Adafruit Αισθητήρας Υγρασίας & Θερμοκρασίας - STEMMA QT / Qwiic - Sensirion SHT40

09-00004885
ADA4885
Διαθέσιμο
Αποστολή σε 24 ώρες
740
Gropbotronics Store Availability
Διαθεσιμότητα Καταστημάτων
Πληρωμή & Μεταφορικά

Sensirion Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. And finally, we have some that have a true I2C interface for easy reading. The SHT40 sensor is the fourth generation (started at the SHT10 and worked its way up to the top!). The SHT40 has an excellent ±1.8% typical relative humidity accuracy from 25 to 75% and ±0.2 °C typical accuracy from 0 to 75 °C.

Unlike some earlier SHT sensors, this sensor has a true I2C interface for easy interfacing with only two wires (plus power and ground!). Thanks to the voltage regulator and level shifting circuitry we've included on the breakout It is also is 3V or 5V compliant, so you can power and communicate with it using any microcontroller or microcomputer.

Such a lovely chip - so we spun up a breakout board with the SHT4x and some supporting circuitry such as pullup resistors and capacitors. To make things even easier, we've included SparkFun Qwiic compatible STEMMA QT connectors for the I2C bus so you don't even need to solder! QT Cable is not included, but we have a variety in the shop

If you prefer working on a breadboard, each order comes with one fully assembled and tested PCB breakout and a small piece of header. You'll need to solder the header onto the PCB, but it's fairly easy and takes only a few minutes even for a beginner. 

We've written both Arduino and CircuitPython/Python library code for this chip, so you can use it with just about any microcontroller or single-board computer like Raspberry Pi.

SHT40 Specifications & Features

  • Relative humidity accuracy: up to ±1.8 %RH
  • Temperature accuracy: up to ±0.2 °C
  • Breakout supply voltage: 3.3 to 5V
  • Average bare sensor current: 0.4 μA (at meas. rate 1 Hz)
  • Idle bare sensor current: 80 nA
  • I2C fast mode plus, CRC checksum
  • Operating range: 0…100 %RH, -40…125 °C
  • Fully functional in condensing environment
  • Variable power heater
  • NIST traceability for sensor
  • JEDEC JESD47 qualification for sensor
  • Mature technology from global market leader Sensirion
  • I2C address 0x44

Κατασκευαστής
Adafruit
Part Number
ADA4885
Εγγύηση
Ως εξάρτημα, δεν καλύπτεται
Καθ. Βάρος
0.001kg
Τύπος Αισθητήρα
  • Θερμοκρασίας
  • Υγρασίας
Τυπική Τάση Εισόδου
  • 3.3VDC
  • 5VDC
Ρεύμα Λειτουργίας
0.4mA
Διασύνδεση
  • Ψηφιακή
Πρωτόκολλο Eπικοινωνίας
  • I2C
Βρες Παρόμοια
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