Little Bird Circuits breadboard diagrams you can open in Fritzing Playground
PRP 4 — Temperature and humidity (DHT22 / RHT03) 3 parts · 5 wires · 3 views Download .fz Embed view

A DHT22 on a single data line, with the pull-up resistor its datasheet requires. The sensor does its own conversion and hands the board real units.

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Shared from Little Bird Electronics. Opens in Fritzing — this image was created with Fritzing, and its part graphics are CC BY-SA 3.0.