’s venture a ‘world first’ is that he educated his classifier employing 3D product photos of LEGO bricks, which is how the machine can classify certainly any LEGO brick it’s faced with, even if it has by no means noticed it in real existence prior to.

Daniel has produced a complete excess online video (previously mentioned) conveying how the AI in this venture functions. He shouts out all the open source application he used to run the Raspberry Pi Digicam Module and access 3D teaching photos etcetera. at this position in the online video.

LEGO brick separation

The vibration plate in action, feeding solitary components into the scanner

Daniel essential the enter bucket to thoroughly decide out a solitary LEGO brick from the mass he chucks in at at the time.

This is realized with a primary and secondary belt gradually pushing components onto a vibration plate. The vibration plate uses a super fast LEGO motor to shake the bricks around so they are not sitting on prime of each other when they get to the scanner.

Scanning and sorting

Graphic: Daniel West.

A Raspberry Pi Digicam Module captures online video of each brick, which Raspberry Pi 3 Design B+ then procedures and wirelessly sends to a a lot more powerful computer system equipped to run the neural community that classifies the components.

The classification determination is then sent again to the sorting machine so it can spit the brick, employing a series of servo-managed gates, into the suitable output bucket.

More-credit history homework

Graphic: Daniel West.

Daniel is such a boss maker that he wrote not a single, but two even further reading through article content for those of you who want to deep-dive into this mega LEGO creation:

Supply: Raspberry Pi blog site, by Ashley Whittaker.

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