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Documents Creating a “Mummy” Wake Word Detector with Raspberry Pi and Edge Impulse -- Episode 547
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  • Author Author: tariq.ahmad
  • Date Created: 7 Apr 2022 2:50 PM Date Created
  • Last Updated Last Updated: 22 Apr 2022 7:24 AM
  • Views 6829 views
  • Likes 7 likes
  • Comments 8 comments

Creating a “Mummy” Wake Word Detector with Raspberry Pi and Edge Impulse -- Episode 547

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Like many parents, Lorraine’s children like to say her name over and over again, several hundred times a day, or is thousands?? Lorraine decided to use her maker skills to find out! Using Edge Impulse she trained a Raspberry Pi to listen out for her custom wake word: Mummy. Now connected to a Raspberry Pi she could add any output she wanted, like a speaker that would play her voice recording back! Or an OLED screen displaying a counter. What would you add?

Supplemental Content:

  • Edge Impulse
  • ReSpeaker install notes
  • Adafruit Circuit Python
  • Adafruit OLED

Bill of Material:

Product Name Manufacturer Quantity Buy Kit
Grove Beginner kit for Arduino SEEED STUIDO 1 Buy Now
Raspberry Pi 4 Raspberry Pi 1 Buy Now
Raspberry Pi USB-C Power Supply Raspberry Pi 1 Buy Now
SD Card TRANSCEND 1 Buy Now
ReSpeaker Dual Microphone HAT for Raspberry Pi SEEED STUIDO 1 Buy Now
 

Additional Parts:

A speaker with an audio jack

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  • Major
    Major over 3 years ago

    by chance got the original edited mummy file for the audio playback, I'm new to python so have no idea where to start but I could use it as a great guide

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  • DAB
    DAB over 3 years ago

    Nice practical application.

    I need one that speaks dog so it can command my dog when she starts barking.

    The Grove kit provides a lot of interesting capabilities.

    I would think about putting together a programming tutorial using each item stand alone and then begin combining them into more complex functions until you get to an application that uses all of the pieces. 

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  • beacon_dave
    beacon_dave over 3 years ago in reply to beacon_dave

    The left hand side has features that would be quite a good for minimalist user interface design type projects. Menu / submenu nested type HMI interaction using the potentiometer for up/down and the button for select. The buzzer can give audio feedback and the LED used to show if a selected parameter is enabled/disabled.

    (I'm quite interested in this area as more and more stuff could potentially benefit from it for the likes of preset recall / parameter settings using a simple but low-cost HMI type interfaces. Unfortunately Grove didn't include the 2x16 alphanumeric LCD from the starter kit box or a 5-way joystick switch.)

    It also could be used for a digital combination lock / cryptex puzzle using the potentiometer to rotate the number and the button to select it and move to the next column. If you got yourself a bigger cookie jar (good excuse?) then combined with the light sensor and buzzer you can protect your cookies from those unauthorised cookie monsters.

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  • lorrainbow
    lorrainbow over 3 years ago in reply to colporteur

    Thanks for your comment.

    I'm definitely going to look at the Arduino board a bit closer for some new projects. 

    Have a look at the edge website. Even if you don't have a raspberry pi, I think you can add it to a smartphone. It's well worth a play if you're interested. Let us know how you get on!

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  • beacon_dave
    beacon_dave over 3 years ago in reply to lorrainbow

    The board looks like it has about all the ingredients for some sort of 8-bit retro game machine. Screen, buzzer, LED, push button (start/fire) and potentiometer (game paddle). (There is also a light sensor to detect when you shouldn't be playing games...) 

    The accelerometer could be used as a tilt joystick with the potentiometer used for sensitivity settings for tilt games/puzzles and you could perhaps work in one of those Adafruit 2.8" TFT touch shields in the centre for 'big screen' fun.

    It's also got the making of an environmental monitor with temperature, humidity, pressure sensor, light sensor, sound sensor. The LED and buzzer could be used to indicate if set points have been reached.

    You could keep an eye out on Katie's 'fidget cube' project and have a two-dimensional version Slight smile

    Grove Beginner Kit for Arduino

    [ Image linked from:  https://wiki.seeedstudio.com/Grove-Beginner-Kit-For-Arduino/ ]

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  • colporteur
    colporteur over 3 years ago

    Grove Beginner Kit looks like a technology Meccano sets for big kids. How about a do-nothing-machine similar to John Wiltroutt's. Leave the boards attached of course but exercise each one. They could run in a pattern, random, sequence... Great comp si demon at education fairs.

    I'm not sure all of what is on the board but it does look like inputs and outputs. What kind of Dr. Who strange machine would it look like.

    Really enjoyed your video presentation. Makes me want to go out a learn how to do it.

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  • lorrainbow
    lorrainbow over 3 years ago in reply to beacon_dave

    Hi Dave! 

    Yeah, I thought the same thing about the grove kit until I started to play with it. It does kind of feel like a big kids toy alright, lots of shiny bits. Might be a good idea for a future video, a toddlers sensory toy. 

    So glad you have my book! You never know when the zombie apocalypse is going to start, gotta keep the kids on their toes. 

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  • beacon_dave
    beacon_dave over 3 years ago

    Could you somehow turn that 'Grove Beginner Kit' into a child's sensory toy ?

    (I didn't realise that kit had a built-in microcontroller and all wired up. I thought it was just the Grove shield plus separate Grove modules on a single PCB.) 

    PS I have been reading your book but I'm getting a bit concerned about the apparent zombie problem you have over there. No wonder your children are calling out all the time !

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