Gravity: AHT20 Temperature and Humidity Sensor

DFRobotSKU: SEN0528
Price:
Sale price £3.75
incl. VAT
excl. VAT
Stock:
Only 5 units left
Quantity:

Awesome Extras

DFRobotDFRduino Uno R3
Sale price £13.92 incl. VAT excl. VAT
DFRobotGravity: IO Expansion Shield for Arduino V7.1
Sale price £7.08 incl. VAT excl. VAT
DFRobotGravity: Nano I/O Shield for Arduino Nano
Sale price £7.58 incl. VAT excl. VAT

The AHT20 is a high-precision but low-cost temperature and humidity sensor, which is equipped with an improved MEMS semiconductor capacitive humidity sensor element. It features a standard I2C interface and a wide voltage supply of 2V-5V. With the simple peripheral circuit, it performs stably even in harsh environments in the measuring range of -40℃ ~ +85℃.

This sensor can be widely used for measuring the environmental temperature and humidity of home electronic equipment, the temperature and humidity of automobiles and more.

This version uses a 4-pin Gravity connector and comes complete with a 4-pin Gravity interface cable. No soldering required!

Connection Example - Arduino

Features

  • Digital output, I2C interface
  • Excellent long-term stability
  • Fast response, strong anti-interference, and adaptability
  • Gravity interface, simple wiring, no soldering required

Specifications

Module Parameters

  • Operating Voltage: DC2V-5V
  • Output Signal: I2C
  • I2C Address: 0x38
  • Dimension: 30mm×20.5mm/1.18×0.81"

AHT20 Chip Parameters

Relative Humidity

  • Resolution: 0.024 %RH
  • Accuracy Error: ±2 %RH
  • Repeatability: ±0.1 %RH
  • Hysteresis: ±1 %RH
  • Non-linear: ±0.1 %RH
  • Response Time: 8S
  • Operating Range: 0~100 %RH
  • Long-term Drift: <0.5 %RH/yr

Temperature

  • Resolution: 0.01℃
  • Accuracy Error: ±0.3℃
  • Repeatability: ±0.1℃
  • Hysteresis: ±0.1℃
  • Response Time: minimum 5S, maximum 30S
  • Operating Range: -40℃~85℃
  • Long-term Drift: <0.04℃/yr

Package Contents

  • 1x Gravity: AHT20 Temperature and Humidity Sensor
  • 1x Gravity 4-pin I2C/UART Sensor Cable

Resources

Pinout

Pin Function Description
+ Positive Power Supply Power Supply: DC 2V~5V
- Negative Power Supply --
SCL I2C Clock Line --
SDA I2C Data Line --

Payment & Accreditations

Payment methods
Visa Mastercard Maestro PayPal Amazon Klarna

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Accreditations