The DHT11 is a simple low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, providing a digital output, updated approximately every 2 seconds. It's fairly simple to use, but requires careful timing to acquire data. 3 to 5V power and I/O 2.5mA max current use during conversion (while requesting data) https://elecena.pl/product/16454927/dht11-temperature-and-humidity-sensor 2020-04-14 https://elecena.pl/product/16454927/dht11-temperature-and-humidity-sensor 2020-09-01 https://elecena.pl/product/16454927/dht11-temperature-and-humidity-sensor 2021-03-02 https://elecena.pl/product/16454927/dht11-temperature-and-humidity-sensor 2025-07-09