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Temp/fuktsensor DHT22

Art nr: 41016347
Handla denna produkt Temp/fuktsensor DHT22
pris 129 SEK
Inklusive 25% moms
Lagervara, 64 st
Enhet: styck

10 000 produkter

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Frakt från 29 kr

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The DHT22 is a basic, 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). It's 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.

Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin, and the rightmost pin to ground. Although it uses a single wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin.

Comes with a 4.7K - 10K resistor, which you will want to use as a pullup from the data pin to VCC.

* 3 to 5V power and I/O
* 2.5mA max current use during conversion (while requesting data)
* Good for 0-100% humidity readings with 2-5% accuracy
* Good for -40 to 80°C temperature readings ±0.5°C accuracy
* No more than 0.5 Hz sampling rate (once every 2 seconds)
* Body size 27mm x 59mm x 13.5mm (1.05" x 2.32" x 0.53")
* 4 pins, 0.1" spacing
* Weight (just the DHT22): 2.4g


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