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Product Description
Product Features
DHT11 is a low cost humidity and temperature sensor with a single wire digital interface. It’s very basic but is great for hobbyists who want to do some basic data logging.The DHT sensors are made of two parts, a capacitive humidity sensor and a thermistor. And with a high-performance 8-bit microcontroller connected.
Technical Specification
Power supply voltage: 3.3~5.5V DC
Output: the single bus digital signal
Measuring range: 20-90%RH humidity, temperature 0~50°C
The measurement accuracy of ±5%RH: humidity, temperature ±2°C
Resolution: 1%RH humidity, temperature 1 °C
Exchangeability: fully interchangeable
Long term stability: < ± 1%RH
Operating specification
(1) Power and Pins
Power's voltage should be 3-5.5V DC. When power is supplied to sensor, don't send any instruction to the sensor within one second to pass unstable status. One capacitor valued 100nF can be added between VDD and GND for power filtering.
(2)Communication and signal Single-bus data is used for communication between MCU and DHT11.
Details
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sizeSmall size & low consumption & long transmission distance enable DHT11 to be suited in all kinds of harsh application occasions. |
Typical applicationThe sensor is a calibrated temperature and humidity combined sensor and doesn’t require extra components so you can both measure relative humidity and temperature. |
simple-uno-dht11-projectSingle-row packaged with three pins, making the connection very convenient. |
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