Sensors

DHT11

Low-cost digital temperature and humidity sensor module used in beginner Arduino projects.

China-madeAosongActiveEasy

Best For

Projects needing Temperature and Humidity with a commonly available sensors part.

Avoid If

You need production-grade certainty without checking the exact module vendor, pinout, and library maintenance status.

Quick Decision Notes

DHT11 is indexed as a sensors part from Aosong. ChipScout tracks it by practical maker-facing dimensions: interfaces, library readiness, estimated price, field-level sources, and whether the page is strong enough for selection rather than only lookup.

Technical Specifications

MeasurementTemperature + humiditySource: Aosong
InterfaceSingle-wire digitalSource: Aosong
AccuracyBasicSource: Aosong
Working Voltage3.3V - 5VSource: Aosong

Common Use Cases

  • Maker prototypes
  • Low-cost modules
  • Educational hardware

Known Issues

  • Breakout boards may use different pin labels or regulator choices
  • Clone modules can differ from the original datasheet part

Interfaces and Library Support

Interfaces
GPIO
Wireless
None
Voltage
3.3V
Libraries
Arduino verifiedMicroPython verified
Data Integrity78% confidence
Sourcehttps://www.aosong.com/
Last verified2026-05-20
Core specsVerified
PinoutAvailable
Library supportChecked
Price rangePresent
Found a wrong spec?

Every field is meant to be source-backed. Corrections should include a datasheet URL, vendor page, module photo, or reproducible library test.

Submit correction

Source Resources

Pinout Table

VCC3.3VPower the module from a rail that matches the breakout board, not just the bare IC.
GNDCommon groundConnect ground between the controller, sensor/module, and external power supply.
SignalMCU GPIO / ADCUse a digital input, output, PWM, or ADC pin based on the module output type.

Pinout is not yet source-verified. Use the table as an integration checklist, then confirm exact pins against the module vendor page before wiring hardware.

Common Wiring

VCC

Power the module from a rail that matches the breakout board, not just the bare IC.

GND

Connect ground between the controller, sensor/module, and external power supply.

Signal

Use a digital input, output, PWM, or ADC pin based on the module output type.

Arduino Example

void setup() {
  Serial.begin(115200);
  Serial.println("DHT11 GPIO wiring smoke test");
}

void loop() {
  // Replace with the maintained DHT11 library or module protocol.
  Serial.println("Read or toggle the connected signal pin.");
  delay(1000);
}

MicroPython Example

from machine import Pin
import time

signal = Pin(0, Pin.IN)

while True:
    # Replace with the maintained DHT11 driver or module protocol.
    print("DHT11 signal:", signal.value())
    time.sleep(1)

Recommended Development Boards

ESP32-C3 development board

Low-cost Wi-Fi/BLE board with enough interfaces for most sensors and modules.

Arduino Uno R4 / compatible

Good baseline for beginner wiring and library validation.

Raspberry Pi Pico W

Practical MicroPython target for I2C, SPI, UART, PWM, and ADC experiments.

Alternative Model Reasons

ACS712SensorsCompare this option when price or module availability is the deciding constraint.
ADXL345SensorsThis alternative currently has stronger source coverage and confidence in ChipScout.
AHT10SensorsCompare this option when price or module availability is the deciding constraint.
AHT20SensorsThis alternative currently has stronger source coverage and confidence in ChipScout.

Common Questions

What is DHT11 best used for?

Projects needing Temperature and Humidity with a commonly available sensors part.

Does DHT11 support Arduino or MicroPython?

DHT11 has verified Arduino support and verified MicroPython support.

What interfaces does DHT11 use?

DHT11 lists GPIO; wireless support is no wireless protocol.

Compare DHT11 vs ACS712

Alternatives and Related Parts