Differences

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--- composants:am2302dht22 [2019/08/13 19:09] – mh
+++ composants:am2302dht22 [2025/06/02 21:23] (current) – external edit 127.0.0.1
@@ Line 7: / Line 7: @@
 ===== Specifications =====
-//(1 source)//
+//(Source : [[https://learn.adafruit.com/dht/overview|Adafruit]])//
+  *Low cost
+  *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 15.1mm x 25mm x 7.7mm
+  *4 pins with 0.1" spacing
-  *0 to 100% for humidity
-  *-40°C to +125°C for temperature
@@ Line 17: / Line 24: @@
 You can use the Adafruit DHT library.
-===== Demo =====
+{{composants:dht22wiring.jpg}}
+<WRAP info>DHT22 and AM2302 often have a pullup already inside, but it doesn't hurt to add another one ! </WRAP>
+===== Demo =====
-++++ Arduino Code |
+Use the basic example from Adafruit library
-<code c>
-</code>
-++++
 ===== Ressources =====
-  *
+  *[[https://learn.adafruit.com/dht/overview|Adafruit]]