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BLOG

August 27, 2026 AT 3:30 pm

New component added SCD43👃Adafruit IO WipperSnapper 1.0.0 Beta 132 Released!
— by Tyeth
Filed under: adafruit learning technologies, announce, environment, Humidity Sensors, Sensors, Temperature Sensors, wippersnapper — 
Tags: Adafruit IO, air quality, air quality monitoring, beta, Carbon dioxide, co2, co2 sensor, firmware, IoT, no code, open firmware, open source, SCD41, SCD43, sensirion, wippersnapper —

August 20, 2026 AT 8:15 am

UPDATED GUIDE: Adafruit SCD-4x – True CO2 Temperature and Humidity Sensors #AdafruitLearningSystem @Adafruit
— by Liz Clark
Filed under: arduino, Breakout Boards, CircuitPython, stemma, Stemma QT, Temperature Sensors — 
Tags: Adafruit SCD-43, arduino, circuitpython, co2, humidity, SCD-4x, temperature —

May 1, 2026 AT 2:30 pm

UPDATED GUIDE: Adafruit STCC4 and SHT41 CO2, Temperature & Humidity Sensor #WipperSnapper #AdafruitIO #AdafruitLearningSystem @Adafruit
— by Tyeth
Filed under: Adafruit IO, adafruit learning system, arduino, Breakout Boards, environment, Humidity Sensors, Sensors, stemma, Stemma QT, Temperature Sensors, wippersnapper — 
Tags: Adafruit IO, Adafruit STCC4 and SHT41 CO2, adafruitio, air quality, arduino, Carbon dioxide, circuitpython, co2, environmental sensor, humidity, STCC4, Stemma QT, temperature, Temperature & Humidity Sensor, wippersnapper —

March 17, 2026 AT 2:15 pm

NEW GUIDE: Adafruit STCC4 and SHT41 CO2, Temperature & Humidity Sensor #AdafruitLearningSystem @Adafruit
— by Liz Clark
Filed under: adafruit learning system, arduino, Breakout Boards, CircuitPython, environment, Humidity Sensors, Sensors, stemma, Stemma QT, Temperature Sensors — 
Tags: Adafruit STCC4 and SHT41 CO2, air quality, arduino, circuitpython, co2, environmental sensor, humidity, Stemma QT, temperature, Temperature & Humidity Sensor —

October 15, 2025 AT 4:52 pm

EYE ON NPI – Sensirion STCC4 Miniature CO2 Sensor #DigiKey #adafruit @digikey @sensirion @adafruit
— by Anne Barela
Filed under: Adafruit Video, ask-an-engineer, Breakout Boards, EYE on NPI, Sensors, Stemma QT — 
Tags: air, co2, digikey, environmental, sensirion, sensor, STCC4 —

October 7, 2025 AT 3:16 pm

An ESP32-S3 based air quality, particulate and CO2 monitor
— by Anne Barela
Filed under: displays, Sensors — 
Tags: co2, co2 sensor, humidity, Particulate Sensor, sensors, temperature —

June 24, 2025 AT 3:04 pm

A DIY door fan to fix groggy mornings
— by Anne Barela
Filed under: projects — 
Tags: co2, design, diy, fan, sensor —

June 20, 2025 AT 2:33 pm

UPDATED GUIDE: Adafruit SEN6x Breakout for Sensirion SEN66 (STEMMA QT / Qwiic) #AdafruitLearningSystem @Adafruit
— by Tyeth
Filed under: adafruit learning system, adafruit.io, Sensors, wippersnapper — 
Tags: air quality, air quality monitoring, air quality sensor, co2, CO2 meter, co2 sensor, guide, nitrogen, no code, nocode, ppm, sen54, SEN5x, SEN66, sen6x, sensirion, Sensirion SEN6x, sensor, Stemma QT, voc, voc index, wippersnapper —

September 25, 2024 AT 9:25 am

Low cost CO2 sensor comparison: photo-acoustic vs NDIR
— by Anne Barela
Filed under: Sensors — 
Tags: air quality, air quality monitoring, air quality sensor, co2, S8, SCD40, SCD41, SenseAir, sensor —

August 13, 2021 AT 4:25 pm

New Products 8/13/2021 Featuring Adafruit SCD-41 – NDIR CO2 Temperature and Humidity Sensor – STEMMA QT / Qwiic! (Video)
— by Angelica
Filed under: ask-an-engineer, New Products — 
Tags: AAE, air quality, cherry mx, CHOC, co2, diy keyboard, humidity sensors, kailh, keyboard, keyboard layouts, keycaps, keypad, MX, new products, sensor breakout, temperature sensor, temperature sensors —

May 28, 2021 AT 9:35 am

3D Printed RP2040 Powered Ring Measures CO2 #Wearables @guido_burger
— by Anne Barela
Filed under: NeoPixels, projects, Sensors — 
Tags: air quality, co2, neopixel ring, RP2040, sensor, wearable, wearable technology, Wearables —

May 13, 2021 AT 10:50 am

EYE on NPI – Sensirion SCD40 and SCD41 Compact CO2 Air Sensors #EYEonNPI #DigiKey #Adafruit @DigiKey @sensirion @Adafruit
— by Anne Barela
Filed under: Adafruit Video, ask-an-engineer, components & parts, digikey, EYE on NPI, Sensors — 
Tags: co2, digi-key, digikey, SCD40, SCD41, sensirion, sensor, true c02 sensor —

February 17, 2021 AT 11:15 am

CO2 Monitoring As an Anti-Covid19 Measure #ShowAndTell #Feather #COVID19
— by Anne Barela
Filed under: displays, feather, projects, Sensors, show and tell — 
Tags: co2, covid-19, covid19, feather, health, monitoring —

January 29, 2021 AT 3:27 pm

Family creates a homemade carbon dioxide test #Feather #COVID19 #Health #DIY @mtlgazette
— by Anne Barela
Filed under: education, environment, feather, Health — 
Tags: air quality, air quality sensor, co2, education, environment, feather, FeatherWing, health —

January 13, 2021 AT 10:46 am

Monitoring CO2 levels with @adafruitIO #IoT @curiouselectric
— by brent
Filed under: adafruit.io — 
Tags: Adafruit IO, co2, IoT, monitor —
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