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AM2302 DHT22 Digital Temperature and Humidity Measurement Sensor

AM2302 DHT22 Digital Temperature and Humidity Measurement Sensor

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AM2302 DHT22 Digital Temperature and Humidity Measurement Sensor

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AM2302 DHT22 Digital Temperature and Humidity Measurement Sensor

AM2302 DHT22 Digital Temperature and Humidity Measurement Sensor:you can never say no to deals on our shop for as low as 48% off! These work great with the raspberry pi. In the graph you can see that I have 3 DHT22 sensors and they all agree within about half a degree F. The two I received together in this order (The blue and yellow lines in the graph) are even closer, typically within 0.2 degree F of each other. The green line is from a sensor that I accidentally hooked up using too small a resistor (2.2K instead of 10K). Smoke started pouring out of it and it was too hot to touch. Once I figured out what I had done, I was about to throw it away but decided to try it again. Amazingly the temperature sensor still works great. The humidity is fried (always reports 1%). So these things are fairly hardy.If you are deciding between DHT11 and DHT22 - note that the DHT11 (the orange in the graph) has huge jumps of ~2 degrees F as opposed to the DHT22 which changes by 0.1 - 0.2 degrees F. DHT11 costs 3-4 times less but has much less precision.recommended,40% off cheap sale,san diego mallAM2302 DHT22 Digital Temperature and Humidity Measurement Sensor