Overview

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Smart Fume Extractor

Build a smart DIY fume extractor with an Adafruit FunHouse and CircuitPython. Use a PWM fan and the EMC2101 controller to change the speed based on readings from an SPG30 air quality sensor.

Adafruit IO & Data Logging

Use CircuitPython libraries and ESP32-S2 to connect to WiFi and log sensor data to a feed and display it on a dashboard with Adafruit IO. Use the FunHouse's built-in TFT to display bitmap graphics with fan speed and air quality. Use the built-in buttons to select options like choosing to log data. CircuitPython makes it easy to customize features, experiment with other hardware and quickly iterate.

Fun Features

The electronics are housed in a 3D printed enclosure that snap fits together. Use a carbon activated filter to adsorb smoke from solder fumes. The fan controller and air quality sensor are connect with STEMMA QT cables for a plug-and-play circuit. A mini fan mounted in front of the air quality sensor directs fumes for sampling and measuring. The ports on the FunHouse make it easy to power 5V peripheral.

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Parts

Parts to build this project.

Top-down video of Adafruit Funhouse PCB. The TFT display shows a data readout, and the NeoPixel LEDs glow rainbow colors.
Home is where the heart is...it's also where we keep all our electronic bits. So why not wire it up with sensors and actuators to turn our house into an electronic wonderland....
$34.95
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Miniature 5V Cooling Fan for Raspberry Pi and Other Computers
Looking for another way to keep your Raspberry Pi cool? Hook up this 5V Mini Cooling...
$3.50
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Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor wired up to Feather with OLED wing and a PC fan. A hand slows down the fan and the RPM display decreases.
Cooling fans...They're everywhere, and they serve the important purpose of keeping things cool, generally electronics. One might rightfully think: "these fans are pretty good...
$5.50
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Angled shot of a Adafruit SGP30 Air Quality Sensor Breakout.
Breathe easy with the SGP30 Multi-Pixel Gas Sensor, a fully integrated MOX gas sensor. This is a very fine air quality sensor from the sensor experts...
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Black spongy Carbon Filter
If you do a lot of soldering indoors, a Carbon Filter is essential for absorbing that solder smoke and leaving your air smelling fresh.These measure about...
$1.95
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Opened box showing many nylon screws
Totaling 420 pieces, this M3 Screw Set is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel...
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Black Nylon Screw and Stand-off Set with M2.5 Threads, kit box
Totaling 380 pieces, this M2.5 Screw Set is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel your maker...
$16.95
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Angled shot of JST SH 4-Pin Cable - 200mm Long.
This 4-wire cable is a little over 200mm / 7.8" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of...
Out of Stock
Out of Stock
Angled shot of STEMMA QT / Qwiic JST SH 4-pin Cable.
This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of...
$0.95
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1 x Noctua PWM Fan
140mm Noctua PWM Fan
CircuitPython 

This guide was first published on Jun 09, 2021. It was last updated on May 25, 2021.

This page (Overview) was last updated on May 25, 2021.

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