{"product_id":"aht21-i2c-digital-temperature-and-humidity-sensor-module","title":"AHT21 I2C Digital Temperature and Humidity Sensor Module","description":"\u003cp\u003eThis AHT21 module is a small digital temperature and humidity sensor that outputs calibrated readings over standard I2C. It combines a capacitive MEMS humidity element and an on-chip temperature sensor with a dedicated ASIC, and its wide 1.8 to 6.0V supply range makes it easy to use with both 3.3V and 5V boards.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCalibrated digital output over I2C, so no analog conversion is needed\u003c\/li\u003e\n\u003cli\u003eTypical accuracy of ±2% relative humidity and ±0.3°C\u003c\/li\u003e\n\u003cli\u003eFine resolution: 0.024% RH and 0.01°C\u003c\/li\u003e\n\u003cli\u003eWide 1.8 to 6.0V working voltage\u003c\/li\u003e\n\u003cli\u003eCompact 16 x 11mm board with a 4-pin 2.54mm header\u003c\/li\u003e\n\u003cli\u003eWorks from -40 to 85°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor:\u003c\/strong\u003e AHT21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e I2C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 1.8 to 6.0V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity accuracy:\u003c\/strong\u003e ±2% typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity resolution:\u003c\/strong\u003e 0.024%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature accuracy:\u003c\/strong\u003e ±0.3°C typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature resolution:\u003c\/strong\u003e 0.01°C typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating range:\u003c\/strong\u003e -40 to 85°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule size:\u003c\/strong\u003e 16 x 11mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader:\u003c\/strong\u003e 4 pins, 2.54mm pitch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIn the box\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 x AHT21 temperature and humidity sensor module\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor best accuracy, the supplier advises leaving the sensor in an environment above 80% humidity for 12 hours before first use. Build a logger with our \u003ca href=\"\/blogs\/tutorials\/raspberry-pi-bme280-weather-station\"\u003eRaspberry Pi weather station tutorial\u003c\/a\u003e.\u003c\/p\u003e","brand":"SiloCityLabs","offers":[{"title":"Default Title","offer_id":67993809027177,"sku":"sku-50328712053036","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0265\/1537\/4185\/files\/aht21-3.jpg?v=1793993425","url":"https:\/\/makersthings.com\/products\/aht21-i2c-digital-temperature-and-humidity-sensor-module","provider":"maker's things","version":"1.0","type":"link"}