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Behavioural mixed-signal modelAM2302 moduledht22

DHT22 / AM2302 (temperature, humidity)

Temperature and humidity sensor with single-wire protocol (start pulse ≥ 1 ms, 40 bits with 26/70 µs pulses), module with 10 kΩ pull-up. New readings at most every 2 s. Values adjustable in the inspector, also during simulation. Drive with the Adafruit DHT library.

VCCDATAGNDAM2302 module
Schematic symbol

Key data

Category
Modules
Simulation model
Behavioural mixed-signal model
Manufacturer part number
AM2302 module
Reference prefix
U
Pins
3
Land pattern
PinHeader_1x03_P2.54mm_Vertical

Simulation model

A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.

Model
dht
Supply pins
VCC / GND

Pins 3

PinNameUse
VCCVCCSupply pinSupply 3.3–5 V
DATADATAI/O pinSingle-wire data: 10 kΩ pull-up (often on the module)
GNDGNDGround pinGround

Parameters 2

Temperaturetemplive
Default22 °C
Humidityhumlive
Default50 %

PCB

Connector / off-boardPinHeader_1x03_P2.54mm_Vertical

DHT22 / AM2302 (temperature, humidity) as a module on a 3-pin header (VCC, DATA, GND) – compare the order with your own module