.product-info-tutorial{margin-bottom:20px;}.product-tutorial-img-container{width:20%;}.product-tutorial-img-container img{margin:0;}version="1.0" standalone="yes"? 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). Its 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 from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.Compared to the DHT22, this sensor is less precise, less accurate and works in a smaller range of temperature/humidity, but its smaller and less expensive We have a Adafruit Learning System guide with schematics, Arduino & CircuitPython code, datasheets and more! Comes with a 4.7K or 10K resistor, which you will want to use as a pullup from the data pin to VCC. Technical Details Low cost 3 to 5V power and I/O 2.5mA max current use during conversion (while requesting data) Good for 20-80% humidity readings with 5% accuracy Good for 0-50°C temperature readings ±2°C accuracy No more than 1 Hz sampling rate (once every second) Body size 15.5mm x 12mm x 5.5mm 4 pins with 0.1" spacing We have a Adafruit Learning System guide with schematics, Arduino & CircuitPython code, datasheets and more! Learn DHT11, DHT22 and AM2302 Sensors Basic temperature & humidity sensors DHT Humidity Sensing on Raspberry Pi or Beaglebone Black with GDocs Logging Humidity and Temperature Logging From Your Pi or Beaglebone Black to the Cloud! WiFi Weather Station Make a WiFi-connected weather station using Arduino & the CC3000 WiFi chip! Trinket Temperature & Humidity LCD Display Monitor temperature and humidity on an LCD display with this compact Trinket-based project SEE ALL GUIDES