{"product_id":"adafruit-si7021-temperature-humidity-sensor-breakout-board-stemma-qt-discontinued","title":"Adafruit Si7021 Temperature \u0026 Humidity Sensor Breakout Board (STEMMA QT) [Discontinued]","description":"\u003cp\u003eIt's summer and you're sweating and your hair's all frizzy and all you really want to know is why the weatherman said this morning that today's relative humidity would max out at a perfectly reasonable 42% when it feels more like 77%. Enter the \u003cstrong\u003eSi7021 Temperature + Humidity Sensor\u003c\/strong\u003e - the best way to prove the weatherman wrong!\u003c\/p\u003e\u003cp\u003eThis lovely sensor for Silicon labs has ± 3% relative humidity measurements with a range of 0–80% RH, and ±0.4 °C temperature accuracy at a range of -10 to +85 °C. Great for all of your environmental sensing projects. It uses I2C for data transfer so it works with a wide range of microcontrollers.\u003c\/p\u003e\u003cp\u003eTo get you going fast, we spun up 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 LIS331s or to chain them 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\u003eWe’ve of course broken out all the pins to standard headers and added a voltage regulator and level shifting so allow you to use it with either 3.3V or 5V systems such as the Raspberry Pi + Feather series or Arduino Uno respectively.\u003c\/p\u003e\u003cp\u003eThere's a PTFE filter to keep the sensor clean, that's the white flat thing on top. Also comes with some pin header. Some light soldering is required to attach the header for use in a breadboard but it's easy to do.\u003c\/p\u003e\u003cp\u003eCheck out our awesome tutorial for how to use it with Arduino or CircuitPython\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\u003cp\u003eDatasheets, schematics, EagleCAD files, Fritzing object and more in the tutorial!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eAs of August 25, 2020 \u003c\/strong\u003ewe've updated this sensor to be STEMMA QT compatible - that means there's now an easy way to plug-and-play this sensor without any soldering! The physical shape has changed a little, but the pinout is identical.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eProduct Dimensions: 17.8mm x 15.3mm x 3.0mm \/ 0.7\" x 0.6\" x 0.1\" \u003c\/p\u003e\n\u003cp\u003eProduct Weight: 1.0g \/ 0.0oz \u003c\/p\u003e\n\u003c\/div\u003e \u003c\/div\u003e\n\u003cul id=\"product-files\"\u003e \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":56199966261570,"sku":"eoc1789699789154","price":9.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1013\/4392\/0450\/files\/adafruit-si7021-temperature-humidity-sensor-breakout-board-stemma-qt-discontinue_1.jpg?v=1789699794","url":"https:\/\/bouclebox.shop\/products\/adafruit-si7021-temperature-humidity-sensor-breakout-board-stemma-qt-discontinued","provider":"My Store","version":"1.0","type":"link"}