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Documents Episode 446: Raspberry Pi 2XL Robot Assistant Part 1
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  • Author Author: tariq.ahmad
  • Date Created: 12 May 2020 5:38 PM Date Created
  • Last Updated Last Updated: 7 Jul 2022 9:35 PM
  • Views 1598 views
  • Likes 8 likes
  • Comments 11 comments
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Episode 446: Raspberry Pi 2XL Robot Assistant Part 1

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Matt is quite picky about the looks of his AI assistants: he shies away from the uncanny valley and abhors the abstraction of a disembodied voice in his devices. With this in mind--and following his penchant for retro restorations--he decides to build a customized voice assistant into the body of one of his favorite "artificial intelligence": the classic 1978 model 2-XL educational toy from Mego. In this first part in a 2-part series, Matt will walk through how the 2-XL toy robot worked, before setting up Google Assistant on the Raspberry Pi, training a custom wake word for the assistant, and rewiring the power supply with modern components!

Supplemental Content:

  • Mego 2XL Robot Teardown
  • How To Set Up Google Assistant On The Matrix Creator Development Board
  • Attempting to get Snowboy working on the Matrix Creator
  • How To Set Up The Google AIY Voice Kit
  • How To Use A Custom Wake Word With Google Assistant
  • How To Train A Custom Wake Word For Google Assistant Using Snowboy

Bill of Material:

Product Name Manufacturer Quantity Buy Kit
RPI3-MODBP - Single Board Computer, Raspberry Pi 3 Model B+, BCM2837B0 SoC, IoT, PoE Enabled Raspberry Pi 1 Buy Now
44082 - Flash Memory Card, MicroSD Card, Class 10, 16 GB Verbatim 1 Buy Now
28-19339 - AC/DC Power Supply, for Raspberry Pi, ITE, 1 Output, 13 W, 5.1 V, 2.5 A Pro-Elec 1 Buy Now
MATRIX.C1.US - Daughter Board, Matrix Creator IoT, Raspberry Pi 3, Loaded with Sensors, Mic Array, US Matrix Labs 1 Buy Now
4080 - GOOGLE AIY VOICE KIT FOR RASPBERRY PI V2 Adafruit 1 Buy Now

 

Additional Parts:

 

Product Name

1978 Mego 2-XL Educational Toy

Screw-on barrel jack connectors (CD016 -  DC Power Connector, Plug, 4 A, Cable Mount, Screw: NO LONGER AVAILABLE)

image
Raspberry Pi 2XL Robot Assistant Part 1

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Top Comments

  • sgro
    sgro over 2 years ago +3
    Still have mine...
  • DAB
    DAB over 2 years ago +1
    Entertaining episode. Fun to watch. DAB
  • sgro
    sgro over 2 years ago in reply to airbornesurfer +1
    It works! The potentiometer is very flakey, as they get as they age.
  • airbornesurfer
    airbornesurfer over 2 years ago in reply to ashwhitt

    Yes, absolutely! Working on an Arduino "thingy" right now, then it'll be on to Part 2!

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  • ashwhitt
    ashwhitt over 2 years ago in reply to airbornesurfer

    Let me know when part 2 is up. I'd like to feature this on the Raspberry Pi blog image
    ashley@raspberrypi.com

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  • airbornesurfer
    airbornesurfer over 2 years ago in reply to sgro

    Yeah, I've replaced plenty of pots in my time, so I well-know the problem! image

     

    really quiet [crunchcrunch] really quiet [CRUNCHCRUNCH] really quiet [crunchCRUNCH] REALLY LOUD

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  • sgro
    sgro over 2 years ago in reply to airbornesurfer

    It works! The potentiometer is very flakey, as they get as they age.

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  • airbornesurfer
    airbornesurfer over 2 years ago in reply to sgro

    Yeah, I was just about to reply. 9v + tip, 300mA if I remember correctly.

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  • sgro
    sgro over 2 years ago in reply to sgro

    answered my own question, I think. 9v -/+ tip/ring.

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  • sgro
    sgro over 2 years ago in reply to airbornesurfer

    Hmmm... was going to try but realized the power adapter is not in the box. Did you happen to mention the specs in the vid? I could make one.

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  • airbornesurfer
    airbornesurfer over 2 years ago in reply to sgro

    Definitely the World's Smartest Robot! Does the 8-track player still work? Some of the plastic parts in the track selector on mine have just deteriorated, so I've got to either locate or fabricate replacements.

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  • airbornesurfer
    airbornesurfer over 2 years ago in reply to DAB

    Thanks, DAB! This is just laying the groundwork; part 2 is going to be even more fun!

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  • sgro
    sgro over 2 years ago

    Still have mine...

     

    image

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