Si7021 I2C Temperature & Humidity Sensor

Specifications:

• Operating Voltage: 1.9V to 3.6V Input
• Operating Humidity: 0-100% Relative Humidity
• Communication Protocol: I2C
• Active Current: 150mA
• Standby Current: 60nA
• Factory-calibrated
• Operating Temperature: -40 - 125C
• Relative Humidity accuracy: +- 3%
• Temperature Accuracy: +-0.4 deg C
• Integrated on-chip heater
• 3x3 mm DFN Package
• Excellent long term stability
• Optional factory-installed white PTFE filter which protects the sensor from liquids and particulates
• Low-profile
• Default I2C Address: 0x40
• Compatible with:
  • Arduino UNO (with Logic Level Converter)
  • Arduino Mega (with Logic Level Converter)
  • Raspberry Pi

Pinout:

• Vin: 1.9V - 3.6V DC
• GND: 0V
• SCL: I2C clock pin (connect to microcontroller's I2C clock pin)
• SDA: I2C data pin (connect to microcontroller's I2C data pin)