DHT22 Temperature & Humidity Sensor — Digital Single-Bus (AM2302)

A genuine DHT22 (AM2302) digital temperature and humidity sensor module. Unlike the catalog's I2C AHT20 sensor, the DHT22 communicates over a single-wire digital timing protocol — the exact protocol most ESP32/Arduino DHT tutorials and libraries are written for, making it the right part when a guide's wiring and code specifically target DHT22/AM2302 rather than an I2C sensor.

Highlights

• Genuine DHT22 / AM2302 sensor element (Certified Original listing)
• Single-bus (1-wire) digital data protocol
• Ships with an attached cable and jumper wire set for direct breadboard use
• Compact module form factor, no external pull-up resistor needed for most wiring setups

Typical Uses

Weather stations, environmental loggers, humidity-controlled projects, and any lesson written specifically around the DHT single-bus protocol and DHT-family libraries (e.g. Adafruit DHT / DHT sensor library).

Compatibility

Works with ESP32, Arduino, and Raspberry Pi boards over a single digital GPIO pin using a DHT-protocol library. Confirm the chosen library supports DHT22/AM2302 specifically (not just DHT11) for correct readings.

What's Included

1x DHT22/AM2302 sensor module with attached cable and jumper wire connectors.

Notes

This is a single-bus digital sensor, not an I2C device — it uses a different wiring and library approach than the catalog's AHT20 module. Do not mix up DHT22 libraries with DHT11 libraries; using the wrong one will misread temperature/humidity values.