{"product_id":"dht20-aht20-pin-module-i2c-temperature-and-humidity-sensor","title":"DHT20 - AHT20 Pin Module - I2C Temperature and Humidity Sensor","description":"\u003cp\u003eThe DHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22.\u003c\/p\u003e\n\u003cp\u003eThis little sensor looks an \u003cem\u003eawful lot \u003c\/em\u003elike the popular DHT11\/DHT22 temperature and humidity sensors, but unlike classic DHT sensors, it has an I²C interface! That's right, you do not need to use a bit-bang timing-specific protocol to talk to the DHT20, it uses plain-old-I²C. And, you can power it with anything from 2.5V to 5.5V so it's good with 3V or 5V microcontrollers. Whew, that makes things a little easier, doesn't it?\u003c\/p\u003e\n\u003cp\u003eInside is the AHT20. You can take sensor readings as often as you like, and it uses standard I2C so its super easy to use with any Arduino or Linux\/Raspberry Pi board.\u003c\/p\u003e\n\u003cp\u003eThis sensor has a typical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C. There is only one I2C address so it's not a good option when you need multiple humidity sensors.\u003c\/p\u003e\n\u003cp\u003eThat said, for maker and IoT projects? You can't beat the simplicity and price! And we've got ready-to-go working Arduino and CircuitPython code to use it. \u003cstrong\u003eCheck out our detailed guide for library code, datasheet, and more\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach order comes with one DHT20 pin module sensor with built-in pullups. You just provide any microcontroller that can run our Arduino or CircuitPython library.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cdiv class=\"panel-collapse collapse in\" id=\"tab-technical-details-content\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"\u003e\n\u003cul\u003e\n\u003cli\u003eI2C address \u003cspan class=\"pl-c1\"\u003e0x38\u003c\/span\u003e (cannot be changed)\u003c\/li\u003e\n\u003cli\u003e2.5V to 5.5V power and logic level\u003c\/li\u003e\n\u003cli\u003ePin order from Left to Right: Power, SDA, Ground, SCL\u003c\/li\u003e\n\u003cli\u003eBuilt in 4.7K I2C pullup resistors.\u003c\/li\u003e\n\u003cli\u003eUsage Humidity: 0... 100%RH\u003c\/li\u003e\n\u003cli\u003eUsage Temperature: -40ºC – 80ºC\u003c\/li\u003e\n\u003cli\u003eTypical accuracy of ±2% relative humidity, and ±0.3 °C at 20-80% RH and 20-60 °C\u003c\/li\u003e\n\u003cli\u003eOverall accuracy of ±3% relative humidity, and ±0.5 °C\u003c\/li\u003e\n\u003cli\u003eDatasheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul id=\"product-files\"\u003e\u003c\/ul\u003e\n\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\n\u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":48624216506586,"sku":"tue1789686794702","price":4.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/8318\/3834\/files\/dht20---aht20-pin-module---i2c-temperature-and-humidity-sensor_1.jpg?v=1789686799","url":"https:\/\/memoryfoamwear.shop\/products\/dht20-aht20-pin-module-i2c-temperature-and-humidity-sensor","provider":"My Store","version":"1.0","type":"link"}