![]() ![]() During measurement it draws 0.3mA and in standby 60uA. It can measure temperature from 0-50 ☌ with an accuracy of ☒☌ and relative humidity ranging from 20-95% with an accuracy of ±5%. The DHT11 sensor comes in a single row 4-pin package, breadboard friendly, and operates from 3.5 to 5.5V. The DHT11 sensor uses a proprietary 1-wire protocol which is described down bellow. With an analog sensor you would have to set up an ADC and measure the sensor resistance directly and interpret the data. Digital means that the sensor incorporates a 8 bit microcontroller inside that takes care of ADC measurements for you. This post describes how to interface a DHT11 temperature and humidity sensor with an AVR microcontroller and how to read and display the data on an LCD using the DHT11 library.ĭTH11 is a low cost hobby digital sensor used to measure temperature and relative humidity. Interfacing DHT11 sensor with an AVR Microcontroller ![]()
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