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General| Humidity Range | 0 to 100% RH |
|---|---|
| Communication Protocol | I2C |
| Supply Voltage | 1.9 to 3.6 V |
| Accuracy (Temperature) | ±0.4 °C |
| Accuracy (Humidity) | ±3% RH |
| Operating Voltage | 3.3 V |
| I2C Address | 0x40 |
| Sensor Type | Temperature and Humidity |
| Operating Current | 150µA |
Explains the power connections for the sensor, including Vin for power input and 3v3 for output.
Describes the I2C communication pins: SCL for the clock signal and SDA for data transfer.
Instructions on cutting and preparing the header strip for soldering to the sensor breakout board.
Details placing the sensor breakout board onto the prepared header pins for soldering.
Instructions and tips for soldering all pins of the sensor breakout board for reliable connection.
Guides users on installing the necessary Adafruit Si7021 library via the Arduino IDE library manager.
Instructions for opening and uploading the example 'si7021' sketch to the Arduino.
Explains sensor initialization, reading temperature, humidity, and serial number using library functions.
Provides wiring diagrams for connecting the Si7021 sensor to CircuitPython boards using I2C.
Shows how to wire the Si7021 sensor to a Raspberry Pi for Python use via I2C.
Details the steps to install the Adafruit CircuitPython Si7021 library on a CircuitPython board.
Explains how to install the Adafruit_Blinka library for Python support and the Si7021 library.
Demonstrates initializing the sensor and reading temperature/humidity in Python REPL.
Provides links to essential files like Fritzing objects, PCB files, datasheets, and calibration notes.
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