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  1. Parts
  2. /Sensors
  3. /Temp, humidity & pressure

Adafruit HTU21D-F Temperature & Humidity Sensor Breakout - STEMMA QT

OverviewWiringAlternates
Adafruit HTU21D-F Temperature & Humidity Sensor Breakout - STEMMA QT - Adafruit - 1899
Availability
In stock

STEMMA QT / Qwiic-compatible HTU21D-F temperature and humidity sensor breakout with onboard regulator, I2C level shifting, and 0x40 I2C address.

Parts tray full · 5 max · remove a part to add another
Adafruit HTU21D-F Temperature & Humidity Sensor Breakout - STEMMA QT — Adafruit — 1899

Offers

  • Adafruit$15.95
  • ?DigiKey$10.95
  • ?OpenCircuit€15.25
  • Pimoroni£10.80

Offers

  • Adafruit$15.95
  • ?DigiKey$10.95
  • ?OpenCircuit€15.25
  • Pimoroni£10.80

Pinout

Logical pinout · physical placement not verified
ADAFRUIT HTU21D-F TEMPGNDSDA3VoSCLVinSTEMMA QT
  • GND
    Type · Ground
  • 3Vo
    Type · Power
  • Vin
    Type · Power
  • SDA
    Type · I2C
  • SCL
    Type · I2C
  • STEMMA QT
    Type · Unknown
PinType
GNDGround
3VoPower
VinPower
SDAI2C
SCLI2C
STEMMA QTUnknown
Logical pinout · physical placement not verified
ADAFRUIT HTU21D-F TEMPGNDSDA3VoSCLVinSTEMMA QT

Pin details

6 connections
  1. GND
    Ground
  2. 3Vo
    Power
  3. Vin
    Power
  4. SDA
    I2C
  5. SCL
    I2C
  6. STEMMA QT
    Unknown

Start wiring

I2C · SPI · Single data line · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: GND, 3Vo, Vin, SDA, SCL. Schematik maps them to your board in the app.

Temp & humidity

165 other options

DHT/AHT sensors, SHT-series humidity chips, BMP and LPS barometers, BME combined sensors, DS18B20 probes, thermocouple amplifiers and non-contact MLX IR sensors — about 165 listings, very different accuracy classes.

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