{"product_id":"adafruit-ccs811-air-quality-sensor-breakout-voc-and-eco2-stemma-qt-qwiic-discontinued","title":"Adafruit CCS811 Air Quality Sensor Breakout - VOC and eCO2 (STEMMA QT \/ Qwiic) [Discontinued]","description":"\u003cp\u003eBreathe easy - we finally have an I2C VOC\/eCO2 sensor in the Adafruit shop! Add air quality monitoring to your project and with an \u003cstrong\u003eAdafruit CCS811 Air Quality Sensor Breakout\u003c\/strong\u003e. This sensor from AMS is a gas sensor that can detect a wide range of Volatile Organic Compounds (VOCs) and is intended for indoor air quality monitoring. When connected to your microcontroller (running our library code) it will return a Total Volatile Organic Compound (TVOC) reading and an equivalent carbon dioxide reading (eCO2) over I2C.\u003c\/p\u003e\u003cp\u003eThe CCS811 has a 'standard' hot-plate MOX sensor, as well as a small microcontroller that controls power to the plate, reads the analog voltage, and provides an I2C interface to read from.\u003c\/p\u003e\u003cp\u003eThis part will measure \u003cstrong\u003eeCO2\u003c\/strong\u003e (equivalent calculated carbon-dioxide) concentration within a range of 400 to 8192 parts per million (ppm), and \u003cstrong\u003eTVOC\u003c\/strong\u003e (Total Volatile Organic Compound) concentration within a range of 0 to 1187 parts per billion (ppb). According to the fact sheet it can detect Alcohols, Aldehydes, Ketones, Organic Acids, Amines, Aliphatic and Aromatic Hydrocarbons.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlease note, this sensor, like all VOC\/gas sensors, has variability and to get precise measurements you will want to calibrate it against known sources!\u003c\/strong\u003e That said, for general environmental sensors, it will give you a good idea of trends and comparisons.Also, AMS recommends that you run this sensor for 48 hours when you first receive it to \"burn it in\", and then 20 minutes in the desired mode every time the sensor is in use. This is because the sensitivity levels of the sensor will change during early use. Finally, this chip uses I2C clock stretching, and some microcontrollers\/computers don't support that (e.g. Raspberry Pi)\u003c\/p\u003e\u003cp\u003eThe CCS811 has a configurable interrupt pin that can fire when a conversion is ready and\/or when a reading crosses a user-settable threshold. The CCS811 supports multiple drive modes to take a measurement every 1 second, every 10 seconds, every 60 seconds, or every 250 milliseconds.\u003c\/p\u003e\u003cp\u003eNice sensor right? So we made it easy for you to get right into your next project. The surface-mount sensor is soldered onto a custom made PCB in the \u003cstrong\u003eSTEMMA QT\u003c\/strong\u003e form factor, making them easy to interface with. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the CCS811 or to chain it with a wide range of other sensors and accessories using a \u003cstrong\u003ecompatible cable\u003c\/strong\u003e. QT Cable is not included, but we have a variety in the shop\u003c\/p\u003e\u003cp\u003eFor your convenience we've pick-and-placed the sensor on a PCB with a 3.3V regulator and some level shifting so it can be easily used with your favorite 3.3V or 5V microcontroller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlease note,\u003c\/strong\u003e an earlier version of this chip supported an on-board thermistor. The sensor has been revised (the chip itself!) to no longer support the thermistor temperature readings. Please use an external temperature sensor and keep to using this one for gas sensing.\u003c\/p\u003e\u003cp\u003eWe've also prepared software libraries to get you up and running in Arduino IDE or CircuitPython with just a few lines of code! Check out our tutorial for more information!\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cdiv id=\"tab-technical-details-content\" class=\"panel-collapse collapse in\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"\u003e\n\u003cul\u003e\n\u003cli\u003eSoftware libraries, hookup guide, datasheets, schematic, EagleCAD PCB files, and Fritzing available in the product tutorial!\u003c\/li\u003e\n\u003cli\u003eUses I2C address 0x5A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eAs of Jan 7, 2021\u003c\/strong\u003e - We've updated this sensor to our 0.7\" x 1.0\" STEMMA QT standard for sensors. There are now four mounting holes and two STEMMA QT connectors for plug-and-play connectivity!\u003cstrong\u003e The pinout has changed slightly to be standardized.\u003c\/strong\u003e Functionality  is the same otherwise.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e \u003c\/div\u003e\n\u003cul id=\"product-files\"\u003e \u003cli\u003e\nCCS881 Datasheet \u003c\/li\u003e\n\u003c\/ul\u003e \u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e \u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":46039310499900,"sku":"dql1787257744823","price":15.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6985\/2220\/files\/adafruit-ccs811-air-quality-sensor-breakout---voc-and-eco2-stemma-qt-qwiic-disco_1.jpg?v=1787257753","url":"https:\/\/luxecladstore.shop\/products\/adafruit-ccs811-air-quality-sensor-breakout-voc-and-eco2-stemma-qt-qwiic-discontinued","provider":"My Store","version":"1.0","type":"link"}