kartben/artificial-nose

Instructions, source code, and misc. resources needed for building a Tiny ML-powered artificial nose.

Artificial Nose

This repository contains all the instructions, source code, and resources for building your very own DIY artificial nose, powered by TinyML.

Introduction

Some time back in May 2020, like I'm guessing many other people, I spent quite some time trying to perfect my bread recipe, including trying to determine when my sourdough starter would be in the ideal condition to bake perfect baguettes.

Fast-forward to a few weeks later, I had assembled a full-blown (pun intended!) artificial nose. It can be used for a wide variety of applications, from helping folks suffering from anosmia to spot the smell of burning food or spoiled milk, to monitoring the cleanliness of office buildings, etc.

I am sharing in this repository all the instructions, source code, bill of materials, etc. for you to build and train your very own artificial nose. Enjoy! 👃

Repository contents

• 💰 Bill of materials ;
• ⚡ Schematics & Wiring diagram ;
• 👩‍💻 Firmware source code ;
• 🧊 3D enclosure model files.

Author

👤 Benjamin Cabé

• Website: https://blog.benjamin-cabe.com
• Twitter: @kartben
• Github: @kartben
• LinkedIn: @benjamincabe

🤝 Contributing

Contributions, issues and feature requests are welcome!

Feel free to check issues page.

Show your support

Give a ⭐️ if this project helped you!

📝 License

Copyright © 2020-2021 Benjamin Cabé.

This project is MIT licensed.

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This README was generated with ❤️ by readme-md-generator

artificial-nose's Issues

Set up screen on Wio Terminal? "Coffee smiley face 100%"

How do you set up the screen on Wio Terminal? That is showing the coffee cup and smiley face with % shown. I do not need the 4 axis of gas sensor measurements.

Is there any tutorial on it? Any help is apprecaited. Thanks!

add STL files for enclosure

Fails to build

Hi, I couldn't get a build to compile with my own data from Edge Impulse, so I tried the /firmware directory straight from this repo, and am getting errors like this:

Log

Any ideas? Thanks!

Improve sprite management to insure no drifting in data sampling

Teach a Faux Nose New Tricks

Good evening,
I was following the project,, and I am having some issues following the two last steps of this section that you published in Make Magazine. It could be great if you could provide some more instructions on how to use 'pio run', as I am a pretty new coder and I am having issues.
Thank you

Add instructions on how to setup wifi and configure Azure IoT Central connection

this is related to issue #15.
I have those instructions mostly ready-to-go per a blog post that I am about to publish

remove line charts in wifi/iot-enabled version of the app

Multichannel Gas Sensor Not Working

Hey! I was working on the smart nose project, however, the multichannel gas sensor v2 is not recording any change in compounds when I place alcohol near the sensor. I have done the warming - up process and even tried to reset the Wio Microcontroller, but nothing is working. What should I do? It always shows ambient (99%) and does not show any gas levels.

add UF2 file

Tutorial on using the hardware / tools

I was interested in experimenting with this project after getting an email from Seeed Studio. On this page there is a link that says "Follow Benjamin’s all open-source libraries and tutorial" which points to the project on GitHub.

I looked for the tutorial, but I could not find anything on the page other than BOM, Wiring diagram, source code, 3D model. Is there some documentation that walks through loading and using TFLite, training, inference etc.? Thanks!

Implement OTA firmware upgrade

add icons (coffee, air, etc.)

Consider replacing MOSFET with proper DC motor controller

Right now the fan is either off or full speed. It's far from ideal as it's causing the sensors to have a hard time picking up the smells. Having a more gentle airflow would likely help a lot

Experiencing an issue with the AI model freezing or becoming unresponsive

I am experiencing an issue with the AI model freezing when I give it to “smell” something different with the Wio Terminal and the Grove - Multichannel Gas Sensor v2. But just testing it in training mode works just fine. I haven’t found anyone who has this problem. I have recorded a video of this problem. I guess it does not have enough memory due to newer firmware on Wioterminal.

I have attached the video with this issue https://www.youtube.com/watch?v=hiUD3TPLzSI

Thank in advance

Add "toggle backlight on/off" functionality (mapped to button B)

this can be useful to save energy when running on external battery... 🔋

Improve 3D enclosure design

As of now, the enclosure does not do the best job at "routing" the airflow to the sensor (the excessive fan speed might also be playing a role there...).
Might be worth tweaking the model to improve the situation. Contributions are welcome :-)

Sensor volatile organic compounds (VOC) not working after the last update

Hello
As shown in the picture, the Volatile Organic Compounds (VOC) sensor does not work after the latest update
On the Edge Impulse website, not on the screen
While when it was back to Firmware UF2
He read again

Thank you

add Fritzing diagram

Fails to build

Hi, I'm getting failures when trying to compile with my own
training data, I went back to the original source code and attempted to compile but It's still erroring out. I've included the log, thanks for any input.
log.txt

Instructions?

I am entirely new to pio and the architecture of the artificial-nose changed from straight up Arduino to PIO since the introduction was written.

Specifically, there are no instructions on how to build the firmware, but I think I managed to get it done, however there are now no instructions regarding what to do with the compiled firmware as the output was not .UF2 but firmware.bin and firmware.elf

Can someone please help?

file not found

hello, when I try to build the app there is an error 'FileNotFoundError: [WinError 2] Le fichier spécifié est introuvable' and it seems trouble is with the line below

platform_packages =
framework-arduino-samd-seeed@https://github.com/Seeed-Studio/ArduinoCore-samd.git

if I remove framework-arduino-samd-seeed@, it is a little bit better until another trouble :( :

Executing task: C:\Users\Serge.platformio\penv\Scripts\platformio.exe run --target upload <

Processing seeed_wio_terminal (platform: atmelsam; board: seeed_wio_terminal; framework: arduino)
----------------------------------------------------------------------------------Tool Manager: Installing platformio/tool-bossac @ ~1.10900.0
Tool Manager: tool-bossac @ 1.10900.0 has been installed!
Tool Manager: Installing ArduinoCore-samd @ *
*Error: Could not find the package with 'ArduinoCore-samd @ ' requirements for your system 'windows_amd64'
The terminal process "C:\Users\Serge.platformio\penv\Scripts\platformio.exe 'run', '--target', 'upload'" terminated with exit code: 1.

thanks

Serge

Compilation error

Hi,
I have compilation error with master branch.
This is the log file.
log_error.txt

thanks,
Mustapha