{"product_id":"adafruit-htu21d-f-temperature-humidity-sensor-breakout-board","title":"Adafruit HTU21D-F Temperature \u0026 Humidity Sensor Breakout Board","description":"\u003carticle class=\"lzd-article\"\u003e\n\u003ch2\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\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 52% when it feels more like 77%. Enter the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHTU21D-F Temperature + Humidity Sensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- the best way to prove the weatherman wrong!\u003cbr\u003e\u003cbr\u003eThis I2C digital humidity sensor is an accurate and intelligent alternative to the much simpler\u003cspan\u003e \u003c\/span\u003eHumidity and Temperature Sensor - SHT15 Breakout\u003cspan\u003e \u003c\/span\u003eIt has a typical accuracy of ±2% with an operating range that's optimized from 5% to 95% RH. Operation outside this range is still possible - just the accuracy might drop a bit. The temperature output has an accuracy of ±1°C from -30~90°C. If you're looking to measure temperature more accurately, we recommend the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.makerlab-electronics.com\/products\/esp32-arduino-lvgl-wifi-bluetooth-touchscreen-2-8-resistive-3-5-capacitive-and-resistive?_pos=1\u0026amp;_psq=LVGL\u0026amp;_ss=e\u0026amp;_v=1.0?variant=43922146689215\"\u003eMCP9808 High Accuracy I2C Temperature Sensor Breakout Board\u003c\/a\u003e\u003ca href=\"https:\/\/www.adafruit.com\/products\/1782\"\u003e.\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eSuch a lovely chip - so we spun up a breakout board that includes the Filtered version (the white bit of plastic which is a PTFE filter to keep the sensor clean), a 3.3V regulator and I2C level shifting circuitry. This lets you use it safely with any kind of microcontroller with 3.3V-5V power or logic.\u003c\/p\u003e\n\u003cp\u003eTo get you going fast, we spun up a custom made PCB in the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSTEMMA QT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eform factor, making them easy to interface with. The\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/introducing-adafruit-stemma-qt\/what-is-stemma-qt\"\u003eSTEMMA QT connectors\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eon either side are compatible with the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/qwiic\"\u003eSparkFun Qwiic\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eI2C connectors. This allows you to make solderless connections between your development board and the HTU21Ds or to chain them with a wide range of other sensors and accessories using a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecompatible cable\u003c\/strong\u003e.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Dimensions: 25.5mm x 17.0mm x 5.0mm \/ 1.0\" x 0.7\" x 0.2\"\u003c\/li\u003e\n\u003cli\u003eI2C 7-bit address 0x40\u003c\/li\u003e\n\u003cli\u003eCode: 1899\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003ePacking List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x HTU21D-F Temperature \u0026amp; Humidity Sensor Breakout Board\u003c\/li\u003e\n\u003cli\u003eheader pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eLinks:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-htu21d-f-temperature-humidity-sensor\/overview\"\u003eIt's also very easy to use, thanks to our Arduino library and tutorial. Check out our tutorial for pinouts, wiring, files, etc.\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-htu21d-f-temperature-humidity-sensor\/downloads\"\u003ePCB CAD files, datasheets, Fritzing object, etc available in the tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":42919357317311,"sku":"MLE01583","price":899.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE01583.jpg?v=1755845892","url":"https:\/\/makerlab.ph\/products\/adafruit-htu21d-f-temperature-humidity-sensor-breakout-board","provider":"Makerlab PH","version":"1.0","type":"link"}