The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed). It's fairly simple to use but requires careful timing to grab data. The only real downside of this sensor is you can only get new data...

Discontinued - you can grab AM2301B - Wired Enclosed AHT20 - Temperature and Humidity Sensor instead! The AM2302 is a wired version of the DHT22, in a large plastic body. It is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin...

OK you've signed up for Adafruit.io and you're ready to build something cool and Internet-connected. All you need is this starter kit which will get you going with lots of parts that go very well with our service and are the most common sensors and actuators you may want. Sense light, motion, humidity, temperature, and more, then send it for storage on adafruit.io!...

In collaboration with Microsoft and Hackster.io, Adafruit's releasing a Virtual IoT pack with boards, sensors, and quite a number of components! This kit is specifically curated for IoT Virtual Bootcamp hosted by Microsoft and Hackster.io in partnership with Adafruit. This kit includes a pre-soldered Adafruit Feather HUZZAH with ESP8266 WiFi and some sensors and...

In collaboration with Microsoft and Hackster.io, Adafruit's releasing a Virtual IoT pack with boards, sensors, and quite a number of components! This kit is specifically curated for IoT Virtual Bootcamp hosted by Microsoft and Hackster.io in partnership with Adafruit. This kit includes a pre-soldered Adafruit Feather HUZZAH with ESP8266 WiFi and some sensors and...

In collaboration with Microsoft and Hackster.io, Adafruit's releasing a Virtual IoT pack with boards, sensors, and quite a number of components! This kit is specifically curated for IoT Virtual Bootcamp hosted by Microsoft and Hackster.io in partnership with Adafruit. This kit includes a pre-soldered Adafruit Feather HUZZAH with ESP8266 WiFi and some sensors and...

The AHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22. 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. This sensor has a typical accuracy of +- 2% relative humidity, and +-0.3 °C at 20-80% RH and 20-60...

The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed). It's fairly simple to use but requires careful timing to grab data. The only real downside of this sensor is you can only get...

The DHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22. This little sensor looks an awful lot like 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...

This little sensor looks an awful lot like 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 AM2320, it uses plain-old-I2C. Whew, that makes things a little easier, doesn't it? But! We'll let you know, this sensor is...

The SHT30-D sensor has an excellent ±2% relative humidity and ±0.5°C accuracy for most uses. Unlike earlier SHT sensors, this sensor has a true I2C interface. The enclosed box is a Sensiron SHT-30 digital sensor (much like our breakout here or this weather-proof mesh sensor) but with the 4 data/power wires brought out to bare wires. Any SHT-3x code...

The AM2301B is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the AM2302. In fact, this enclosed sensor looks an awful lot like the popular DHT22/AM2302 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...

In collaboration with Microsoft, Adafruit's releasing IoT Starter Kits with boards, sensors, and components that are 'Azure Certified for IoT.' Azure is Microsoft's cloud solution for IoT projects that's a comprehensive and flexible program from the Microsoft team that they're extending into the open source hardware world. This starter kit includes a pre-soldered...

In collaboration with Google and Mongoose OS, Adafruit's releasing an IoT Core Pack based around our Feather HUZZAH32! This kit includes a pre-soldered Adafruit Feather HUZZAH with ESP32 WiFi and some sensors and components to get you started on your IoT journey. Feather is a development board from Adafruit that, like its namesake, is thin, light and lets you fly. We...

AdaBox003 – The World of IoT (Curated by Digi-Key) is the perfect gift for folks who are just getting started in the world of DIY electronics. It's an excellent introduction to our wide world of the Internet of Things and a great way to test the waters of AdaBox before committing to a subscription. Please note! This is NOT the subscription version of AdaBox!...

So maybe it's not "back to school" season any more - but here at Adafruit, we like to think that it's always a good time to learn something new, which we guess means that everywhere we go is a proverbial school that we're perpetually going back to. To celebrate the continual season, we partnered with our good friends at Arrow Electronics to release custom packs of...