This data pin outputs the value of both temperature and humidity as serial data. The connection diagram for this sensor is shown below.Īs you can see the data pin is connected to an I/O pin of the MCU and a 5K pull-up resistor is used. The DHT11 Sensor is factory calibrated and outputs serial data and hence it is highly easy to set it up. So if you are looking to measure in this range then this sensor might be the right choice for you. The sensor can measure temperature from 0☌ to 50☌ and humidity from 20% to 90% with an accuracy of ☑☌ and ☑%. The sensor is also factory calibrated and hence easy to interface with other microcontrollers. The sensor comes with a dedicated NTC to measure temperature and an 8-bit microcontroller to output the values of temperature and humidity as serial data. The DHT11 is a commonly used Temperature and humidity sensor. The only difference between the sensor and module is that the module will have a filtering capacitor and pull-up resistor inbuilt, and for the sensor, you have to use them externally if required. The sensor will come as a 4-pin package out of which only three pins will be used whereas the module will come with three pins as shown above. Either way, the performance of the sensor is same. The DHT11 sensor can either be purchased as a sensor or as a module. Thermocouple, TMP100, LM75, DS18820, SHT15, LM35DZ, TPA81, D6Tĭifference between DHT11 Sensor and Module Note: Complete technical details can be found in the DHT11 datasheet linked at the bottom of the page. Resolution: Temperature and Humidity both are 16-bit.

Operating current: 0.3mA (measuring) 60uA (standby).You can buy DHT11 sensor module from here. Outputs both Temperature and Humidity through serial Data The DHT11 is a commonly used Temperature and humidity sensor that comes with a dedicated NTC to measure temperature and an 8-bit microcontroller to output the values of temperature and humidity as serial data.

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