Motorola

DHT11

Alex Hale Published Mar 15, 2022 Updated Nov 1, 2026 6 views

Package PDIP, SOIC

DHT11 datasheet (PDF) Preview Buy DHT11

Key specifications

Operating Voltage

3.5V to 5.5V.

Operating current

0.3mA (measuring) 60uA (standby)

Output

Serial data.

Temperature Range

0°C to 50°C.

Humidity Range

20% to 90%

Resolution

Temperature and Humidity both are 16-bit.

Accuracy

±1°C and ±1%

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HC05 follows the “Bluetooth V2.0+EDR” protocol (EDR stands for Enhanced Data Rate).
Its operating frequency is 2.4 GHz ISM Band.
HC05 uses CSR Bluecore 04-External single-chip Bluetooth system with CMOS technology.
This module follows the IEEE (Institute of Electrical and Electronics Engineers) 802.15.1 standard protocol.
Dimensions of HC-05 are 12.7mmx27mm.
Its operating voltage is 5V.
It sends and receives data by UART, which is also used for setting the baud rate.
it has -80dBm sensitivity.
This module also uses (FHSS), a technique by which a radio signal is sent at different frequency levels.
This module has the ability to work as a master/slave mode.

DHT11 Relative Humidity and Temperature Sensor can be used in many applications like:
HVAC (Heating, Ventilation and Air Conditioning) Systems.
Weather Stations.
Medical Equipment for measuring humidity.
Home Automation Systems.
Automotive and other weather control applications.

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PDF · 34 KB