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7Semi SHT41 Temperature & Humidity Sensor Tiny Breakout with I2C Qwiic

7Semi SHT41 Temperature & Humidity Sensor Tiny Breakout with I2C Qwiic

₹218.00Price
🌡️💧 7Semi SHT41 Temperature & Humidity Sensor Tiny Breakout (I²C Qwiic) — Technical Information
🔍 Overview
The module is based on the Sensirion SHT41 temperature and humidity sensor IC, a high-precision digital environmental sensor integrated into a compact (tiny) breakout with Qwiic interface.
  • Measures:
    • Temperature
    • Relative Humidity (RH)
  • Output:
    • Fully calibrated digital data via I²C
  • Special features:
    • Tiny form factor
    • Qwiic plug-and-play connectivity
👉 Designed for compact, low-power, and high-accuracy sensing applications.
⚙️ Working Principle
🌡️ Temperature Measurement
  • Uses bandgap temperature sensing
  • Converts temperature variations → digital signal
💧 Humidity Measurement
  • Uses a capacitive polymer sensing element
  • Absorbs moisture → capacitance change → digital RH value
🔄 Digital Signal Processing
  • Internal system:
    • Signal amplification
    • Analog-to-digital conversion
    • Factory calibration
👉 Outputs linear, ready-to-use digital values.
📊 Measurement Characteristics
🌡️ Temperature
  • Range: −40°C to +125°C
  • Accuracy: ±0.2°C (typical)
💧 Humidity
  • Range: 0–100% RH
  • Accuracy: ±1.8% RH (typical)
Resolution
  • High-resolution digital output
  • Fast response time
⚡ Electrical Characteristics
  • Supply voltage: 1.08V to 3.6V
  • Very low power consumption
  • Suitable for:
    • Battery-powered devices
🔗 Communication Interface
I²C Interface
  • Standard I²C communication
  • Default address: 0x44
Qwiic Connector
  • 4-pin JST connector:
    • VCC, GND, SDA, SCL
  • Enables:
    • Solderless connections
    • Daisy-chaining multiple sensors
🧠 Internal Features
✔ Factory Calibration
  • Fully calibrated at manufacturing
  • No external calibration required
✔ Integrated Heater
  • Built-in heater:
    • Removes condensation
    • Improves reliability in humid conditions
✔ Multiple Measurement Modes
  • High precision mode
  • Low power mode
  • Adjustable measurement timing
✔ Low Drift & High Stability
  • Maintains accuracy over long periods
🔄 Operating Behavior
✔ Measurement Cycle
  • Microcontroller sends I²C command
  • Sensor performs measurement
  • Returns temperature and humidity data
✔ Fast Response
  • Suitable for real-time environmental monitoring
✔ Environmental Compensation
  • Maintains accuracy across changing conditions
🔧 Mechanical Characteristics
  • Tiny breakout PCB
  • Qwiic-compatible connector
  • Designed for:
    • Space-constrained designs
🌡️ Environmental Characteristics
  • Operating temperature: −40°C to +125°C
  • Humidity range: 0–100% RH
⚠️ Limitations
  • Sensitive to:
    • Condensation (heater mitigates this)
  • Requires:
    • Proper airflow for accurate readings
  • Slight delay depending on measurement mode
🔌 Typical Pin Configuration (Qwiic)
  • VCC → Power
  • GND → Ground
  • SDA → Data
  • SCL → Clock
🧩 Functional Role
The module acts as a:
  • Temperature sensor
  • Humidity sensor
  • Compact environmental sensing unit
🏁 Summary
The 7Semi SHT41 Tiny Qwiic Breakout is a compact and high-performance environmental sensor that:
  • Measures temperature and humidity with high precision
  • Uses capacitive humidity + bandgap temperature sensing
  • Provides digital I²C output via Qwiic interface
  • Includes heater and multiple measurement modes
  • Is ideal for compact IoT and embedded systems
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