The manual details features, specifications, electrical characteristics and communication protocols for the Aosong AM2322 digital temperature and humidity…
The AM2322 is a compact, low‑power digital temperature and humidity sensor that integrates a capacitive humidity element, a precision temperature element and a high‑performance micro‑processor. It is suitable for HVAC, dehumidifiers, data loggers, weather stations, consumer electronics, automotive and many other applications.
The document provides a product overview, mechanical dimensions, performance tables, electrical characteristics, pin definitions, single‑wire and I2C communication protocols, wiring diagrams, timing specifications, usage guidelines, safety warnings and warranty information. This manual is written in Chinese.
| Humidity resolution | 0.1 %RH |
|---|---|
| Humidity range | 0 – 99.9 %RH |
| Humidity accuracy (25 °C) | ±2 %RH |
| Humidity response time | <5 s (1/e) |
| Sleep current | 8–10 µA |
| Supply voltage | 3.1 – 5.5 V |
| Temperature resolution | 0.1 °C (16‑bit) |
| Temperature range | -40 °C to 80 °C |
The sensor supports both single‑wire (1‑wire) and standard I2C interfaces.
It operates from 3.1 V to 5.5 V.
The humidity response time is less than 5 seconds (1/e).